Skip to content

Fixation Hardware

Hand fixation hardware: K-wires, plates, screws, and external fixation—indications, biomechanics, and complication management.

Overview

Alternative fixation methods for volar lunate facet fractures of the distal radius demonstrate promising outcomes with high union rates and few complications, although existing studies have small sample sizes [1]. Locked plating represents a major advance in fracture care with advantages including improved construct stability, preservation of fracture biology, and potentially higher union rates with lower infection rates [4]. Current indications for locked plating include periarticular fractures, typically those with metaphyseal comminution [19]. Internal fixation remains an effective option in select clinical circumstances, with successful healing and avoidance of complications largely determined by surgical technique [3].

Locking plate fixation has not proven clinical superiority in any anatomic site where good-quality comparative analyses are available [2]. The routine use of locking screws in the shaft portion of volar plates for distal radius fractures does not appear justified [16]. There is no advantage of open reduction internal fixation over percutaneous pinning for Bennett fractures according to current best evidence [21]. Treating comminuted phalangeal fractures by ligamentotaxis using a single Kirschner wire obviates the need for complex open reduction and internal fixation or an uncomfortable external fixator, providing good functional results with a cheaper implant [25]. The benefits of screw fixation for distal phalanx fractures do not outweigh the cost of frequent reoperation, as the study design fails to demonstrate superiority over K-wire fixation in a clinically meaningful way [59].

The use of a locking plate as a definitive external fixator is an alternative choice for tibial fractures after obtaining appropriate fracture reduction [8]. The concept of biological fixation must be applied to optimize healing potential and avoid complications in segmental tibial fractures [11]. Acceptable results can be achieved with internal fixation for difficult humeral shaft fractures, provided the correct principles of fixation are carefully followed [14].

Anatomy & Pathophysiology

Osseous

Fractures of the forearm, wrist, and hand represent the most frequent skeletal trauma in the pediatric age group [57]. While the majority of hand fractures can be treated without surgery, operative intervention offers distinct advantages in properly selected cases [64]. Treatment goals for hand fractures include restoration of length, alignment, and articular congruity, along with stabilization and soft tissue repair [52]. Management requires balancing the prevention of stiffness through early motion with the avoidance of deformity via adequate reduction and stabilization [34]. Accurate diagnosis and management of hand and carpal fractures and dislocations are predicated on a thorough physical examination and appropriate imaging to limit joint stiffness while preserving mobility and function [31].

Specific fixation strategies demonstrate distinct outcomes. Percutaneous elastic intramedullary nailing of metacarpal fractures results in good hand function with few complications [42]. For unstable dorsal fracture-dislocations, both volar plating and external fixation can obtain a good range of motion at the proximal interphalangeal joint [45]. In cases of exploded hand syndrome, thumb ray dysfunction in sensibility and mobility remains the main functional disability, despite generally good outcomes [40].

Soft Tissue & Functional Considerations

Hand surgery treatment principles emphasize the balance between restoring function and maintaining aesthetic appearance [49]. For 3D-printed custom-designed prostheses for partial hand amputation, mechanical solutions to minimize force required at the wrist to activate grip are still required [30]. Ballistic injuries to the hand are frequently associated with fractures and neurovascular and tendon injuries [66].

Classification

Alternative Fixation Methods: Alternative fixation methods for volar lunate facet fractures of the distal radius demonstrate promising outcomes with high rates of union and few complications, although existing studies have small sample sizes [1]. Locking plate fixation has not proven clinical superiority in any anatomic site for which good-quality comparative analyses are available [2].

Locked Plating: Locked plating represents a major advance in fracture care with advantages including improved construct stability, preservation of fracture biology, and potentially higher union rates with lower infection rates [4]. The Locking Compression Plate (LCP) is a new implant revolutionizing internal fixation that requires adapted surgical techniques and new thinking about commonly used concepts of interventional fixation to avoid failures and complications [12]. The design of the Locking Compression Plate allows the surgeon to choose between compression plate and internal fixator anchorage depending on the fracture type and bone quality [58]. Standard locking systems provide the greatest resistance to rotational failure at the screw/plate interface compared with variable angle locking systems [44].

Specific Fracture Classifications and Fixation Strategies: Scaphoid Non-union: Double screw and plate fixation provides greater stability compared to single screw fixation in scaphoid fracture non-union models [5]. Tibial Fractures: The use of a locking plate as a definitive external fixator is an alternative choice for tibial fractures after obtaining appropriate fracture reduction [8]. The concept of biological fixation must be applied to optimize healing potential and avoid complications in segmental tibial fractures [11]. Concerns regarding the safety and application of posterolateral plating for distal tibial fractures include the management of open wounds, the classification of wound complications, the use of the technique for Type 42 fractures, the impact of supplementary fixation on non-union rates, and the potential for symptomatic implants due to inadequate plate fit [39]. Humeral Shaft: The use of percutaneous fixation for humeral shaft fractures is questioned, with suggestions that complications could have been potentially avoidable with conventional debridement, lavage, and stabilization with methods such as external fixation [24]. Phalangeal Fractures: Treating comminuted phalangeal fractures by ligamentotaxis using a single Kirschner wire obviates the need for complex open reduction and internal fixation or an uncomfortable external fixator, giving good functional results with a readily available cheaper implant [25]. Bennett Fracture: The plate-screw model demonstrated superior biomechanical stability, making it the most suitable fixation method among those studied in Bennett fracture fixation [60]. Medial Tibial Plateau (Schatzker 4): The hypothesis that screw fixation provides sufficient stability in medial tibial plateau fractures (Schatzker 4) was not confirmed in a biomechanical comparison with plate-screw fixation [65].

Other Considerations: Commonly utilized screws in upper extremity surgery include headless screws, stand-alone lag screws, non-locking and locking screws for plating, and biocomposite screws, with their basic dimensions codified into a reference chart for the treatment of bone of varying dimensions [46].

Clinical Presentation

Alternative Fixation Modalities: Volar lunate facet fractures demonstrate high union rates and few complications with alternative fixation methods, although existing studies have small sample sizes [1]. Locking plate fixation has not proven clinical superiority in any anatomic site where good-quality comparative analyses are available [2]. Overall patient-reported outcome measure scores are similar across fixation methods for proximal phalanx fractures, while unplanned reoperation is more prevalent after plate fixation [7].

Technique and Stability: Internal fixation remains an effective option in select clinical circumstances, with successful healing and avoidance of complications largely determined by surgical technique [3]. Locked plating offers advantages including improved construct stability, preservation of fracture biology, and potentially higher union rates with lower infection rates [4]. Double screw and plate fixation provides greater stability compared to single screw fixation in a scaphoid fracture non-union model [5]. Fixation with locking plates for metacarpal shaft fractures allows earlier mobilization without the need for splinting [15].

Anatomic and Patient-Specific Considerations: Operative fixation of paediatric hand fractures is associated with a higher risk of complications [10]. Neither percutaneous pinning nor other fixation methods for fractures in the proximal third of the proximal phalanx was superior in terms of measured parameters, and overall results were not as good as reported in the literature [17]. Primary internal fixation with a lag screw for avulsion fractures from the base of the proximal phalanges of the fingers provided excellent results with full range of movement and union in all cases [18].

Specialized Fixation Strategies: The use of a locking plate as a definitive external fixator is an alternative choice for tibial fractures after obtaining appropriate fracture reduction [8]. The concept of biological fixation must be applied to optimise healing potential and avoid complications in segmental tibial fractures [11]. Percutaneous ilio-sacral screw fixation presents challenges, as highlighted by clinical case-series results [32]. Intramedullary interlocking devices for MCP arthrodesis provide a reliable method with rapid and consistent bony fusion, strong fixation allowing simplified rehabilitation, and avoidance of soft tissue irritation or hardware removal [33]. Halo fixation can provide adequate rigidity for other clinical problems if the biomechanical requirements of the pathology and the limitations of the various halo-jacket constructs are understood [35]. Excellent results may be obtained with pins and rubber traction systems for intra-articular proximal interphalangeal joint fractures, provided some technical points are carefully followed during application of the fixator [36].

Implant-Specific Risks and Optimization: The clinical performance of locked plates is generally good, but several unique complications have been noted [6]. The Locking Compression Plate (LCP) requires adapted surgical techniques and new thinking about commonly used concepts of interventional fixation to avoid failures and complications [12]. Low-profile double-plate osteosynthesis for olecranon fractures does not significantly reduce the rate of hardware removal, and functional results are comparable to common single–posterior plate osteosynthesis [13]. The most experienced surgeons are less likely to place short and excessively long screws in a cadaveric, small-bone fracture model [9].

Investigations

Plain radiography: Standard radiographs (AP/outlet), particularly in internal rotation, may miss nearly half of screw cut-outs in proximal humerus fractures [83]. For forearm compression plate removal, the presence of residual radiolucency serves as an important contraindication [76].

Other Considerations: Alternative fixation methods for volar lunate facet fractures of the distal radius demonstrate promising outcomes with high union rates and few complications, although existing studies have small sample sizes [1]. Locking plate fixation has not proven clinical superiority in any anatomic site for which good-quality comparative analyses are available [2]. Internal fixation remains an effective option in select clinical circumstances, with successful healing and avoidance of complications largely determined by surgical technique [3]. The clinical performance of locked plates generally has been good, but several unique complications have been noted [6].

Specific Fixation Modalities: Double screw and plate fixation: Provides greater stability compared to single screw fixation in a scaphoid fracture non-union model [5]. Locking plate as external fixator: The use of a locking plate as a definitive external fixator is an alternative choice for tibial fractures after obtaining appropriate fracture reduction [8]. Metacarpal shaft fractures: Fixation with locking plates allows earlier mobilization without need for splinting [15]. Proximal phalanx fractures: Percutaneous pinning and alternative fixation methods were not superior in measured parameters for proximal third proximal phalanx fractures, though overall results were not as good as reported in the literature [17]. Primary internal fixation with a lag screw for avulsion fractures from the base of the proximal phalanges provided excellent results with full range of movement and union in all cases [18]. Radiological fracture union occurred in all patients treated with retrograde intramedullary cannulated headless screws for proximal phalanx fractures at a mean of 5 weeks [28]. Bony mallet finger: Both extension block pinning and hook plate fixation give good results [84]. Slipped capital femoral epiphysis: Two screws are recommended for fixation after observing progression after fixation with a single cannulated screw [20]. Osteotomy: The new fixation device (TomoFix) allows stable fixation of the osteotomy without bone grafting [80].

Complications and Salvage: Operative fixation of paediatric hand fractures was associated with a higher risk of complications [10]. Salvage of failed instrumentation of the distal radius with spanning dorsal distraction plating avoided fusion in 10/11 patients, with generally significant improvement in alignment and function even in the setting of infected nonunion [78]. The most experienced surgeons were less likely to place short and excessively long screws in a cadaveric, small-bone fracture model [9].

Treatment

Non-Operative

No non-operative management evidence is provided in the source data for this section.

Operative

Indications: Internal fixation remains an effective option in select clinical circumstances, with successful healing and complication avoidance largely determined by surgical technique [3]. No single method should be prescribed for fixing a particular type of fracture; management must be individualized based on fracture configuration, surgeon and patient preferences, and likely patient compliance [38]. Current indications for locked plating specifically include periarticular fractures, typically those with metaphyseal comminution [19]. Prophylactic intramedullary nailing should be considered for incomplete atypical femoral fractures related to bisphosphonate treatment if the patient is in intractable pain, as non-operative treatment is not reliable [62].

Surgical Approach / Technique: Alternative fixation methods for volar lunate facet fractures of the distal radius demonstrate promising outcomes with high union rates and few complications, though existing studies have small sample sizes [1]. Acceptable results can be achieved with internal fixation for difficult humeral shaft fractures, provided correct principles of fixation are carefully followed [14]. Percutaneous fixation for certain humeral shaft fractures may lead to avoidable complications, with conventional debridement, lavage, and stabilization using methods such as external fixation suggested as alternatives [24]. Open reduction and interfragmentary screw fixation is an effective treatment modality for symptomatic non-union of distal phalangeal fractures, resulting in union and normal function with minimal morbidity [70].

Implant Selection: Locked plating offers advantages including improved construct stability, preservation of fracture biology, and potentially higher union rates with lower infection rates [4]. However, locking plate fixation has not proven clinical superiority in any anatomic site where good-quality comparative analyses are available [2]. The routine use of locking screws in the shaft portion of volar plates for distal radius fractures is not justified [16]. Using shorter plates and bicortical nonlocking screws reduces overall stiffness in lateral locked plating of distal femoral fractures [71]. Non-locking plates are appropriate for most metacarpal and phalangeal fractures necessitating plate fixation [74]. Plate fixation is safe and reliable for closed multiple metacarpal fractures with consistently reproducible outcomes, particularly when fracture patterns are unsuitable for screw fixation alone [48, 51]. Double screw and plate fixation provides greater stability compared to single screw fixation in a scaphoid fracture non-union model [5]. Low-profile double-plate osteosynthesis for olecranon fractures does not significantly reduce the rate of hardware removal compared to common single-posterior plate osteosynthesis, with comparable functional results [13]. Two screws are recommended for slipped capital femoral epiphysis fixation to prevent progression [20]. There is no advantage of open reduction internal fixation over percutaneous pinning for Bennett fractures according to current best evidence [21]. Open reduction and internal fixation with intramedullary devices is a simple method that provides excellent healing and function without undue risk of non-union or postoperative infection for clavicular fractures when indicated [56]. Screw arthrodesis demonstrated a lower nonunion rate than wire fusion for proximal interphalangeal joint arthrodesis, though existing data have significant limitations [54]. K-wire fixation for trapeziometacarpal arthrodesis led to a 20% non-union rate, resulting in the senior author discontinuing this method [68]. Pullout suture using polyamide monofilaments for volar plate avulsion fractures of the proximal interphalangeal joint provides fixation without displacement, involves less soft tissue dissection, and results in almost non-existent flexion contracture [73]. LCP external fixation is an unconventional alternative to traditional external fixation that may benefit carefully selected cases of fractures and nonunions, though it carries a unique set of complications requiring close clinical and radiological follow-up [27].

Alignment / Balancing Strategy: Patient-reported outcome measure scores are similar across fixation methods for proximal phalanx fractures, while unplanned reoperation is more prevalent after plate fixation [7].

Pain Management: No evidence is provided regarding analgesia regimens.

Adjuncts: No evidence is provided regarding tourniquets, tranexamic acid, drains, navigation, or robotics.

Revision: Infected non-union is a devastating complication requiring complex reconstruction surgery with unpredictable outcomes [69].

Complications

Alternative fixation methods for volar lunate facet fractures of the distal radius demonstrate high rates of union and few complications, although existing studies possess small sample sizes [1]. Successful healing and avoidance of complications with internal fixation are largely determined by surgical technique [3]. Locking plate fixation has not proven clinical superiority in any anatomic site where good-quality comparative analyses are available [2].

Infection (PJI): Locked plating offers advantages including potentially higher union rates with lower infection rates [4].

Other Considerations: Several unique complications have been noted with the clinical performance of locked plates [6]. The Locking Compression Plate (LCP) requires adapted surgical techniques and new thinking about commonly used concepts of interventional fixation to avoid failures and complications [12]. LCP external fixation is not without its own unique set of complications requiring close clinical and radiological follow-up [27]. Unplanned reoperation was more prevalent after plate fixation compared to other fixation methods for proximal phalanx fractures [7]. Operative fixation of paediatric hand fractures is associated with a higher risk of complications [10]. Magnesium bioabsorbable compression screws for scaphoid fractures demonstrate a high rate of complications, including non-union and screw instability [63].

Recovery

Light activity (weeks): Radiological fracture union occurs rapidly in specific contexts, such as proximal phalanx fractures treated with retrograde intramedullary cannulated headless screws, which achieve union at a mean of 5 weeks [28]. For displaced Bennett's fractures managed with closed reduction and K-wire fixation, long-term patient-reported outcomes demonstrate excellent functional results and high satisfaction, supporting early mobilization protocols [72]. In hand and wrist ballistic fractures, the majority of patients undergo early operative intervention with percutaneous fixation, allowing for swift transition to light activity [29].

Full activity (months): Minimally invasive thumb carpometacarpal joint arthrodesis using headless screws and arthroscopic assistance results in complete union at the fusion site at a mean of 9 weeks, accompanied by reported pain relief [85]. Arthrodesis of the thumb interphalangeal joint and finger distal interphalangeal joints with headless compression screws achieves fusion rates that compare favorably with prior series using other fixation methods [82]. For radial head fractures (Mason type II-III), both absorbable pins and mini-screws provide adequate strength and rigidity, allowing good clinical and functional scores at mid-term follow-up [75].

Complete recovery / outcome plateau (months): Overall patient-reported outcome measure scores are similar across fixation methods for proximal phalanx fractures, although unplanned reoperation is more prevalent after plate fixation [7]. Low-profile double-plate osteosynthesis for olecranon fractures yields comparable functional results to common single-posterior plate osteosynthesis, without significantly reducing the rate of hardware removal [13]. Locked plating offers advantages including improved construct stability, preservation of fracture biology, and potentially higher union rates with lower infection rates [4]. However, the clinical performance of locked plates is generally good, but several unique complications have been noted [6].

Rehabilitation protocol: Successful fixation requires devices made of tissue-compatible materials with sufficient strength, ease of insertion, and long-term function without deleterious effects [23]. Internal fixation remains an effective option in select clinical circumstances, with successful healing and avoidance of complications largely determined by surgical technique [3]. Alternative fixation methods for volar lunate facet fractures of the distal radius demonstrate high rates of union and few complications, although existing studies have small sample sizes [1]. Locking plate fixation has not proven clinical superiority in any anatomic site where good-quality comparative analyses are available [2]. Double screw and plate fixation provides greater stability compared to single screw fixation in a scaphoid fracture non-union model [5]. Treatment of Pauwels type 3 femoral neck fractures using cannulated screws combined with a medial buttress plate improves the fracture union rate compared to historical series using cannulated screws alone at short-term follow-up [81].

Functional milestones: The most experienced surgeons are less likely to place short and excessively long screws in a cadaveric, small-bone fracture model, suggesting that technical precision influences hardware placement and potentially subsequent functional outcomes [9].

Key Evidence

  • [L4] Although alternative fixation methods have demonstrated promising outcomes with high rates of union and few complications, the existing studies have small sample sizes. (10.1016/j.jhsg.2025.100738)
  • [L4] Locking plate fixation has yet to prove clinical superiority in any anatomic site for which good-quality comparative analyses are available. (10.1016/j.otsr.2016.11.006)
  • [L5] Internal fixation remains an effective option in select clinical circumstances, with successful healing and avoidance of complications largely determined by surgical technique. (10.5435/jaaos-d-23-01256)
  • [L5] Locked plating represents a major advance in fracture care with advantages including improved construct stability, preservation of fracture biology, and potentially higher union rates with lower infection rates. (10.5435/00124635-200603000-00009)
  • [L5] Double screw and plate fixation provides greater stability compared to single screw fixation. (10.1016/j.jhsa.2016.07.052)
  • [L5] The clinical performance of locked plates generally has been good, but several unique complications have been noted. (10.5435/00124635-200806000-00007)
  • [L4] Overall patient-reported outcome measure scores were similar across fixation methods, and unplanned reoperation was more prevalent after plate fixation. (10.1016/j.jhsa.2019.08.010)
  • [Paper] Clinical outcomes show that the use of locking plate as a definitive external fixator is an alternative choice for tibial fractures after obtaining appropriate fracture reduction. (10.1016/j.injury.2016.11.031)
  • [L5] The most experienced surgeons were less likely to place short and excessively long screws. (10.1016/j.jhsa.2018.04.011)
  • [L4] Operative fixation was associated with a higher risk of complications. (10.1177/1753193412475045)
  • [L4] The concept of biological fixation must be applied to optimise healing potential and avoid complications. (10.1016/j.injury.2004.01.012)
  • [L5] The Locking Compression Plate (LCP) is a new implant revolutionizing internal fixation that requires adapted surgical techniques and new thinking about commonly used concepts of interventional fixation to avoid failures and complications. (10.1016/j.injury.2003.09.026)
  • [L3] However, the rate of hardware removal was not significantly reduced, and the functional results were comparable to those of common single–posterior plate osteosynthesis. (10.1016/j.jse.2020.01.091)
  • [L4] While closed treatment remains the method of choice for most fractures, acceptable results can be achieved with internal fixation, even for difficult fractures, provided the correct principles of fixation are carefully followed. (10.2106/00004623-198668030-00018)
  • [L3] Fixation with locking plates allows earlier mobilization without need for splinting. (10.1177/1558944718798854)
  • [L4] The routine use of locking screws in the shaft portion of volar plates does not appear justified. (10.1007/s11552-014-9722-y)
  • [L3] Neither fixation method was superior in terms of measured parameters, but overall results were not as good as what has been reported in the literature. (10.1016/j.jhsa.2012.04.019)
  • [L4] Primary internal fixation with a lag screw provided excellent results with full range of movement and union in all cases. (10.1054/jhsb.2002.0842)
  • [L5] Current indications for locked plating include periarticular fractures, typically those with metaphyseal comminution. (10.5435/00124635-200407000-00001)
  • [Case_report] The author recommends that two screws be used in these situations. (10.2106/00004623-199303000-00014)
  • [L5] According to current best evidence, there is no advantage of open reduction internal fixation over percutaneous pinning. (10.1016/j.jhsa.2015.05.017)
  • [L4] The authors question the use of percutaneous fixation in these types of fractures and suggest that complications could have been potentially avoidable with conventional debridement, lavage, and stabilisation with methods such as external fixation. (10.1016/j.injury.2004.11.013)
  • [L4] This technique obviates the need for complex open reduction and internal fixation or an uncomfortable external fixator, giving good functional results with a readily available cheaper implant. (10.1177/1753193417718417)
  • [L4] LCP external fixation is an unconventional alternative to traditional external fixation that may be of benefit in carefully selected cases of fractures and nonunions, though it is not without its own unique set of complications requiring close clinical and radiological follow-up. (10.1186/1749-799x-5-19)
  • [L4] Radiological fracture union occurred in all patients at a mean of 5 weeks. (10.1177/17531934211009684)
  • [L4] The majority of patients underwent early operative intervention with percutaneous fixation, and antibiotics were usually discontinued within 24 hours. (10.1177/1558944717697432)
  • [L4] Mechanical solutions to minimize force required at the wrist to activate grip are still required. (10.1016/j.jht.2020.04.005)
  • [L4] The results in our clinical case-series highlight the challenges raised by percutaneous ilio-sacral screw fixation. (10.1016/j.otsr.2013.08.010)
  • [L4] The device provides a reliable method for MCP arthrodesis with rapid and consistent bony fusion, strong fixation allowing simplified rehabilitation, and avoidance of soft tissue irritation or hardware removal. (10.1007/s11552-013-9579-5)
  • [L5] Management of hand fractures involves balancing the prevention of stiffness through early motion with the avoidance of deformity via adequate reduction and stabilization. (10.1016/j.jhsa.2016.03.007)
  • [L5] Halo fixation can provide adequate rigidity for other clinical problems if the biomechanical requirements of the pathology and the limitations of the various halo-jacket constructs are understood. (10.2106/00004623-198668030-00001)
  • [L4] Excellent results may be obtained providing some technical points are carefully followed during application of the fixator. (10.1177/1753193409359493)
  • [L5] The authors caution against prescribing any single method for fixing a particular type of fracture, recommending an individualised management strategy that considers fracture configuration, surgeon and patient preferences, and likely patient compliance. (10.1177/1753193411433386)
  • [L5] The authors express concerns regarding the safety and application of posterolateral plating for distal tibial fractures, specifically questioning the management of open wounds, the classification of wound complications, the use of the technique for Type 42 fractures, the impact of supplementary fixation on non-union rates, and the potential for symptomatic implants due to inadequate plate fit. (10.1016/j.injury.2020.05.013)
  • [L4] While general outcomes were good, thumb ray dysfunction in sensibility and mobility remained the main functional disability. (10.1177/1753193412468577)
  • [L4] The general outcome was good hand function with few complications. (10.1186/1749-799x-6-37)
  • [L5] Standard locking systems provide the greatest resistance to rotational failure at the screw/plate interface compared with variable angle locking systems. (10.1016/j.injury.2016.06.001)
  • [L4] Both methods can obtain a good range of motion at the proximal interphalangeal joint. (10.1177/17531934211059300)
  • [L5] This article highlights the basic dimensions of commonly used headless screws, stand-alone lag screws, non-locking and locking screws for plating, and biocomposite screws to codify their dimensions into a readily available reference chart for the treatment of bone of varying dimensions. (10.1016/j.jhsa.2014.11.012)
  • [L4] Plate fixation is safe and reliable for closed multiple metacarpal fractures with consistently reproducible outcomes, particularly when fracture patterns are unsuitable for screw fixation alone. (10.1177/1753193409105451)
  • [L4] Plate fixation in closed multiple metacarpal fractures is a safe, reliable and consistently reproducible treatment method. (10.1177/1753193408090101)
  • [L4] Screw arthrodesis demonstrated a lower nonunion rate than wire fusion, but the existing data have significant limitations and further research would be beneficial. (10.1177/1558944721998019)
  • [L4] The authors conclude that open reduction and internal fixation with intramedullary devices is a simple method that provides excellent results in terms of healing and function without undue risk of non-union or postoperative infection when indicated. (10.2106/00004623-198163010-00019)
  • [Paper] The design allows the surgeon to choose between compression plate and internal fixator anchorage depending on the fracture type and bone quality. (10.1016/j.injury.2003.09.020)
  • [Commentary] The authors argue that the benefits of screw fixation do not outweigh the cost of frequent reoperation, as the study design fails to demonstrate superiority over K-wire fixation in a clinically meaningful way. (10.1016/j.jhsa.2015.08.021)
  • [L5] The Plate-screw model demonstrated superior biomechanical stability, making it the most suitable fixation method among those studied. (10.1186/s13018-025-05481-0)
  • [L2] Non-operative treatment does not appear to be a reliable way of treating an incomplete fracture: prophylactic intramedullary nailing should be considered if the patient is in intractable pain. (10.1302/0301-620x.99b3.bjj-2016-0276.r2)
  • [L4] Mg screws demonstrate potential benefits for bioabsorbable fixation, but findings indicate a high rate of complications, including non-union and screw instability, in scaphoid fractures. (10.1186/s13018-025-05701-7)
  • [L5] The majority of hand fractures can be treated without surgery, though surgery offers distinct advantages in properly selected cases. (10.1016/j.jhsa.2013.02.017)
  • [L1] The hypothesis that screw fixation provides sufficient stability was not confirmed. (10.1016/j.otsr.2009.11.016)
  • [L4] Ballistic injuries to the hand are frequently associated with fractures and neurovascular and tendon injuries. (10.1177/15589447221092111)
  • [L4] K-wire fixation led to a 20% non-union rate, and as a result, the senior author no longer uses this method of fixation. (10.1177/1753193414537758)
  • [Paper] Infected non-union is a devastating complication requiring complex reconstruction surgery with unpredictable outcomes. (10.1016/j.injury.2015.08.009)
  • [L4] Open reduction and interfragmentary screw fixation is an effective treatment modality for symptomatic non-union of distal phalangeal fractures with minimal morbidity, resulting in union and normal function in all patients. (10.1177/1753193407087866)
  • [L5] Using shorter plates and using bicortical nonlocking screws reduced overall construct stiffness. (10.1186/s12891-021-04341-2)
  • [L3] Long-term patient reported outcomes following displaced Bennett's fractures treated by closed reduction and K-wire fixation show excellent functional results and a high level of patient satisfaction. (10.1302/0301-620x.97b7.35493)
  • [L4] The technique with non-metal fixation may be a useful surgical option as it provides fixation without displacement, involves less soft tissue dissection, and results in almost non-existent flexion contracture. (10.1177/1753193418768139)
  • [L5] Non-locking plates are appropriate for most metacarpal and phalangeal fractures necessitating plate fixation. (10.1016/j.jhsa.2011.09.023)
  • [L3] Both absorbable pins and mini-screws provided adequate strength and rigidity, allowing good clinical and functional scores at a mid-term follow-up. (10.1186/s12891-018-2014-x)
  • [L4] The presence of residual radiolucency is an important contraindication to removing the plate. (10.2106/00004623-199072010-00028)
  • [L4] Fusion was avoided in 10/11 patients with generally significant improvement in alignment and function, even in the setting of infected nonunion. (10.1016/s0363-5023(12)60035-5)
  • [L4] The new fixation device (TomoFix) allows stable fixation of the osteotomy without bone grafting. (10.1016/j.injury.2003.09.028)
  • [Paper] At short time follow-up, treatment of Pauwels type 3 femoral neck fractures using cannulated screws combined with medial buttress plate improves the fracture union rate compared to historical series using cannulated screws alone. (10.1016/j.injury.2017.08.017)
  • [L4] Our rate of fusion compares favorably with prior series using other methods of fixation. (10.1016/j.jhsa.2013.09.040)
  • [Paper] Standard radiographs (ap/outlet), especially in internal rotation, may miss nearly half of screw cut outs. (10.1016/j.injury.2014.05.025)
  • [L3] Both extension block pinning and hook plate fixation give good results. (10.1177/1753193415581517)
  • [L4] All patients achieved complete union at the fusion site at a mean of 9 weeks and reported pain relief. (10.1016/j.jhsa.2014.10.020)

See Also

References

[1] What Else Can We Use? Alternative Fixation Methods of the Volar Lunate Facet Fracture of the Distal Radius. Journal of Hand Surgery Global Online. 2025. DOI: 10.1016/j.jhsg.2025.100738

[2] Limits of internal fixation in long-bone fracture. Orthopaedics & Traumatology: Surgery & Research. 2017. DOI: 10.1016/j.otsr.2016.11.006

[3] External Fixation Before Planned Conversion to Internal Fixation in Orthopaedic Trauma: Controversies and Current Trends. Journal of the American Academy of Orthopaedic Surgeons. 2024. DOI: 10.5435/jaaos-d-23-01256

[4] The Use of Locking Plates in Fracture Care. Journal of the American Academy of Orthopaedic Surgeons. 2006. DOI: 10.5435/00124635-200603000-00009

[5] A Biomechanical Study of 3 Types of Scaphoid Fixation in a Fracture Non-union Model. The Journal of Hand Surgery. 2016. DOI: 10.1016/j.jhsa.2016.07.052

[6] Locked Plating in Orthopaedic Trauma: A Clinical Update. Journal of the American Academy of Orthopaedic Surgeons. 2008. DOI: 10.5435/00124635-200806000-00007

[7] Patient-Reported Outcomes and Complications After Surgical Fixation of 143 Proximal Phalanx Fractures. The Journal of Hand Surgery. 2020. DOI: 10.1016/j.jhsa.2019.08.010

[8] Metaphyseal locking plate as an external fixator for open tibial fracture: Clinical outcomes and biomechanical assessment. Injury. 2017. DOI: 10.1016/j.injury.2016.11.031

[9] Accuracy in Screw Selection in a Cadaveric, Small-Bone Fracture Model. The Journal of Hand Surgery. 2018. DOI: 10.1016/j.jhsa.2018.04.011

[10] Paediatric hand fractures. Journal of Hand Surgery (European Volume). 2013. DOI: 10.1177/1753193412475045

[11] Segmental tibial fractures: an assessment of procedures in 27 cases [Manuscript Injury 34 (2003) 756]. Injury. 2004. DOI: 10.1016/j.injury.2004.01.012

[12] Guidelines for the clinical application of the LCP. Injury. 2003. DOI: 10.1016/j.injury.2003.09.026

[13] Can low-profile double-plate osteosynthesis for olecranon fractures reduce implant removal? A retrospective multicenter study. Journal of Shoulder and Elbow Surgery. 2020. DOI: 10.1016/j.jse.2020.01.091

[14] Open reduction and internal fixation of humeral shaft fractures. Results using AO plating techniques.. The Journal of Bone & Joint Surgery. 1986. DOI: 10.2106/00004623-198668030-00018

[15] A Comparison of Locking Plates and Intramedullary Pinning for Fixation of Metacarpal Shaft Fractures. HAND. 2018. DOI: 10.1177/1558944718798854

[16] Routine use of Locking Shaft Screws is not Necessary in Volar Plate Fixation of Distal Radius Fractures. HAND. 2015. DOI: 10.1007/s11552-014-9722-y

[17] Percutaneous Pinning of Fractures in the Proximal Third of the Proximal Phalanx: Complications and Outcomes. The Journal of Hand Surgery. 2012. DOI: 10.1016/j.jhsa.2012.04.019

[18] Avulsion Fractures from the Base of the Proximal Phalanges of the Fingers. Journal of Hand Surgery. 2003. DOI: 10.1054/jhsb.2002.0842

[19] Innovations in Locking Plate Technology. Journal of the American Academy of Orthopaedic Surgeons. 2004. DOI: 10.5435/00124635-200407000-00001

[20] Progression of a slipped capital femoral epiphysis after fixation with a single cannulated screw. A case report.. The Journal of Bone & Joint Surgery. 1993. DOI: 10.2106/00004623-199303000-00014

[21] Bennett Fracture. The Journal of Hand Surgery. 2015. DOI: 10.1016/j.jhsa.2015.05.017

[23] WICKSTROM, JACK. The Journal of Bone and Joint Surgery. American Volume. 1964.

[24] Bridge plate osteosynthesis of humeral shaft fractures. Injury. 2005. DOI: 10.1016/j.injury.2004.11.013

[25] A method of treating comminuted phalangeal fractures by ligamentotaxis using a single Kirschner wire. Journal of Hand Surgery (European Volume). 2017. DOI: 10.1177/1753193417718417

[27] LCP external fixation - External application of an internal fixator: two cases and a review of the literature. Journal of Orthopaedic Surgery and Research. 2010. DOI: 10.1186/1749-799x-5-19

[28] Extended indications for retrograde intramedullary cannulated headless screws for proximal phalanx fractures. Journal of Hand Surgery (European Volume). 2021. DOI: 10.1177/17531934211009684

[29] Current Trends in the Management of Ballistic Fractures of the Hand and Wrist: Experiences of a High-Volume Level I Trauma Center. HAND. 2017. DOI: 10.1177/1558944717697432

[30] 3D-printed custom-designed prostheses for partial hand amputation: Mechanical challenges still exist. Journal of Hand Therapy. 2021. DOI: 10.1016/j.jht.2020.04.005

[31] Chapter 29 Hand/Carpal Fractures and Dislocations. 2021.

[32] Percutaneous ilio-sacral screw insertion. Fluoroscopic techniques. Orthopaedics & Traumatology: Surgery & Research. 2013. DOI: 10.1016/j.otsr.2013.08.010

[33] MCP Arthrodesis Using an Intramedullary Interlocking Device. HAND. 2013. DOI: 10.1007/s11552-013-9579-5

[34] Hand Fractures: Indications, the Tried and True and New Innovations. The Journal of Hand Surgery. 2016. DOI: 10.1016/j.jhsa.2016.03.007

[35] The Halo External Fixator. The Journal of Bone & Joint Surgery. 1986. DOI: 10.2106/00004623-198668030-00001

[36] Pins and Rubber Traction System for Intra-Articular Proximal Interphalangeal Joint Fractures Revisited. Journal of Hand Surgery (European Volume). 2010. DOI: 10.1177/1753193409359493

[38] Re: Al-Qattan MM. Displaced unstable transverse fractures of the shaft of the proximal phalanx of the fingers in industrial workers: reduction and K-wire fixation leaving the metacarpophalangeal and proximal interphalangeal joints free. J Hand Surg Eur. 2011, 36: 577–583. Journal of Hand Surgery (European Volume). 2012. DOI: 10.1177/1753193411433386

[39] Concerns regarding the posterolateral plating as a safe alternative for the treatment of distal tibial fractures. Injury. 2020. DOI: 10.1016/j.injury.2020.05.013

[40] The exploded hand syndrome: a report of five industrial injury cases. Journal of Hand Surgery (European Volume). 2012. DOI: 10.1177/1753193412468577

[42] Percutaneous elastic intramedullary nailing of metacarpal fractures: Surgical technique and clinical results study. Journal of Orthopaedic Surgery and Research. 2011. DOI: 10.1186/1749-799x-6-37

[44] The biomechanical cost of variable angle locking screws. Injury. 2016. DOI: 10.1016/j.injury.2016.06.001

[45] Volar plating versus external fixation for unstable dorsal fracture-dislocations of the proximal interphalangeal joint. Journal of Hand Surgery (European Volume). 2021. DOI: 10.1177/17531934211059300

[46] Nuts and Bolts: Dimensions of Commonly Utilized Screws in Upper Extremity Surgery. The Journal of Hand Surgery. 2015. DOI: 10.1016/j.jhsa.2014.11.012

[48] Re: Souer JS, Mudgal CS. Plate fixation in closed ipsilateral multiple metacarpal fractures. J Hand Surg Eur. 2008, 33: 740–4. Journal of Hand Surgery (European Volume). 2009. DOI: 10.1177/1753193409105451

[49] 9. Hand Surgery. 2013.

[51] Plate Fixation in Closed Ipsilateral Multiple Metacarpal Fractures. Journal of Hand Surgery (European Volume). 2008. DOI: 10.1177/1753193408090101

[52] Chapter 95 Hand Trauma. 2019.

[54] Proximal Interphalangeal Joint Arthrodesis Techniques: A Systematic Review. HAND. 2021. DOI: 10.1177/1558944721998019

[56] Open reduction and internal fixation of clavicular fractures.. The Journal of Bone & Joint Surgery. 1981. DOI: 10.2106/00004623-198163010-00019

[57] Chapter 54 Pediatric Forearm, Wrist, and Hand Trauma. 2020.

[58] Development of the Locking Compression Plate. Injury. 2003. DOI: 10.1016/j.injury.2003.09.020

[59] Commentary on “A Comparison of K-Wire Versus Screw Fixation on the Outcomes of Distal Phalanx Fractures”. The Journal of Hand Surgery. 2015. DOI: 10.1016/j.jhsa.2015.08.021

[60] Biomechanical insights through finite element analysis of Bennett fracture fixation: a comparative study of four surgical techniques. Journal of Orthopaedic Surgery and Research. 2025. DOI: 10.1186/s13018-025-05481-0

[62] Atypical femoral fractures related to bisphosphonate treatment. The Bone & Joint Journal. 2017. DOI: 10.1302/0301-620x.99b3.bjj-2016-0276.r2

[63] High rate of failure after magnesium bioabsorbable compression screw fixation for scaphoid fractures. Journal of Orthopaedic Surgery and Research. 2025. DOI: 10.1186/s13018-025-05701-7

[64] Hand Fractures: A Review of Current Treatment Strategies. The Journal of Hand Surgery. 2013. DOI: 10.1016/j.jhsa.2013.02.017

[65] Biomechanical comparison of plate-screw and screw fixation in medial tibial plateau fractures (Schatzker 4). A model study. Orthopaedics & Traumatology: Surgery & Research. 2010. DOI: 10.1016/j.otsr.2009.11.016

[66] Outcomes in Ballistic Injuries to the Hand: Fractures and Nerve/Tendon Damage as Predictors of Poor Outcomes. HAND. 2022. DOI: 10.1177/15589447221092111

[68] Nonunion after trapeziometacarpal arthrodesis: comparison between K-wire and internal fixation. Journal of Hand Surgery (European Volume). 2014. DOI: 10.1177/1753193414537758

[69] Surgical management of infected non-unions: An update. Injury. 2015. DOI: 10.1016/j.injury.2015.08.009

[70] OPEN REDUCTION AND INTERFRAGMENTARY SCREW FIXATION FOR SYMPTOMATIC NONUNION OF DISTAL PHALANGEAL FRACTURES. Journal of Hand Surgery (European Volume). 2008. DOI: 10.1177/1753193407087866

[71] The effect of surgeon-controlled variables on construct stiffness in lateral locked plating of distal femoral fractures. BMC Musculoskeletal Disorders. 2021. DOI: 10.1186/s12891-021-04341-2

[72] Long-term patient-reported outcomes following Bennett’s fractures. The Bone & Joint Journal. 2015. DOI: 10.1302/0301-620x.97b7.35493

[73] Pullout suture using polyamide monofilaments for volar plate avulsion fractures of the proximal interphalangeal joint. Journal of Hand Surgery (European Volume). 2018. DOI: 10.1177/1753193418768139

[74] Non-Locked and Locked Plating Technology for Hand Fractures. The Journal of Hand Surgery. 2011. DOI: 10.1016/j.jhsa.2011.09.023

[75] Comparison between absorbable pins and mini-screw fixations for the treatment of radial head fractures Mason type II-III. BMC Musculoskeletal Disorders. 2018. DOI: 10.1186/s12891-018-2014-x

[76] Refracture of bones of the forearm after the removal of compression plates.. The Journal of Bone & Joint Surgery. 1990. DOI: 10.2106/00004623-199072010-00028

[78] Salvage of Failed Instrumentation of the Distal Radius with Spanning Dorsal Distraction Plating. The Journal of Hand Surgery. 2012. DOI: 10.1016/s0363-5023(12)60035-5

[80] Foreign language abstracts. Injury. 2003. DOI: 10.1016/j.injury.2003.09.028

[81] Medial buttress plate augmentation of cannulated screw fixation in vertically unstable femoral neck fractures: Surgical technique and preliminary results. Injury. 2017. DOI: 10.1016/j.injury.2017.08.017

[82] Arthrodesis of the Thumb Interphalangeal Joint and Finger Distal Interphalangeal Joints With a Headless Compression Screw. The Journal of Hand Surgery. 2014. DOI: 10.1016/j.jhsa.2013.09.040

[83] How many radiographs are needed to detect angular stable head screw cut outs of the proximal humerus – A cadaver study. Injury. 2014. DOI: 10.1016/j.injury.2014.05.025

[84] Clinical comparison of hook plate fixation versus extension block pinning for bony mallet finger: a retrospective comparison study. Journal of Hand Surgery (European Volume). 2015. DOI: 10.1177/1753193415581517

[85] Minimally Invasive Thumb Carpometacarpal Joint Arthrodesis With Headless Screws and Arthroscopic Assistance. The Journal of Hand Surgery. 2015. DOI: 10.1016/j.jhsa.2014.10.020

Creative Commons BY-NC 4.0

CC Creative Commons licence
BY Attribution — you must credit the source
NC NonCommercial — not for commercial use

Attribution-NonCommercial 4.0 International


Creative Commons Corporation ("Creative Commons") is not a law firm and does not provide legal services or legal advice. Distribution of Creative Commons public licenses does not create a lawyer-client or other relationship. Creative Commons makes its licenses and related information available on an "as-is" basis. Creative Commons gives no warranties regarding its licenses, any material licensed under their terms and conditions, or any related information. Creative Commons disclaims all liability for damages resulting from their use to the fullest extent possible.

Using Creative Commons Public Licenses

Creative Commons public licenses provide a standard set of terms and conditions that creators and other rights holders may use to share original works of authorship and other material subject to copyright and certain other rights specified in the public license below. The following considerations are for informational purposes only, are not exhaustive, and do not form part of our licenses.

Considerations for licensors: Our public licenses are intended for use by those authorized to give the public permission to use material in ways otherwise restricted by copyright and certain other rights. Our licenses are irrevocable. Licensors should read and understand the terms and conditions of the license they choose before applying it. Licensors should also secure all rights necessary before applying our licenses so that the public can reuse the material as expected. Licensors should clearly mark any material not subject to the license. This includes other CC- licensed material, or material used under an exception or limitation to copyright. More considerations for licensors: wiki.creativecommons.org/Considerations_for_licensors

Considerations for the public: By using one of our public licenses, a licensor grants the public permission to use the licensed material under specified terms and conditions. If the licensor's permission is not necessary for any reason--for example, because of any applicable exception or limitation to copyright--then that use is not regulated by the license. Our licenses grant only permissions under copyright and certain other rights that a licensor has authority to grant. Use of the licensed material may still be restricted for other reasons, including because others have copyright or other rights in the material. A licensor may make special requests, such as asking that all changes be marked or described. Although not required by our licenses, you are encouraged to respect those requests where reasonable. More considerations for the public: wiki.creativecommons.org/Considerations_for_licensees


Creative Commons Attribution-NonCommercial 4.0 International Public License

By exercising the Licensed Rights (defined below), You accept and agree to be bound by the terms and conditions of this Creative Commons Attribution-NonCommercial 4.0 International Public License ("Public License"). To the extent this Public License may be interpreted as a contract, You are granted the Licensed Rights in consideration of Your acceptance of these terms and conditions, and the Licensor grants You such rights in consideration of benefits the Licensor receives from making the Licensed Material available under these terms and conditions.

Section 1 -- Definitions.

a. Adapted Material means material subject to Copyright and Similar Rights that is derived from or based upon the Licensed Material and in which the Licensed Material is translated, altered, arranged, transformed, or otherwise modified in a manner requiring permission under the Copyright and Similar Rights held by the Licensor. For purposes of this Public License, where the Licensed Material is a musical work, performance, or sound recording, Adapted Material is always produced where the Licensed Material is synched in timed relation with a moving image.

b. Adapter's License means the license You apply to Your Copyright and Similar Rights in Your contributions to Adapted Material in accordance with the terms and conditions of this Public License.

c. Copyright and Similar Rights means copyright and/or similar rights closely related to copyright including, without limitation, performance, broadcast, sound recording, and Sui Generis Database Rights, without regard to how the rights are labeled or categorized. For purposes of this Public License, the rights specified in Section 2(b)(1)-(2) are not Copyright and Similar Rights.

d. Effective Technological Measures means those measures that, in the absence of proper authority, may not be circumvented under laws fulfilling obligations under Article 11 of the WIPO Copyright Treaty adopted on December 20, 1996, and/or similar international agreements.

e. Exceptions and Limitations means fair use, fair dealing, and/or any other exception or limitation to Copyright and Similar Rights that applies to Your use of the Licensed Material.

f. Licensed Material means the artistic or literary work, database, or other material to which the Licensor applied this Public License.

g. Licensed Rights means the rights granted to You subject to the terms and conditions of this Public License, which are limited to all Copyright and Similar Rights that apply to Your use of the Licensed Material and that the Licensor has authority to license.

h. Licensor means the individual(s) or entity(ies) granting rights under this Public License.

i. NonCommercial means not primarily intended for or directed towards commercial advantage or monetary compensation. For purposes of this Public License, the exchange of the Licensed Material for other material subject to Copyright and Similar Rights by digital file-sharing or similar means is NonCommercial provided there is no payment of monetary compensation in connection with the exchange.

j. Share means to provide material to the public by any means or process that requires permission under the Licensed Rights, such as reproduction, public display, public performance, distribution, dissemination, communication, or importation, and to make material available to the public including in ways that members of the public may access the material from a place and at a time individually chosen by them.

k. Sui Generis Database Rights means rights other than copyright resulting from Directive 96/9/EC of the European Parliament and of the Council of 11 March 1996 on the legal protection of databases, as amended and/or succeeded, as well as other essentially equivalent rights anywhere in the world.

l. You means the individual or entity exercising the Licensed Rights under this Public License. Your has a corresponding meaning.

Section 2 -- Scope.

a. License grant.

1. Subject to the terms and conditions of this Public License, the Licensor hereby grants You a worldwide, royalty-free, non-sublicensable, non-exclusive, irrevocable license to exercise the Licensed Rights in the Licensed Material to:

a. reproduce and Share the Licensed Material, in whole or in part, for NonCommercial purposes only; and

b. produce, reproduce, and Share Adapted Material for NonCommercial purposes only.

2. Exceptions and Limitations. For the avoidance of doubt, where Exceptions and Limitations apply to Your use, this Public License does not apply, and You do not need to comply with its terms and conditions.

3. Term. The term of this Public License is specified in Section 6(a).

4. Media and formats; technical modifications allowed. The Licensor authorizes You to exercise the Licensed Rights in all media and formats whether now known or hereafter created, and to make technical modifications necessary to do so. The Licensor waives and/or agrees not to assert any right or authority to forbid You from making technical modifications necessary to exercise the Licensed Rights, including technical modifications necessary to circumvent Effective Technological Measures. For purposes of this Public License, simply making modifications authorized by this Section 2(a) (4) never produces Adapted Material.

5. Downstream recipients.

a. Offer from the Licensor -- Licensed Material. Every recipient of the Licensed Material automatically receives an offer from the Licensor to exercise the Licensed Rights under the terms and conditions of this Public License.

b. No downstream restrictions. You may not offer or impose any additional or different terms or conditions on, or apply any Effective Technological Measures to, the Licensed Material if doing so restricts exercise of the Licensed Rights by any recipient of the Licensed Material.

6. No endorsement. Nothing in this Public License constitutes or may be construed as permission to assert or imply that You are, or that Your use of the Licensed Material is, connected with, or sponsored, endorsed, or granted official status by, the Licensor or others designated to receive attribution as provided in Section 3(a)(1)(A)(i).

b. Other rights.

1. Moral rights, such as the right of integrity, are not licensed under this Public License, nor are publicity, privacy, and/or other similar personality rights; however, to the extent possible, the Licensor waives and/or agrees not to assert any such rights held by the Licensor to the limited extent necessary to allow You to exercise the Licensed Rights, but not otherwise.

2. Patent and trademark rights are not licensed under this Public License.

3. To the extent possible, the Licensor waives any right to collect royalties from You for the exercise of the Licensed Rights, whether directly or through a collecting society under any voluntary or waivable statutory or compulsory licensing scheme. In all other cases the Licensor expressly reserves any right to collect such royalties, including when the Licensed Material is used other than for NonCommercial purposes.

Section 3 -- License Conditions.

Your exercise of the Licensed Rights is expressly made subject to the following conditions.

a. Attribution.

1. If You Share the Licensed Material (including in modified form), You must:

a. retain the following if it is supplied by the Licensor with the Licensed Material:

i. identification of the creator(s) of the Licensed Material and any others designated to receive attribution, in any reasonable manner requested by the Licensor (including by pseudonym if designated);

ii. a copyright notice;

iii. a notice that refers to this Public License;

iv. a notice that refers to the disclaimer of warranties;

v. a URI or hyperlink to the Licensed Material to the extent reasonably practicable;

b. indicate if You modified the Licensed Material and retain an indication of any previous modifications; and

c. indicate the Licensed Material is licensed under this Public License, and include the text of, or the URI or hyperlink to, this Public License.

2. You may satisfy the conditions in Section 3(a)(1) in any reasonable manner based on the medium, means, and context in which You Share the Licensed Material. For example, it may be reasonable to satisfy the conditions by providing a URI or hyperlink to a resource that includes the required information.

3. If requested by the Licensor, You must remove any of the information required by Section 3(a)(1)(A) to the extent reasonably practicable.

4. If You Share Adapted Material You produce, the Adapter's License You apply must not prevent recipients of the Adapted Material from complying with this Public License.

Section 4 -- Sui Generis Database Rights.

Where the Licensed Rights include Sui Generis Database Rights that apply to Your use of the Licensed Material:

a. for the avoidance of doubt, Section 2(a)(1) grants You the right to extract, reuse, reproduce, and Share all or a substantial portion of the contents of the database for NonCommercial purposes only;

b. if You include all or a substantial portion of the database contents in a database in which You have Sui Generis Database Rights, then the database in which You have Sui Generis Database Rights (but not its individual contents) is Adapted Material; and

c. You must comply with the conditions in Section 3(a) if You Share all or a substantial portion of the contents of the database.

For the avoidance of doubt, this Section 4 supplements and does not replace Your obligations under this Public License where the Licensed Rights include other Copyright and Similar Rights.

Section 5 -- Disclaimer of Warranties and Limitation of Liability.

a. UNLESS OTHERWISE SEPARATELY UNDERTAKEN BY THE LICENSOR, TO THE EXTENT POSSIBLE, THE LICENSOR OFFERS THE LICENSED MATERIAL AS-IS AND AS-AVAILABLE, AND MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND CONCERNING THE LICENSED MATERIAL, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHER. THIS INCLUDES, WITHOUT LIMITATION, WARRANTIES OF TITLE, MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, ABSENCE OF LATENT OR OTHER DEFECTS, ACCURACY, OR THE PRESENCE OR ABSENCE OF ERRORS, WHETHER OR NOT KNOWN OR DISCOVERABLE. WHERE DISCLAIMERS OF WARRANTIES ARE NOT ALLOWED IN FULL OR IN PART, THIS DISCLAIMER MAY NOT APPLY TO YOU.

b. TO THE EXTENT POSSIBLE, IN NO EVENT WILL THE LICENSOR BE LIABLE TO YOU ON ANY LEGAL THEORY (INCLUDING, WITHOUT LIMITATION, NEGLIGENCE) OR OTHERWISE FOR ANY DIRECT, SPECIAL, INDIRECT, INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY, OR OTHER LOSSES, COSTS, EXPENSES, OR DAMAGES ARISING OUT OF THIS PUBLIC LICENSE OR USE OF THE LICENSED MATERIAL, EVEN IF THE LICENSOR HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH LOSSES, COSTS, EXPENSES, OR DAMAGES. WHERE A LIMITATION OF LIABILITY IS NOT ALLOWED IN FULL OR IN PART, THIS LIMITATION MAY NOT APPLY TO YOU.

c. The disclaimer of warranties and limitation of liability provided above shall be interpreted in a manner that, to the extent possible, most closely approximates an absolute disclaimer and waiver of all liability.

Section 6 -- Term and Termination.

a. This Public License applies for the term of the Copyright and Similar Rights licensed here. However, if You fail to comply with this Public License, then Your rights under this Public License terminate automatically.

b. Where Your right to use the Licensed Material has terminated under Section 6(a), it reinstates:

1. automatically as of the date the violation is cured, provided it is cured within 30 days of Your discovery of the violation; or

2. upon express reinstatement by the Licensor.

For the avoidance of doubt, this Section 6(b) does not affect any right the Licensor may have to seek remedies for Your violations of this Public License.

c. For the avoidance of doubt, the Licensor may also offer the Licensed Material under separate terms or conditions or stop distributing the Licensed Material at any time; however, doing so will not terminate this Public License.

d. Sections 1, 5, 6, 7, and 8 survive termination of this Public License.

Section 7 -- Other Terms and Conditions.

a. The Licensor shall not be bound by any additional or different terms or conditions communicated by You unless expressly agreed.

b. Any arrangements, understandings, or agreements regarding the Licensed Material not stated herein are separate from and independent of the terms and conditions of this Public License.

Section 8 -- Interpretation.

a. For the avoidance of doubt, this Public License does not, and shall not be interpreted to, reduce, limit, restrict, or impose conditions on any use of the Licensed Material that could lawfully be made without permission under this Public License.

b. To the extent possible, if any provision of this Public License is deemed unenforceable, it shall be automatically reformed to the minimum extent necessary to make it enforceable. If the provision cannot be reformed, it shall be severed from this Public License without affecting the enforceability of the remaining terms and conditions.

c. No term or condition of this Public License will be waived and no failure to comply consented to unless expressly agreed to by the Licensor.

d. Nothing in this Public License constitutes or may be interpreted as a limitation upon, or waiver of, any privileges and immunities that apply to the Licensor or You, including from the legal processes of any jurisdiction or authority.


Creative Commons is not a party to its public licenses. Notwithstanding, Creative Commons may elect to apply one of its public licenses to material it publishes and in those instances will be considered the “Licensor.” The text of the Creative Commons public licenses is dedicated to the public domain under the CC0 Public Domain Dedication. Except for the limited purpose of indicating that material is shared under a Creative Commons public license or as otherwise permitted by the Creative Commons policies published at creativecommons.org/policies, Creative Commons does not authorize the use of the trademark "Creative Commons" or any other trademark or logo of Creative Commons without its prior written consent including, without limitation, in connection with any unauthorized modifications to any of its public licenses or any other arrangements, understandings, or agreements concerning use of licensed material. For the avoidance of doubt, this paragraph does not form part of the public licenses.

Creative Commons may be contacted at creativecommons.org.