JSES International最新文献

{"title":"Correlation of glenoid concavity with surgical failure after arthroscopic stabilization procedures for recurrent anterior shoulder instability","authors":"Y.J. Choi , S.J. Shin","doi":"10.1016/j.jseint.2025.101450","DOIUrl":"10.1016/j.jseint.2025.101450","url":null,"abstract":"","PeriodicalId":34444,"journal":{"name":"JSES International","volume":"10 2","pages":"Article 101450"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147538767","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}

{"title":"Is there scapula dyskinesis in Shoulder Impingement Syndrome","authors":"R. Miyadahira , M. Villela , J. Chahla , L. Metsavaht , J.A. Gustafson , G. Leporace","doi":"10.1016/j.jseint.2025.101487","DOIUrl":"10.1016/j.jseint.2025.101487","url":null,"abstract":"","PeriodicalId":34444,"journal":{"name":"JSES International","volume":"10 2","pages":"Article 101487"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147538880","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}

{"title":"Are we talking about the same fracture? A survey of orthopaedic surgeons regarding the Neer classification as described in the orthopaedic literature","authors":"M. Chelli , G. Gregory , P. Boileau","doi":"10.1016/j.jseint.2025.101469","DOIUrl":"10.1016/j.jseint.2025.101469","url":null,"abstract":"","PeriodicalId":34444,"journal":{"name":"JSES International","volume":"10 2","pages":"Article 101469"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147537849","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}

{"title":"Reverse Shoulder Arthroplasty with a minimum of 5 years of follow-up: a comparative study of Navigated and Non-Navigated prostheses in defective glenoids","authors":"R. Barco , B. Diez Sánchez , L. Palacios Díaz , S. Antuña","doi":"10.1016/j.jseint.2025.101472","DOIUrl":"10.1016/j.jseint.2025.101472","url":null,"abstract":"","PeriodicalId":34444,"journal":{"name":"JSES International","volume":"10 2","pages":"Article 101472"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147537850","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}

{"title":"Locking plate and cemented screws versus reverse shoulder arthroplasty in complex proximal humerus fracture in elderly population: a retrospective comparative cohort study","authors":"N. Martinez-Catalan , C. Garcia Rubio , G. Luengo-Alonso , M. Valencia , C. Delgado , E. Calvo , F. Antonio M","doi":"10.1016/j.jseint.2025.101470","DOIUrl":"10.1016/j.jseint.2025.101470","url":null,"abstract":"","PeriodicalId":34444,"journal":{"name":"JSES International","volume":"10 2","pages":"Article 101470"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147537851","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}

{"title":"Persistent scapular dyskinesis after arthroscopic rotator cuff repair: a prospective study","authors":"Michele Mercurio MD ,&nbsp;Erminia Cofano MD ,&nbsp;Claudia Mancuso MD ,&nbsp;Lorena Paola MD ,&nbsp;Alessandro Imbrogno PhD Student ,&nbsp;Matteo Mantovani MSc ,&nbsp;Filippo Familiari MD ,&nbsp;Giorgio Gasparini MD ,&nbsp;Olimpio Galasso MD","doi":"10.1016/j.jseint.2025.101420","DOIUrl":"10.1016/j.jseint.2025.101420","url":null,"abstract":"<div><h3>Background</h3><div>The supraspinatus plays a critical role in stabilizing the glenohumeral joint and facilitating arm elevation. The biomechanical disruption caused by supraspinatus tears changes the normal force couple balance between the deltoid and rotator cuff muscles, often resulting in superior migration of the humeral head and altered scapulohumeral rhythm (SHR). This study aims to prospectively compare the shoulder kinematics of patients preoperatively and after arthroscopic rotator cuff repair using magnetic inertial measurement units with a motion analysis system.</div></div><div><h3>Methods</h3><div>A prospective study was conducted with data collection on 21 patients who underwent shoulder arthroscopy for rotator cuff tear repair. Preoperatively and at a minimum 12-month follow-up, each patient was evaluated using the range of motion (ROM) assessment and the Constant–Murley Score (CMS). Patients were examined using the ShowMotion 3D kinematic tracking system (NCS Lab, Modena, Italy), which uses wireless wearable noninvasive magnetic and inertial measurement units sensors to assess the three-dimensional kinematics of the shoulder. For each plane of elevation (ie, flexion and abduction), the SHR was described by 3 scapulothoracic rotations (ie, protraction–retraction, mediolateral rotation, and posterior–anterior tilting) as a function of humeral anteflexion or humeral abduction.</div></div><div><h3>Results</h3><div>Active flexion and external rotation ROM showed statistically significant improvement (<em>P</em> = .039 and <em>P</em> = .006, respectively). CMS pain, strength, and total showed statistically significant improvement (<em>P</em> = .039 and <em>P</em> = .006, respectively). All the patients showed a nonstatistically significant difference of the SHR along the entire ROM between pre- and postoperative evaluation. The <em>P</em> value in flexion and abduction was &gt;.05; the only statistically significant value was on tilt at 60° in flexion (<em>P</em> = .044)</div></div><div><h3>Conclusion</h3><div>A persistent scapular dyskinesis was observed after arthroscopic rotator cuff repair. Despite a statistically significant improvement reported for active flexion, active external rotation, and for the total CMS, scapular dyskinesis is not resolved with surgery and may contribute to worse long-term outcomes. Further biomechanical and clinical research studies are needed to define specific rehabilitation programs, to maximize outcomes, and to prevent possible cause of reinjury of the rotator cuff repaired.</div></div>","PeriodicalId":34444,"journal":{"name":"JSES International","volume":"10 2","pages":"Article 101420"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145941281","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}

{"title":"Midterm outcomes of revision biceps tendon augmentation without tear completion for high-grade partial articular-sided supraspinatus retear","authors":"Young Jun Kim MD ,&nbsp;Jin-Kyu Kang MD ,&nbsp;Hwang-Young Yoo MD ,&nbsp;Bo-Sung Kim MD ,&nbsp;Jong-Hun Ji MD","doi":"10.1016/j.jseint.2025.101612","DOIUrl":"10.1016/j.jseint.2025.101612","url":null,"abstract":"<div><h3>Background</h3><div>To evaluate the midterm clinical and radiological outcomes of revision biceps tendon augmentation without tear completion for high-grade partial articular-sided supraspinatus retear (PASR) lesions, which present challenges due to poor tendon quality.</div></div><div><h3>Methods</h3><div>From January 2014 to May 2023, a total of 22 patients (mean age: 57.2 ± 13.6 years, 8 males and 14 females) who underwent revision cuff repair with biceps tendon augmentation without tear completion for PASR lesions following arthroscopic rotator cuff repair were enrolled in our study. Clinical and radiological outcomes, including tendon integrity (Sugaya classification), were evaluated at the last follow-up.</div></div><div><h3>Results</h3><div>Previous rotator cuff tears included 10 full-thickness rotator cuff tears and 12 partial-thickness rotator cuff tears. The mean interval between the primary and revision surgeries was 5.9 ± 6.0 years (range, 0.4-14 years). Significant improvements were observed in all clinical outcome scores at the final follow-up. The mean visual analog scale for pain improved from 3.8 preoperatively to 0.6 postoperatively. American Shoulder and Elbow Surgeons scores improved from 64 to 94, University of California, Los Angeles shoulder scores from 22 to 33, Simple Shoulder Test scores from 7 to 11, and Korean Shoulder Scoring System scores from 71 to 94 (all <em>P</em> values &lt;.001). Follow-up magnetic resonance imaging demonstrated good tendon integrity, with Sugaya type I in 6 cases, type II in 15 cases, and type IV in 1 case. Mean tendon thickness increased from 4.6 mm to 7.4 mm. There were no retears, and no progression of fatty infiltration or muscle atrophy was observed.</div></div><div><h3>Conclusion</h3><div>High-grade PASR lesions following arthroscopic rotator cuff repair are uncommon and challenging due to poor tendon quality. Revision biceps tendon augmentation without tear completion appears to be a reliable surgical option for PASR lesions, yielding favorable midterm functional and radiological outcomes.</div></div>","PeriodicalId":34444,"journal":{"name":"JSES International","volume":"10 2","pages":"Article 101612"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146188559","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}

{"title":"Exploratory analysis of relationship between trunk and pelvic motion and shoulder motion during throwing in quarterbacks in American football","authors":"Takuya Aso PT, PhD ,&nbsp;Masaki Tamura PT, PhD ,&nbsp;Noriko Kaji JSPO-AT, PhD ,&nbsp;Shun Akiyama BS ,&nbsp;Takuya Maeda PT, PhD ,&nbsp;Yuji Takahashi PT, PhD ,&nbsp;Shumpei Furuyama PT, MS ,&nbsp;Kanji Furuya MD, PhD ,&nbsp;Takeyuki Sambe MD, PhD ,&nbsp;Naoya Nishinaka MD, PhD","doi":"10.1016/j.jseint.2026.101630","DOIUrl":"10.1016/j.jseint.2026.101630","url":null,"abstract":"<div><h3>Background</h3><div>American football quarterbacks (QBs) often sustain shoulder and elbow injuries from throwing. During the late cocking phase of pitching, decreased shoulder abduction and horizontal adduction angles at shoulder maximum external rotation (MER) contribute to these injuries. The relationship between incorrect shoulder positions at MER and the trunk and pelvic rotation angles at stride foot contact (SFC) during the early cocking phase has been analyzed. However, most studies focus on baseball pitchers rather than QBs. The relationship between shoulder kinematics at MER and trunk and pelvis kinematics at SFC in QBs during throwing remains underexplored. The purpose of this study was to explore the relationship between trunk and pelvic kinematics at SFC and shoulder kinematics at MER in QBs under nongame situations.</div></div><div><h3>Methods</h3><div>Eleven male American football QBs participated, each throwing 5 balls over 27.4 m (30 yards) with maximum effort. Throwing motions were recorded at 240 Hz using an iPad positioned at the participant's side. Kinematic data were analyzed using PitchAI to calculate the trunk (flexion/extension and nonthrowing/throwing side rotation), pelvic (nonthrowing/throwing side rotation), and hip–shoulder separation angles at SFC, as well as the shoulder (horizontal adduction/abduction, abduction/adduction, and external/internal rotation) angles at MER. The hip–shoulder separation angle is the difference between the pelvic and trunk rotation angles, with a positive value indicating trunk rotation toward the throwing side relative to the pelvis. Although PitchAI does not completely match data obtained with a marker-based motion capture system, its validity for trunk and pelvic kinematics is considered sufficient. Relationships between trunk and pelvic angles at SFC and shoulder angles at MER were evaluated using Pearson’s product–moment correlation coefficient (r_p) or Spearman rank correlation coefficient (r_s).</div></div><div><h3>Results</h3><div>Trunk (r_p = .779, <em>P</em> = .005), pelvic (r_s = 0.691, <em>P</em> = .019), and hip–shoulder separation (r_p = .667, <em>P</em> = .025) angles at SFC were positively correlated with shoulder horizontal adduction at MER. Trunk (r_p = −0.635, <em>P</em> = .036) and pelvic (r_s = −0.682, <em>P</em> = .021) rotation angles at SFC were negatively correlated with shoulder abduction angle at MER.</div></div><div><h3>Conclusion</h3><div>During the throwing motion in QBs, shoulder abduction and horizontal adduction angles at MER appear related to trunk and pelvic rotation movements at SFC.</div></div>","PeriodicalId":34444,"journal":{"name":"JSES International","volume":"10 2","pages":"Article 101630"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147378777","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}

{"title":"Diagnostics of shoulder periprosthetic joint infections: a global survey","authors":"Oscar Dorrestijn MD, PhD ,&nbsp;Nick Smeitink BSc ,&nbsp;Eoghan T. Hurley MD ,&nbsp;Emilio Calvo MD, PhD, MBA ,&nbsp;Jeppe Rasmussen MD, PhD ,&nbsp;Hanna Björnsson MD, PhD ,&nbsp;Robert Hudek MD, PhD","doi":"10.1016/j.jseint.2025.101608","DOIUrl":"10.1016/j.jseint.2025.101608","url":null,"abstract":"<div><h3>Background</h3><div>Diagnosing shoulder periprosthetic joint infections is challenging. Several diagnostic tests are available, but their predictive value varies and is often poor. The aims of this study were to assess internationally how shoulder surgeons diagnose periprosthetic joint infections, and to investigate if there are intercollegiate and intercontinental differences.</div></div><div><h3>Methods</h3><div>An online survey was designed for shoulder surgeons, incorporating questions regarding their utilization of various diagnostic tests and their level of professional experience. The survey was sent digitally to all members of the European Society for Surgery of the Shoulder and the Elbow, all European National Delegates, and 10 other Shoulder and Elbow societies worldwide.</div></div><div><h3>Results</h3><div>Two hundred thirty-nine surveys were included in this study. The majority of the respondents (≥65%) routinely use at least 9 of different diagnostic tests as a workup for a shoulder periprosthetic joint infections: blood testing (C-reactive protein, white blood cell count, and erythrocyte sedimentation rate), pre-revision synovial fluid aspiration (culture, white blood cell count and neutrophil percentage), intraoperative synovial fluid aspiration (culture), pre-revision tissue biopsy for culture, and tissue biopsy for culture during revision surgery. Significantly more cultures were taken by respondents who perform fewer revisions (<em>P</em> = .008). These surgeons are also less likely to rely solely on cultures to diagnose an infection of the periprosthetic joint of the shoulder. Respondents outside Europe use frozen section and sonication significantly less often (<em>P</em> &lt; .001), and more often erythrocyte sedimentation rate (<em>P</em> = .001) and Metal Artifact Reduction Sequence magnetic resonance imaging (<em>P</em> = .01)), compared to respondents in Europe.</div></div><div><h3>Conclusion</h3><div>The majority of those who responded to the survey use at least 9 different tests to diagnose shoulder periprosthetic joint infections. Respondents who perform fewer revisions take more cultures, and are less likely to rely solely on these results, compared to surgeons who perform more revisions. There are several intercontinental differences in the use of diagnostic tests (within Europe and beyond).</div></div>","PeriodicalId":34444,"journal":{"name":"JSES International","volume":"10 2","pages":"Article 101608"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146189221","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}

{"title":"Prophylactic acromion pin fixation reduces catastrophic failure in weakened acromion biomechanical model of reverse shoulder arthroplasty","authors":"Brian C. Werner MD ,&nbsp;Patrick J. Denard MD ,&nbsp;Shota Hoshika MD, PhD ,&nbsp;Victor T. Hung BS ,&nbsp;Michelle H. McGarry MS ,&nbsp;Taichi Komatsu MD ,&nbsp;Thay Q. Lee PhD","doi":"10.1016/j.jseint.2026.101626","DOIUrl":"10.1016/j.jseint.2026.101626","url":null,"abstract":"<div><h3>Background</h3><div>Despite increased recognition of risk factors, improved implant design, and advances in implant positioning, acromion fractures remain a common complication after reverse shoulder arthroplasty, which results in inferior outcomes. There is a paucity of literature focusing on strategies to prevent acromion fracture in patients undergoing reverse shoulder arthroplasty. The goals of the present study were to 1) create a model of weakened acromion bone by uniformly decreasing the bone volume in the acromion encompassing an area that corresponds to a Levy type 2 acromial fracture and 2) biomechanically evaluate a novel method of prophylactic fixation using threaded intramedullary pins.</div></div><div><h3>Methods</h3><div>Nine matched pairs of female fresh-frozen cadaveric scapulae were tested. After testing the native, intact acromion, a weakened acromion condition was created in the area that corresponded to a Levy type 2 acromial fracture using evenly spaced 1.8 mm drill holes, 2.5 mm apart, parallel to the glenoid line in the acromion. Testing was performed by simulating deltoid load. For the control side of the matched pair, the intact and weakened acromion stiffness was measured under cyclic loading followed by load to failure of the weakened acromion. For the prophylactic fixation study group, after cyclic testing of the intact and weakened acromion condition, two reinforcing 2.4 mm diameter threaded titanium compression pins were inserted. Cyclic loading of the pinned-weakened acromion was performed, followed by load to failure of the pinned-weakened acromion.</div></div><div><h3>Results</h3><div>Uniformly drilling cortical drill holes resulted in approximately 50% decreased bone volume, significantly decreased stiffness (<em>P</em> &lt; .05 for control and prophylactic fixation groups), and significantly greater deformation at peak load (<em>P</em> &lt; .05 both groups), indicating a valid model for acromion weakening. Prophylactic fixation with pinning of the weakened acromion resulted in superior biomechanical characteristics, including improved yield displacement (<em>P</em> = .004), yield load (<em>P</em> = .004), energy at yield (<em>P</em> &lt; .001), ultimate displacement (<em>P</em> = .003), and ultimate load (<em>P</em> = .005).</div></div><div><h3>Conclusion</h3><div>Uniformly drilling holes in the area of a Levy type 2 acromion fracture can create sufficient bone volume loss that results in a biomechanically reproducible weakened acromion model. Prophylactic fixation of a weakened acromion with two 2.4 mm threaded titanium pins resulted in superior biomechanical characteristics, which helped to reduce complete, displaced fracture in the region of interest compared to the weakened acromion without pins. Future clinical studies are necessary to provide validation of the utility of this technique in vivo.</div></div>","PeriodicalId":34444,"journal":{"name":"JSES International","volume":"10 2","pages":"Article 101626"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146189215","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}