{"title":"The Prioritized Correction at Osteotomy Site: A Novel Technique for Preventing Sagittal Translation During 3-Column Osteotomies in Adult Spinal Deformity Surgery.","authors":"Chen Ling, Jie Li, Zongshan Hu, Yanjie Xu, Abdukahar Kiram, Ziyang Tang, Hui Xu, Xiaodong Qin, Benlong Shi, Zezhang Zhu, Yong Qiu, Zhen Liu","doi":"10.14245/ns.2551794.897","DOIUrl":"10.14245/ns.2551794.897","url":null,"abstract":"<p><strong>Objective: </strong>To compare perioperative and complication outcomes, focusing on the prevention of sagittal translation (ST), between a novel \"prioritized correction with multiple-rod construct\" (PC-MRC) technique and traditional multiple-rod constructs (M-RC) in adult spinal deformity (ASD) patients undergoing 3-column osteotomies (3-COs).</p><p><strong>Methods: </strong>In this retrospective study, 101 ASD patients with a minimum 2-year follow-up after 3-COs were divided into 2 groups: PC-MRC (n=65) and M-RC (n=36). The PC-MRC technique involved initial osteotomy closure with short rods followed by global alignment correction with long rods. Radiographic and clinical parameters were assessed preoperatively, postoperatively, and at final follow-up.</p><p><strong>Results: </strong>The PC-MRC group had significantly shorter operation time and lower estimated blood loss (p=0.045 and p=0.007, respectively). Major coronal and kyphotic deformity correction rates were similar between groups. No significant correction loss occurred at the final follow-up. Crucially, the incidence of ST was significantly lower in the PC-MRC group (1.5% vs. 25.0%, p<0.001). Correspondingly, the overall rate of neurological injury was lower in the PC-MRC group (7.7% vs. 22.2%, p=0.037).</p><p><strong>Conclusion: </strong>The PC-MRC technique offers a versatile and rigid fixation for 3-COs in ASD patients, facilitating significant correction of global deformity. This straightforward technique effectively prevents massive blood loss and ST caused by 3-COs, while minimizing the risk of neurological complication.</p>","PeriodicalId":19269,"journal":{"name":"Neurospine","volume":"23 2","pages":"444-458"},"PeriodicalIF":5.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13152697/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147840988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeurospinePub Date : 2026-04-01Epub Date: 2026-04-30DOI: 10.14245/ns.2551762.881
Guipeng Zhao, Haotian Long, Dingyu Du, Dean Chou, Longyi Chen, Junting Hu, Hailong Feng, Qidong Liu, Jinping Liu
{"title":"Reducibility-Based Posterior Reduction and Fusion Strategies for Atlantoaxial Dislocation: A Clinical and Radiological Study.","authors":"Guipeng Zhao, Haotian Long, Dingyu Du, Dean Chou, Longyi Chen, Junting Hu, Hailong Feng, Qidong Liu, Jinping Liu","doi":"10.14245/ns.2551762.881","DOIUrl":"10.14245/ns.2551762.881","url":null,"abstract":"<p><strong>Objective: </strong>This study aims to evaluate the clinical and radiological outcomes of posterior reduction and fusion strategies, with or without interfacet joints distraction and cage implantation, based on reducibility, in the surgical management of atlantoaxial dislocation (AAD).</p><p><strong>Methods: </strong>Patients who underwent posterior reduction and fusion surgery for AAD in our institution were included. They were categorized into 2 groups based on reducibility. Japanese Orthopaedic Association (JOA), visual analogue scale (VAS), and patient-reported satisfaction scores were collected. The atlantodental interval, distance of the tip of the odontoid to Chamberlain's line (DOCL), clivus-axial angle (CXA) and mean obliquity of the atlantoaxial articular facet (OAAF) were measured on computed tomography (CT) images. Fusion was evaluated using CT and dynamic x-rays.</p><p><strong>Results: </strong>A total of 90 patients (45 males and 45 females) were included. Among them, 54 patients in the reducible group underwent direct posterior reduction and fusion, and 36 patients in the irreducible group were treated with additional interfacet joint distraction and cage implantation. All patients showed significant improvements in JOA and VAS scores postoperatively. In the irreducible group, the preoperative CXA was smaller, whereas the OAAF was greater. Receiver operating characteristic curve analysis identified optimal cutoff value of OAAF in predicting reducibility was 32.4° (sensitivity: 86.1%, specificity: 81.5%). Postoperative changes in DOCL and CXA were more pronounced in irreducible group. The fusion rates were comparable in the 2 groups (92.6% vs. 94.4%, p=0.730).</p><p><strong>Conclusion: </strong>The reducibility-based posterior reduction fusion strategy achieves satisfactory clinical and radiological outcomes in the surgical management of AAD. For reducible cases, direct reduction under continuous intraoperative skull traction is preferred to minimize surgical trauma. In contrast, interfacet joints distraction and cage implantation are essential for irreducible cases. Preoperative OAAF may act as a potential predictor of reducibility.</p>","PeriodicalId":19269,"journal":{"name":"Neurospine","volume":"23 2","pages":"411-426"},"PeriodicalIF":5.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13152696/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147840981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeurospinePub Date : 2026-04-01Epub Date: 2026-04-30DOI: 10.14245/ns.2551798.899
Michal Ziga, Linda Bättig, Raphael Gmeiner, Erdem Yurtsever, Martin N Stienen, David Netuka, Ulf C Schneider, Nicolai Maldaner, Ondra Petr
{"title":"Physical Performance Continues to Improve After Surgery for Sciatica, Exceeding Recovery Periods of Physical Capacity and Patient-Reported Outcomes: Multicenter Prospective Observational Study.","authors":"Michal Ziga, Linda Bättig, Raphael Gmeiner, Erdem Yurtsever, Martin N Stienen, David Netuka, Ulf C Schneider, Nicolai Maldaner, Ondra Petr","doi":"10.14245/ns.2551798.899","DOIUrl":"10.14245/ns.2551798.899","url":null,"abstract":"<p><strong>Objective: </strong>To longitudinally analyze smartphone-based real-life activity data and compare it with established clinical outcome measures in patients undergoing lumbar spine surgery for sciatica, focusing on identifying divergence in recovery trajectories.</p><p><strong>Methods: </strong>Fifty patients were assessed preoperatively and at 6 weeks (6W), 3 months (3M), and 6 months (6M). Outcomes included smartphone-derived daily Step Count, objective capacity (6-minute walking test [6WT]), and subjective disability (visual analogue scale [VAS] leg/back, Core Outcome Measures Index [COMI] back, and Oswestry Disability Index [ODI]). All metrics were standardized into z-scores relative to baseline. Piecewise linear mixed-effects (LME) models compared recovery slopes across 2 segments: phase I (early: 0-6 weeks) and phase II (late: 6 weeks-6 months).</p><p><strong>Results: </strong>The cohort (mean age, 50.7 years; 24 females) included 33 patients with lumbar disc herniation and 17 with lateral recess stenosis. All measures improved significantly during phase I (all p<0.05). However, LME modeling revealed a significant interaction between time segment and measurement type in phase II. Daily Step Count was the only metric maintaining a significant, linear upward recovery slope during the late phase (β=0.31 Z/mo). Conversely, slopes for 6WT, ODI, and COMI were significantly flatter (p<0.001 vs. Step Count), indicating a statistical plateau or \"ceiling effect.\" Spearman correlations between Step Count and traditional metrics weakened from strong at baseline to weak at 6 months.</p><p><strong>Conclusion: </strong>Smartphone-derived real-life activity data detect continuous functional improvement up 6 months postoperatively, whereas conventional objective and subjective measures plateau by 6 weeks. Real-world activity monitoring provides a more sensitive assessment of long-term surgical success.</p>","PeriodicalId":19269,"journal":{"name":"Neurospine","volume":"23 2","pages":"229-238"},"PeriodicalIF":5.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13152695/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147841037","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeurospinePub Date : 2026-04-01Epub Date: 2026-04-30DOI: 10.14245/ns.26520308.0154
Hyun-Jun Jang, Dongkyu Kim, Bong-Ju Moon, Kyung-Hyun Kim, Jeong-Yoon Park, Sung-Uk Kuh, Keun-Su Kim, Dong-Kyu Chin
{"title":"Reply Letter: A Commentary on \"Disuse Bone Loss in Fusion Constructs After Multilevel Lumbar Fusion: A Computed Tomography Hounsfield Unit Analysis\".","authors":"Hyun-Jun Jang, Dongkyu Kim, Bong-Ju Moon, Kyung-Hyun Kim, Jeong-Yoon Park, Sung-Uk Kuh, Keun-Su Kim, Dong-Kyu Chin","doi":"10.14245/ns.26520308.0154","DOIUrl":"10.14245/ns.26520308.0154","url":null,"abstract":"","PeriodicalId":19269,"journal":{"name":"Neurospine","volume":"23 2","pages":"506-507"},"PeriodicalIF":5.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13152704/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147841032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeurospinePub Date : 2026-04-01Epub Date: 2026-04-30DOI: 10.14245/ns.26520424.0212
Jiajun Deng, Hongsheng Lin
{"title":"A Commentary on \"Disuse Bone Loss in Fusion Constructs After Multilevel Lumbar Fusion: A Computed Tomography Hounsfield Unit Analysis\".","authors":"Jiajun Deng, Hongsheng Lin","doi":"10.14245/ns.26520424.0212","DOIUrl":"10.14245/ns.26520424.0212","url":null,"abstract":"","PeriodicalId":19269,"journal":{"name":"Neurospine","volume":"23 2","pages":"504-505"},"PeriodicalIF":5.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13152707/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147840943","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeurospinePub Date : 2026-04-01Epub Date: 2026-04-30DOI: 10.14245/ns.26520494.0247
Inbo Han
{"title":"From the Editor-in-Chief: Featured Articles in the April 2026 Issue.","authors":"Inbo Han","doi":"10.14245/ns.26520494.0247","DOIUrl":"10.14245/ns.26520494.0247","url":null,"abstract":"","PeriodicalId":19269,"journal":{"name":"Neurospine","volume":"23 2","pages":"227-228"},"PeriodicalIF":5.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13152710/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147840958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeurospinePub Date : 2026-04-01Epub Date: 2026-04-30DOI: 10.14245/ns.2551696.848
David D Liu, Evan Dennis, Advait Patil, Emily H Song, Joshua I Chalif, Rohaid Ali, John H Chi
{"title":"A Comprehensive Review of Spinal Arthroplasty.","authors":"David D Liu, Evan Dennis, Advait Patil, Emily H Song, Joshua I Chalif, Rohaid Ali, John H Chi","doi":"10.14245/ns.2551696.848","DOIUrl":"10.14245/ns.2551696.848","url":null,"abstract":"<p><p>Spinal arthroplasty aims to preserve or reconstruct the normal biomechanical functions of the spine with motion-preserving implants. Although fusion is a proven technique to stabilize the spine, it is nonphysiologic with known limitations such as loss of mobility and risk of adjacent segment disease. This paper focuses on the main areas of spinal arthroplasty including cervical disc replacement, lumbar disc replacement, and lumbar facet arthroplasty. We review the biomechanics, history, outcomes, and future directions for each of these over the last 30 years. Although today spinal arthroplasty is only used in very specific degenerative settings, as innovation in spinal arthroplasty progresses, this will lead to wider adoption and a future where spine surgery is truly reconstructive and motion-preserving.</p>","PeriodicalId":19269,"journal":{"name":"Neurospine","volume":"23 2","pages":"257-272"},"PeriodicalIF":5.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13152690/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147840913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeurospinePub Date : 2026-04-01Epub Date: 2026-04-30DOI: 10.14245/ns.26520512.0256
Shigeo Ueda
{"title":"A Commentary on \"Functional Resilience in Chronic Low Back Pain: Dissociating Magnetic Resonance Imaging Abnormalities From Real-World Disability in the Wakayama Spine Study\".","authors":"Shigeo Ueda","doi":"10.14245/ns.26520512.0256","DOIUrl":"10.14245/ns.26520512.0256","url":null,"abstract":"","PeriodicalId":19269,"journal":{"name":"Neurospine","volume":"23 2","pages":"290-292"},"PeriodicalIF":5.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13152708/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147840855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
NeurospinePub Date : 2026-04-01Epub Date: 2026-04-30DOI: 10.14245/ns.26520116.0058
Bin Liu, Hongsheng Lin
{"title":"A Commentary on \"Romosozumab Enhances Implant Stability in Glucocorticoid-Induced Osteoporotic Bone: A Rabbit Model Study\".","authors":"Bin Liu, Hongsheng Lin","doi":"10.14245/ns.26520116.0058","DOIUrl":"10.14245/ns.26520116.0058","url":null,"abstract":"","PeriodicalId":19269,"journal":{"name":"Neurospine","volume":"23 2","pages":"508-509"},"PeriodicalIF":5.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13152713/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147840924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}