What's New — Spine — November 2025¶

32 new articles published this month.

Themes: Biomechanics and Implant Mechanics · Disc Degeneration and Molecular Mechanisms · Surgical Techniques and Technology · Scoliosis Management and Screening · Osteoporosis and Bone Health · Epidemiology, Outcomes, and Rehabilitation

Digest generated 2026-04-16 00:31:26+00:00.

Highlights¶

Biomechanics and Implant Mechanics¶

Recent studies have significantly advanced the understanding of spinal biomechanics and implant performance through finite element analysis and in vitro testing. Research by Inoue et al. [2] and Jin et al. [4] utilized finite element models to clarify mechanical stress distributions in rod fractures and the rational development of cervical kyphosis, respectively. In the realm of implants, Chin et al. [9] compared wear particles between viscoelastic discs and total disc replacements, highlighting inflammation risks. Furthermore, Ribeiro et al. [15] evaluated the segmental range of motion in vertebral body tethering constructs, demonstrating their ability to preserve mobility. These investigations provide critical data for optimizing surgical techniques and designing next-generation spinal devices [2, 4, 9, 15].

Disc Degeneration and Molecular Mechanisms¶

A cluster of articles this month focuses on the molecular pathophysiology of intervertebral disc degeneration and novel therapeutic targets. Qu et al. [6] and Yang et al. [27] identified specific microRNAs (miR-302a-3p and miR-191-5p) that mitigate degeneration and inflammation by regulating key signaling pathways like EPHA2 and EGR1. Wang et al. [10] further explored the protective role of targeting ICAM1 against pyroptosis in nucleus pulposus cells. On the translational side, Ye et al. [16] provided transcriptomic insights into the anti-apoptotic effects of Tuina therapy in rabbit models. Additionally, Ahmadifard et al. [25] investigated the clinical prevalence of Modic changes in low back pain patients, linking imaging findings to degenerative status [6, 10, 16, 25, 27].

Surgical Techniques and Technology¶

This theme encompasses advancements in surgical approaches, robotics, and intraoperative monitoring. Lewandrowski et al. [8] reviewed the current evidence and practice of endoscopic spine surgery, emphasizing patient selection and the learning curve. Etigunta et al. [12] demonstrated that standardized safety protocols significantly reduce complications in robot-assisted spine surgery. In cervical procedures, Chen et al. [29] compared ultrasonic osteotomes to high-speed burrs for keyhole technology, while Wang et al. [20] showed that force-limited nerve root retractors combined with neurophysiological monitoring reduce L5 radiculitis in PLIF. Cheng et al. [19] also introduced a novel technique for assessing coronal alignment during deformity surgery, reflecting a trend toward precision and safety [8, 12, 19, 20, 29].

Scoliosis Management and Screening¶

Articles in this group address the spectrum of scoliosis care, from congenital anomalies to adolescent screening. Brooks et al. [22] outlined modern approaches for congenital scoliosis, stressing the importance of growth modulation and associated anomaly screening. Zhang et al. [1] reported on surgical outcomes for congenital upper thoracic scoliosis with long-term follow-up. For adolescent idiopathic scoliosis, Giray et al. [5] evaluated the reliability of AI chatbots in answering patient queries, while Kwan et al. [32] proposed ultrasound curve angle measurement as a superior alternative to spinous process angle for reducing unnecessary radiography in school screenings. Xu et al. [7] further distinguished clinical characteristics of thoracolumbar disc herniation in Scheuermann's disease across age groups [1, 5, 7, 22, 32].

Osteoporosis and Bone Health¶

Several studies this month focus on bone density, osteoporosis risk factors, and fracture management. Tan et al. [18] developed a bone density-based aging model to predict osteoporosis risk in a community cohort. Qin et al. [21] explored the complex relationship between serum uric acid and bone mineral density in men with type 2 diabetes across different BMI categories. Zhang et al. [23] compared the efficacy of denosumab versus alendronate in preventing vertebral compression fractures in breast cancer patients on aromatase inhibitors. Fan et al. [26] analyzed the impact of vertebral bone quality scores and muscle mass on multiple osteoporotic fractures. Finally, Dong et al. [31] investigated the role of odontoid base hypodensity in type II fracture risk and nonunion [18, 21, 23, 26, 31].

Epidemiology, Outcomes, and Rehabilitation¶

This theme covers population-level trends, clinical outcomes, and non-surgical interventions. Russo et al. [14] analyzed 22 years of hospitalization data for lumbar disc degeneration in Italy, revealing shifting surgical trends. Rantalaiho et al. [28] compared randomized trial evidence with real-world registry data for lumbar disc herniation surgery, highlighting gaps in applicability. Jamshidian et al. [30] used musculoskeletal modeling to assess how walking speed influences spinal loads. Özalp et al. [11] assessed the benefits of cervical stabilization exercises on balance in forward head posture. Lastly, Li et al. [17] reported on the safety and efficacy of bezeotermin alfa in lumbar interbody fusion, adding to the evidence base for biological augmentation [11, 14, 17, 28, 30].

Articles by Theme¶

Biomechanics and Implant Mechanics (4)¶

2. Inoue T, Kumano Y, Sugaya J, et al. Mechanical stress on the rod in posterior spinal fusion with and without rod fracture: a finite element analysis. BMC Musculoskeletal Disorders 2025. doi:10.1186/s12891-025-09377-2

Researchers utilized finite element analysis to compare mechanical stress on rods and intervertebral discs in lumbar fusion models with and without unilateral rod fractures under various loading conditions. The key finding identified specific spinal motion directions that significantly increase stress on the remaining rod and adjacent discs in fractured constructs. Clinically, this highlights the need to limit high-stress movements post-operatively and informs the design of more robust fixation strategies to prevent re-fracture.

4. Jin F, Li J, Liu Z, et al. Biomechanical rational for development of cervical kyphosis deformity: a finite element analysis. BMC Musculoskeletal Disorders 2025. doi:10.1186/s12891-025-09285-5

A finite element analysis was conducted to investigate the biomechanical mechanisms driving the development of cervical kyphosis deformity. The study likely identified specific loading patterns or structural failures that contribute to the loss of cervical lordosis. These insights provide a theoretical basis for developing targeted preventive strategies and surgical corrections to halt or reverse kyphotic progression.

9. Chin KR, Chebrolu S, Sung RD, et al. Comparative in Vitro Analysis of Wear Particles Generated by a Viscoelastic Disc Versus 2 Articulating Total Disc Replacements. Journal of Bone and Joint Surgery 2025. doi:10.2106/jbjs.25.00594

Researchers conducted in vitro wear testing on a viscoelastic total disc replacement (VTDR) device and compared its wear particle characteristics against two established total disc replacements using FDA data. The study found that the VTDR generated significantly fewer submicron wear particles, which are known to trigger inflammatory responses and osteolysis. These findings suggest that viscoelastic designs may offer a safer profile by reducing the risk of implant loosening and failure associated with wear debris.

15. Ribeiro M, Fancello EA, Seggewiß J, et al. Segmental range of motion of vertebral body tethering: an in-vitro analysis of single-tether, double-tether, and hybrid constructs. Journal of Orthopaedic Surgery and Research 2025. doi:10.1186/s13018-025-06455-y

An in vitro biomechanical study examined the segmental range of motion (ROM) preserved by single-tether, double-tether, and hybrid vertebral body tethering (VBT) constructs in human spine samples. Results demonstrated that single and double-tether constructs preserved the majority of native ROM in flexion-extension and axial rotation, whereas hybrid constructs significantly restricted lateral bending. The study provides biomechanical evidence that tether configuration critically influences motion preservation, guiding surgical planning for adolescent idiopathic scoliosis.

Disc Degeneration and Molecular Mechanisms (5)¶

6. Qu W, Liao L, Wang G, et al. miR-302a-3p mitigates intervertebral disc degeneration progression through regulating EPHA2. Journal of Orthopaedic Surgery and Research 2025. doi:10.1186/s13018-025-06449-w

Researchers investigated the role of miR-302a-3p in mitigating intervertebral disc degeneration by regulating the EPHA2 pathway. The study demonstrated that upregulation of this microRNA significantly reduced degenerative markers and preserved disc structure in experimental models. This discovery identifies a potential molecular therapeutic target for slowing or reversing disc degeneration in clinical settings.

10. Wang Z, Liu J, Xu H, et al. Targeting ICAM1 through LIF-mediated NF-κB/JAK2-STAT3 crosstalk protects nucleus pulposus from IL-1β-driven pyroptosis to ameliorate intervertebral disc degeneration. Journal of Orthopaedic Surgery and Research 2025. doi:10.1186/s13018-025-06494-5

This study investigated the molecular mechanisms by which Leukemia Inhibitory Factor (LIF) protects nucleus pulposus cells from IL-1β-induced pyroptosis via the NF-κB/JAK2-STAT3 pathway targeting ICAM1. The key finding was that LIF-mediated suppression of ICAM1 effectively inhibited cell death and mitigated intervertebral disc degeneration in experimental models. Clinically, this identifies the LIF-ICAM1 axis as a potential therapeutic target for halting disc degeneration progression.

16. Ye J, Zhu J, Kuang K, et al. Transcriptomic insights into the anti-apoptotic effect of Tuina in rabbit model of intervertebral disc degeneration. Journal of Orthopaedic Surgery and Research 2025. doi:10.1186/s13018-025-06390-y

This study utilized transcriptomic analysis to explore the anti-apoptotic mechanisms of Tuina therapy in a rabbit model of intervertebral disc degeneration. The research identified specific gene expression changes associated with reduced apoptosis and enhanced cell survival in the nucleus pulposus following Tuina treatment. These findings offer molecular evidence supporting Tuina as a viable non-invasive therapeutic strategy for mitigating disc degeneration.

25. Ahmadifard H, Khatibzade-Nasari N, Baghestani-Koozehgar R, et al. Prevalence of modic changes in patients with low back pain and association with degenerative spinal findings: a retrospective MRI study. BMC Musculoskeletal Disorders 2025. doi:10.1186/s12891-025-09182-x

This retrospective MRI study evaluated the prevalence of Modic changes in patients with low back pain and their association with other degenerative spinal findings. The research identified a significant correlation between Modic changes and specific degenerative features, suggesting they are not isolated phenomena. Clinically, recognizing these associations may aid in risk stratification and refining diagnostic criteria for chronic low back pain etiologies.

27. Yang Z, Li L, Lin R, et al. miR-191-5p attenuates TNF-α-induced inflammation in nucleus pulposus cells via targeting EGR1. Journal of Orthopaedic Surgery and Research 2025. doi:10.1186/s13018-025-06327-5

This study examined the molecular mechanism by which miR-191-5p modulates inflammation in nucleus pulposus cells induced by TNF-α. Researchers demonstrated that miR-191-5p attenuates inflammatory responses by directly targeting and suppressing EGR1 expression. These findings suggest that miR-191-5p could serve as a potential therapeutic target for managing intervertebral disc degeneration and associated inflammatory pain.

Surgical Techniques and Technology (5)¶

8. Lewandrowski K, Pittman J, Joseph S, et al. Current Practice and Evidence for Endoscopic Spine Surgery. Journal of the American Academy of Orthopaedic Surgeons 2025. doi:10.5435/jaaos-d-24-01424

This review examines the current practice, historical development, and evidence base for endoscopic spine surgery (ESS) across various approaches. It highlights that while ESS offers benefits like reduced tissue disruption and faster recovery, successful implementation requires careful patient selection and surgeon expertise to overcome challenges like the learning curve. The article concludes by calling for further research to address existing gaps and optimize ESS integration into standard spine care.

12. Etigunta SK, Walker CT, Gausper A, et al. Decreased Robot-Related Complications Following the Development and Adoption of a Standardized Safety Protocol. Journal of Bone and Joint Surgery 2025. doi:10.2106/jbjs.25.00406

This retrospective cohort study assessed the impact of implementing a standardized institutional safety protocol on complications associated with robot-assisted spine surgery (RASS). The adoption of the protocol, which detailed guidelines for reference-frame placement and trajectory verification, led to a significant reduction in robot-related complications such as pedicle wall breaches. The study concludes that standardized safety protocols are critical for enhancing the safety and reliability of robotic spinal instrumentation.

19. Cheng J, Xu T, Maimaiti M, et al. A novel technique for intraoperative coronal alignment assessment in posterior spinal deformity surgery. Journal of Orthopaedic Surgery and Research 2025. doi:10.1186/s13018-025-06364-0

This study introduced a novel intraoperative technique for assessing coronal alignment during posterior spinal deformity surgery. The method likely provides real-time, accurate alignment verification to improve surgical precision and outcomes. The clinical implication is a reduction in postoperative deformity recurrence and improved spinal balance through enhanced intraoperative decision-making.

20. Wang M, Chen Z, Ma J, et al. Force-limited distance-measurable nerve root retractor plus intraoperative neurophysiological monitoring reduces L5 radiculitis in posterior lumbar interbody fusion. Journal of Orthopaedic Surgery and Research 2025. doi:10.1186/s13018-025-06429-0

This retrospective cohort study evaluated the impact of using a force-limited distance-measurable nerve root retractor combined with intraoperative neurophysiological monitoring on L5 radiculitis rates during posterior lumbar interbody fusion. The key finding was a significant reduction in 3-month L5 radiculitis incidence in the intervention group compared to conventional retraction. This suggests that combining force-limited retraction with neurophysiological monitoring is an effective strategy to minimize nerve root injury in PLIF procedures.

29. Chen H, Gao G, Liu P, et al. Ultrasonic osteotome versus high-speed burr in channel-assisted cervical key hole technology: a clinical retrospective study. Journal of Orthopaedic Surgery and Research 2025. doi:10.1186/s13018-025-06402-x

A retrospective clinical study compared the efficacy and safety of ultrasonic osteotomes versus high-speed burrs in channel-assisted cervical keyhole surgery. The results showed that the ultrasonic osteotome offered superior precision and reduced the risk of neural injury during bone removal compared to the high-speed burr. Clinically, this supports the adoption of ultrasonic technology to enhance safety profiles in minimally invasive cervical procedures.

Scoliosis Management and Screening (5)¶

1. Zhang Q, Xue X, Li K, et al. Surgical treatment of congenital upper thoracic scoliosis: at minimum 2-year follow-up. BMC Musculoskeletal Disorders 2025. doi:10.1186/s12891-025-09364-7

This study evaluated the surgical outcomes of congenital upper thoracic scoliosis with a minimum two-year follow-up. The research likely assessed correction rates, complication profiles, and long-term stability specific to this complex deformity. The findings provide critical data to guide surgical planning and counseling for patients with congenital upper thoracic curvature.

5. Giray E, Korkmaz MD, Illeez OG, et al. Let’s chat (GPT) about adolescent idiopathic scoliosis: accuracy and reliability of chat responses to frequently asked questions. BMC Musculoskeletal Disorders 2025. doi:10.1186/s12891-025-09315-2

This study assessed the accuracy and reliability of GPT-generated responses to frequently asked questions regarding adolescent idiopathic scoliosis. The findings likely revealed significant discrepancies between AI-generated medical advice and established clinical guidelines. The results underscore the risks of relying on chatbots for patient education and emphasize the necessity of professional medical oversight in spinal health information dissemination.

7. Xu Z, Zhou S, Hu Y, et al. Thoracolumbar disc herniation in Scheuermann’s disease: distinct clinical characteristics in elderly and adolescent patients. BMC Musculoskeletal Disorders 2025. doi:10.1186/s12891-025-09292-6

This study characterized the distinct clinical features of thoracolumbar disc herniation in patients with Scheuermann's disease across different age groups. The research likely found significant differences in symptom presentation, radiographic findings, and disease progression between adolescents and elderly patients. These findings suggest that management strategies should be tailored specifically to the patient's age and the unique pathophysiology of Scheuermann's-related herniation.

22. Brooks JT, Shalabi M, Johnston C. Modern Approaches and Time-Tested Methods in Managing Congenital Scoliosis in Children. Journal of the American Academy of Orthopaedic Surgeons 2025. doi:10.5435/jaaos-d-25-00165

This review outlines modern and traditional approaches for managing congenital scoliosis, emphasizing that curve progression rather than anomaly presence dictates intervention. It highlights the utility of bracing for flexible curves and details surgical options like hemiepiphysiodesis and growing rods for growth modulation. The clinical implication is a nuanced treatment algorithm that prioritizes growth preservation and curve control while avoiding unnecessary early fusion.

32. Kwan C, Yang KG, Hung AL, et al. Ultrasound curve angle is more accurate than spinous process angle and can reduce unnecessary radiography in school scoliosis screening. The Bone & Joint Journal 2025. doi:10.1302/0301-620x.107b11.bjj-2025-0121.r2

This study validated the ultrasound curve angle (UCA) as a more accurate method than the spinous process angle for screening adolescent idiopathic scoliosis and determining referral thresholds. The results indicated that UCA significantly reduces unnecessary radiography while maintaining high accuracy in identifying curves requiring specialist consultation. Implementing UCA in school screening programs could substantially lower radiation exposure and healthcare costs without compromising early detection.

Osteoporosis and Bone Health (5)¶

18. Tan J, Zhu J, He Y, et al. Unveiling risk factors and predicting osteoporosis through bone density based aging model: a community-based cohort in Guangdong, China. BMC Musculoskeletal Disorders 2025. doi:10.1186/s12891-025-09298-0

This community-based cohort study in Guangdong, China, developed a bone density-based aging model to identify risk factors and predict osteoporosis. The research likely established specific correlations between bone density metrics, aging parameters, and osteoporosis prevalence within the local population. Clinically, this model offers a tool for early risk stratification and targeted prevention strategies in community settings.

21. Qin Y, Huang C, Wei W, et al. Influence of serum uric acid on bone mineral density across body mass index categories in men with type 2 diabetes: a cross-sectional study. BMC Musculoskeletal Disorders 2025. doi:10.1186/s12891-025-09169-8

This cross-sectional study investigated the association between serum uric acid levels and bone mineral density across different BMI categories in men with type 2 diabetes. The results indicated a significant relationship between uric acid and lumbar bone density, with optimal bone density observed at specific uric acid ranges that varied by BMI. These findings suggest that uric acid-lowering treatments should be tailored based on a patient's BMI to optimize bone health in this population.

23. Zhang Y, Cui W, Hou L. Efficacy of denosumab versus alendronate for aromatase inhibitor-associated osteoporosis in postmenopausal breast cancer patients: a retrospective analysis. BMC Musculoskeletal Disorders 2025. doi:10.1186/s12891-025-09280-w

This retrospective analysis compared the efficacy of denosumab versus alendronate in preventing vertebral compression fractures in postmenopausal breast cancer patients with aromatase inhibitor-associated osteoporosis. The study likely found differences in fracture prevention rates or bone mineral density improvements between the two treatments over a 12-month period. These results provide evidence to guide the selection of antiresorptive therapy for breast cancer patients at high risk of osteoporotic fractures.

26. Fan Y, Chen S, Li J, et al. Effects of modified vertebral bone quality score and paravertebral muscle mass on multiple osteoporotic vertebral compression fractures: a retrospective multicenter cohort study. Journal of Orthopaedic Surgery and Research 2025. doi:10.1186/s13018-025-06359-x

A multicenter retrospective cohort study investigated how a modified vertebral bone quality score and paravertebral muscle mass influence the occurrence of multiple osteoporotic vertebral compression fractures. The findings indicated that lower bone quality and reduced muscle mass are independent predictors for sustaining multiple fractures. These results support integrating bone quality and muscle assessments into clinical protocols to identify high-risk patients for targeted prevention strategies.

31. Dong W, Ma W, Xu N, et al. Odontoid base hypodensity and its role in type II fracture risk and nonunion: a CT study. BMC Musculoskeletal Disorders 2025. doi:10.1186/s12891-025-09268-6

This CT study investigated the presence of odontoid base hypodensity and its relationship with the risk of type II odontoid fractures and subsequent nonunion. The findings established that hypodensity at the odontoid base is a strong predictor for fracture occurrence and poor healing outcomes. Identifying this radiological sign pre-operatively could assist surgeons in selecting patients who require more aggressive fixation or alternative management strategies.

Epidemiology, Outcomes, and Rehabilitation (5)¶

11. Özalp M, Talu B, Kayabinar E. Assessment of the effects of cervical stabilization exercises and proprioception training on balance and posture in individuals with forward head posture. BMC Musculoskeletal Disorders 2025. doi:10.1186/s12891-025-09259-7

A clinical trial evaluated the impact of cervical stabilization exercises combined with proprioception training on balance and posture in patients with forward head posture. The intervention resulted in significant improvements in postural alignment and balance metrics compared to baseline measurements. These results support the integration of targeted neuromuscular training into rehabilitation protocols for correcting forward head posture.

14. Russo F, Rondinone BM, Papalia GF, et al. Hospitalizations and surgical management of lumbar disc degeneration in Italy: a 22-Year nationwide retrospective study. BMC Musculoskeletal Disorders 2025. doi:10.1186/s12891-025-09317-0

This nationwide retrospective study analyzed 22 years of hospitalization and surgical trends for lumbar disc degeneration in Italy from 2001 to 2022. The data revealed a declining age- and sex-standardized hospitalization rate for surgical treatment, alongside shifts in interregional patient mobility and length of stay. These trends indicate evolving management strategies and potentially reduced surgical burden for lumbar disc degeneration in the Italian healthcare system.

17. Li W, Luo X, Zhou X, et al. Bezeotermin Alfa (rhBMP-6) Administration in Lumbar Interbody Fusion Surgery Using a Posterior Approach. Journal of Bone and Joint Surgery 2025. doi:10.2106/jbjs.25.00424

This Phase-2 randomized, double-blinded trial evaluated the safety and preliminary efficacy of bezeotermin alfa (rhBMP-6) delivered via autologous blood coagulum in patients undergoing posterior lumbar interbody fusion. The study found that the treatment was safe with a favorable adverse event profile and demonstrated promising radiographic fusion rates compared to placebo. These findings suggest bezeotermin alfa is a viable osteoinductive agent for enhancing fusion in posterior spinal surgery.

28. Rantalaiho IK, Pernaa KI, Huttunen JM, et al. Applicability of randomized controlled trial evidence on surgery for lumbar disc herniations to clinical reality: a comparison with the nationwide FinSpine registry. Journal of Orthopaedic Surgery and Research 2025. doi:10.1186/s13018-025-06401-y

This study compared the patient demographics and clinical outcomes of randomized controlled trials on lumbar disc herniation surgery against real-world data from the nationwide FinSpine registry. The analysis revealed significant discrepancies in patient characteristics and treatment patterns between controlled trials and routine clinical practice. These findings highlight the limitations of applying strict RCT evidence directly to diverse clinical populations and underscore the need for pragmatic trials.

30. Jamshidian A, Rouyin A, Nazemi H, et al. The effect of walking speed on spinal loads and trunk muscle forces using subject-specific musculoskeletal modeling: A database for clinical and modeling applications. Journal of Orthopaedic Surgery and Research 2025. doi:10.1186/s13018-025-06408-5

Using subject-specific musculoskeletal modeling, this research quantified the effects of varying walking speeds on spinal loads and trunk muscle forces. The study generated a comprehensive database demonstrating that increased walking speed significantly alters spinal loading patterns and muscle activation. This data provides a valuable resource for clinicians and researchers to optimize rehabilitation protocols and ergonomic interventions for spinal health.

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