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Anterior Interosseus Nerve Syndrome Masqueraded by a Functional Gantzer Muscle Variant: A Report of 3 Cases. 以功能性甘茨肌变异为伪装的前骨间神经综合征3例报告。
JBJS case connector Pub Date : 2026-09-24 eCollection Date: 2026-07-01 DOI: 10.2106/JBJS.CC.25.00539
Cristian Escalera, Kartik Reddy, Darryl B Sneag, Carlo Milani, Ogonna Nwawka, Scott W Wolfe
{"title":"Anterior Interosseus Nerve Syndrome Masqueraded by a Functional Gantzer Muscle Variant: A Report of 3 Cases.","authors":"Cristian Escalera, Kartik Reddy, Darryl B Sneag, Carlo Milani, Ogonna Nwawka, Scott W Wolfe","doi":"10.2106/JBJS.CC.25.00539","DOIUrl":"https://doi.org/10.2106/JBJS.CC.25.00539","url":null,"abstract":"<p><strong>Case: </strong>We present 3 patients with anterior interosseous nerve syndrome (AINS) who demonstrated thumb interphalangeal flexion despite complete denervation of the flexor pollicis longus. Advanced imaging revealed a Gantzer muscle in all cases that was confirmed at surgery in the 2 patients who required microneurolysis.</p><p><strong>Conclusion: </strong>In patients with suspected AINS, retention of thumb IP flexion should prompt suspicion for a Gantzer muscle. Preservation or return of thumb flexion does not rule out AINS nor indicate recovery.</p>","PeriodicalId":14748,"journal":{"name":"JBJS case connector","volume":"16 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149080910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Challenging Removal of Intramedullary Nails: Description of 2 Techniques With Proposal to Classify Nail Extraction Methods. 具有挑战性的髓内钉拔除：描述两种技术并建议对拔钉方法进行分类。
JBJS case connector Pub Date : 2026-09-24 eCollection Date: 2026-07-01 DOI: 10.2106/JBJS.CC.25.00504
Sumit Arora, Shivam Bansal, Arihant Kataria, Tazeem Ali, Vineet Bajaj, Sumit Sural
{"title":"Challenging Removal of Intramedullary Nails: Description of 2 Techniques With Proposal to Classify Nail Extraction Methods.","authors":"Sumit Arora, Shivam Bansal, Arihant Kataria, Tazeem Ali, Vineet Bajaj, Sumit Sural","doi":"10.2106/JBJS.CC.25.00504","DOIUrl":"https://doi.org/10.2106/JBJS.CC.25.00504","url":null,"abstract":"<p><strong>Case: </strong>We present 2 techniques for removing intramedullary nails. In the first case, an intact, incarcerated short proximal femoral nail was removed without making an additional bone window and underwent hip arthroplasty in the same sitting. The other case had a small distal fragment of broken femoral nail removed through the nonunion site, and exchange nailing was performed. A classification system for various techniques is also proposed, which may help orthopedic surgeons best prepare in the event of failure to remove the nail using the standard technique.</p><p><strong>Conclusion: </strong>Removal of an intramedullary nail can be challenging. In anticipation, all possible armamentarium should be kept ready.</p>","PeriodicalId":14748,"journal":{"name":"JBJS case connector","volume":"16 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149080442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Femoral Neck System and Cement Augmentation for Temporizing a Pathologic Hip Fracture in Osteosarcoma: A Case Report. 股骨颈系统和骨水泥增强术治疗骨肉瘤致病性髋部骨折一例报告。
JBJS case connector Pub Date : 2026-09-24 eCollection Date: 2026-07-01 DOI: 10.2106/JBJS.CC.26.00141
Christopher M Liu, Kevin Y Zhu, Phoebe Stark, Erin J Kim, Paul J Chung, Frank Chiarappa
{"title":"Femoral Neck System and Cement Augmentation for Temporizing a Pathologic Hip Fracture in Osteosarcoma: A Case Report.","authors":"Christopher M Liu, Kevin Y Zhu, Phoebe Stark, Erin J Kim, Paul J Chung, Frank Chiarappa","doi":"10.2106/JBJS.CC.26.00141","DOIUrl":"https://doi.org/10.2106/JBJS.CC.26.00141","url":null,"abstract":"<p><strong>Case: </strong>A 17-year-old adolescent boy with primary osteosarcoma of the proximal femur underwent cement-augmented internal fixation with a femoral neck system for a pathologic hip fracture, allowing for pain control, neoadjuvant chemotherapy, and diagnostic work-up to be completed before resection and endoprosthetic reconstruction. No hardware complications or local recurrences were noted at 3 years postoperatively.</p><p><strong>Conclusion: </strong>Cement-augmented internal fixation with a femoral neck system is an option for certain patients with pathologic hip fractures. This approach allows for diagnostic work-up, patient optimization, logistical planning, and neoadjuvant chemotherapy to be completed before definitive resection.</p>","PeriodicalId":14748,"journal":{"name":"JBJS case connector","volume":"16 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149080478","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Primary Hyperparathyroidism Presenting as a Distal Femur Pathologic Fracture in an Adolescent: A Case Report. 原发性甲状旁腺功能亢进表现为青少年股骨远端病理性骨折一例报告。
JBJS case connector Pub Date : 2026-09-24 eCollection Date: 2026-07-01 DOI: 10.2106/JBJS.CC.26.00240
Taylor Anthony, Alexander J Baur, Ashwin Suresh, Jasmine Lopez, Kevin Mo, Mohan V Belthur
{"title":"Primary Hyperparathyroidism Presenting as a Distal Femur Pathologic Fracture in an Adolescent: A Case Report.","authors":"Taylor Anthony, Alexander J Baur, Ashwin Suresh, Jasmine Lopez, Kevin Mo, Mohan V Belthur","doi":"10.2106/JBJS.CC.26.00240","DOIUrl":"https://doi.org/10.2106/JBJS.CC.26.00240","url":null,"abstract":"<p><strong>Case: </strong>A 17-year-old adolescent boy presented with a pathologic distal femur fracture and bilateral distal femoral metadiaphyseal lytic lesions. Multidisciplinary evaluation confirmed bilateral distal femoral brown tumors associated with primary hyperparathyroidism secondary to a parathyroid adenoma. Treatment included bone biopsy, curettage, grafting, and retrograde locked intramedullary nail, followed by definitive partial parathyroidectomy. The contralateral metadiaphyseal lesion was treated with corrective osteotomy and prophylactic intramedullary stabilization.</p><p><strong>Conclusion: </strong>Primary hyperparathyroidism may initially present with symptomatic skeletal manifestations and, rarely, pathologic fracture. Multifocal lytic lesions are a diagnostic red flag which should prompt early biochemical evaluation. In advanced skeletal involvement, prophylactic stabilization can reduce risk of subsequent fracture.</p>","PeriodicalId":14748,"journal":{"name":"JBJS case connector","volume":"16 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149080520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Radioulnar Synostosis After Isolated Undisplaced Distal Ulna Fracture: A Rare Case Report and Review of the Literature. 孤立性未移位尺骨远端骨折后尺桡关节闭锁：一例罕见病例报告及文献复习。
JBJS case connector Pub Date : 2026-09-24 eCollection Date: 2026-07-01 DOI: 10.2106/JBJS.CC.25.00467
Kundu Zile Singh, Kumar Pradeep, Verma Vishal, Gulia Aditya, Kundu Kunika, Pankaj Kumar Sharma
{"title":"Radioulnar Synostosis After Isolated Undisplaced Distal Ulna Fracture: A Rare Case Report and Review of the Literature.","authors":"Kundu Zile Singh, Kumar Pradeep, Verma Vishal, Gulia Aditya, Kundu Kunika, Pankaj Kumar Sharma","doi":"10.2106/JBJS.CC.25.00467","DOIUrl":"https://doi.org/10.2106/JBJS.CC.25.00467","url":null,"abstract":"<p><strong>Case: </strong>A 50-year-old man developed radioulnar synostosis and presented with restricted forearm rotation, 15 months after sustaining an undisplaced fracture of the ulna. Radiographs and computed tomography revealed a mature bony bridge between the forearm bones. Surgical excision of the heterotopic bone was performed, and bone wax was applied to mitigate hemorrhage and prevent recurrence. Postoperatively, the patient achieved near-complete pronation and supination and no recurrence was found at the end of 2 years of follow-up.</p><p><strong>Conclusion: </strong>Radioulnar synostosis is an infrequent complication associated with isolated undisplaced ulnar fractures, leading to loss of forearm rotation and should be managed with surgical excision and appropriate rehabilitation.</p>","PeriodicalId":14748,"journal":{"name":"JBJS case connector","volume":"16 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149080483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Transient Paraparesis from Post-traumatic Muscle Herniation Through Laminectomy Defect: Rare Sequela of Thoracolumbar Kyphosis Correction: A Case Report. 创伤后肌肉突出经椎板切除后一过性麻痹：胸腰椎后凸矫正的罕见后遗症1例报告。
JBJS case connector Pub Date : 2026-09-24 eCollection Date: 2026-07-01 DOI: 10.2106/JBJS.CC.26.00188
Ajoy Prasad Shetty, Karthik Ramachandran, Sri Vijay Anand K S, Rishi Mugesh Kanna, Shanmuganathan Rajasekaran
{"title":"Transient Paraparesis from Post-traumatic Muscle Herniation Through Laminectomy Defect: Rare Sequela of Thoracolumbar Kyphosis Correction: A Case Report.","authors":"Ajoy Prasad Shetty, Karthik Ramachandran, Sri Vijay Anand K S, Rishi Mugesh Kanna, Shanmuganathan Rajasekaran","doi":"10.2106/JBJS.CC.26.00188","DOIUrl":"https://doi.org/10.2106/JBJS.CC.26.00188","url":null,"abstract":"<p><strong>Case: </strong>An 8-year-old girl with congenital thoracolumbar kyphosis underwent posterior instrumented correction with a closing-opening wedge osteotomy. Seven years later, minor trauma caused acute paraparesis. Imaging showed intact implants and solid fusion, but muscle herniation into the laminectomy defect had impinged the spinal cord. Steroids and physiotherapy led to full recovery within 1 month, confirmed at 1-year and 3-year postinjury follow-up.</p><p><strong>Conclusion: </strong>This case highlights transient paraparesis from soft-tissue impingement years after correction, underscoring the exposed apical cord's vulnerability and the importance of protective reconstruction-such as titanium mesh or artificial lamina-to prevent trauma-related injury.</p>","PeriodicalId":14748,"journal":{"name":"JBJS case connector","volume":"16 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149080499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fabella Syndrome Following Arthroscopic Lateral Meniscectomy with Serial Imaging Findings: A Case Report. 关节镜外侧半月板切除术后的Fabella综合征与一系列影像学表现：1例报告。
JBJS case connector Pub Date : 2026-09-24 eCollection Date: 2026-07-01 DOI: 10.2106/JBJS.CC.26.00149
Shio Hirakata, Masaya Hayashi, Hideya Yoshimura
{"title":"Fabella Syndrome Following Arthroscopic Lateral Meniscectomy with Serial Imaging Findings: A Case Report.","authors":"Shio Hirakata, Masaya Hayashi, Hideya Yoshimura","doi":"10.2106/JBJS.CC.26.00149","DOIUrl":"https://doi.org/10.2106/JBJS.CC.26.00149","url":null,"abstract":"<p><strong>Case: </strong>A 54-year-old woman developed persistent posterolateral knee pain 1 year after arthroscopic lateral meniscectomy. Serial magnetic resonance imaging obtained before each surgical intervention retrospectively demonstrated progressive enlargement of the fabella. Arthroscopy confirmed impingement between the fabella and the lateral femoral condyle. All-arthroscopic fabellectomy resulted in immediate symptom relief, with no recurrence at the 2-year follow-up.</p><p><strong>Conclusion: </strong>This case highlights a potential relationship between altered load distribution after meniscectomy and progressive fabellar hypertrophy. Fabella syndrome should be considered in patients with persistent posterolateral knee pain after meniscectomy.</p>","PeriodicalId":14748,"journal":{"name":"JBJS case connector","volume":"16 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149080488","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prone CPR After Cementation-Induced Vasoplegia and Bezold-Jarisch Asystole in Spine Surgery: Case Report. 脊柱手术中骨水泥致血管麻痹和Bezold-Jarisch心脏骤停后俯卧式心肺复苏术一例报告。
JBJS case connector Pub Date : 2026-09-24 eCollection Date: 2026-07-01 DOI: 10.2106/JBJS.CC.25.00606
Carlos Rafael Ramírez-Paesano, Juan Diego Villegas-Alzate, Yerlin Andrés Colina-Vargas, Rudolf Morgenstern, Christian Morgenstern
{"title":"Prone CPR After Cementation-Induced Vasoplegia and Bezold-Jarisch Asystole in Spine Surgery: Case Report.","authors":"Carlos Rafael Ramírez-Paesano, Juan Diego Villegas-Alzate, Yerlin Andrés Colina-Vargas, Rudolf Morgenstern, Christian Morgenstern","doi":"10.2106/JBJS.CC.25.00606","DOIUrl":"https://doi.org/10.2106/JBJS.CC.25.00606","url":null,"abstract":"<p><strong>Case: </strong>A 76-year-old White woman, with severe back pain, severe osteoporosis, rheumatoid arthritis, Parkinson's disease, and hypertension, presented with proximal junctional failure and progressive thoracic kyphosis and developed abrupt SpO2/EtCO2 decline, hypotension, bradycardia, and asystole immediately after cementing 20 pedicle screws. Prone CPR and 1 mg epinephrine achieved return of spontaneous circulation; ventricular tachycardia was cardioverted. TEE showed a hyperdynamic heart without RV dilation. CTA excluded major PE, revealing tiny polymethylmethacrylate deposits and perivertebral leak.</p><p><strong>Conclusion: </strong>Findings suggest immunohumoral vasoplegia with relative preload loss triggering a Bezold-Jarisch reflex. Early recognition, prone CPR, and POCUS-guided, goal-directed resuscitation enabled neurologically intact survival.</p>","PeriodicalId":14748,"journal":{"name":"JBJS case connector","volume":"16 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149080434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Complete Discoid Medial Meniscus With Absent Anterior Horn Osseous Insertion Tethered by an Oblique Meniscomeniscal Ligament: A Case Report. 斜半月板韧带系连完整的盘状内侧半月板，缺失前角骨止点：1例报告。
JBJS case connector Pub Date : 2026-09-24 eCollection Date: 2026-07-01 DOI: 10.2106/JBJS.CC.26.00273
Boming Zhao, Xian Zhang, Bo Ren
{"title":"Complete Discoid Medial Meniscus With Absent Anterior Horn Osseous Insertion Tethered by an Oblique Meniscomeniscal Ligament: A Case Report.","authors":"Boming Zhao, Xian Zhang, Bo Ren","doi":"10.2106/JBJS.CC.26.00273","DOIUrl":"https://doi.org/10.2106/JBJS.CC.26.00273","url":null,"abstract":"<p><strong>Case: </strong>A 21-year-old woman presented with chronic, nontraumatic left knee pain and was diagnosed with a complete-type medial discoid meniscus lacking anterior horn osseous insertion, but connected to the posterior horn of the lateral meniscus by an oblique meniscomeniscal ligament as seen on MRI and confirmed arthroscopically.</p><p><strong>Conclusion: </strong>This represents a previously unreported anatomical variant that broadens the morphological spectrum of medial discoid meniscus. Multiplanar MRI is critical for its accurate identification.</p>","PeriodicalId":14748,"journal":{"name":"JBJS case connector","volume":"16 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149080490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Anterior Hip Dislocation with Testicular Interposition: A Case Report. 髋前位脱位伴睾丸间位1例。
JBJS case connector Pub Date : 2026-09-24 eCollection Date: 2026-07-01 DOI: 10.2106/JBJS.CC.26.00038
Gustavo Zeni Schuroff, Marco Antonio Pedroni, Felipe Becker Mantovani, Guilherme Zeni Schuroff, Gabriela Ceccato Pedroni, Ademir Antonio Schuroff
{"title":"Anterior Hip Dislocation with Testicular Interposition: A Case Report.","authors":"Gustavo Zeni Schuroff, Marco Antonio Pedroni, Felipe Becker Mantovani, Guilherme Zeni Schuroff, Gabriela Ceccato Pedroni, Ademir Antonio Schuroff","doi":"10.2106/JBJS.CC.26.00038","DOIUrl":"https://doi.org/10.2106/JBJS.CC.26.00038","url":null,"abstract":"<p><strong>Case: </strong>A 48-year-old healthy man presented with severe inguinal pain and hip immobility after a high-energy injury. Physical examination revealed scrotal invagination and a nonpalpable testis. Imaging confirmed anterior hip subluxation and intra-articular soft-tissue interposition. After failed closed reduction, surgical exploration identified testicular entrapment. Compressive necrosis necessitated orchiectomy; stable joint reduction was achieved. The patient remained asymptomatic at 12 months.</p><p><strong>Conclusion: </strong>This rare case highlights the necessity of thorough perineal assessment in high-energy pelvic trauma to identify uncommon soft-tissue interpositions preventing joint reduction.</p>","PeriodicalId":14748,"journal":{"name":"JBJS case connector","volume":"16 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2026-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149080838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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