Correlations of coracohumeral ligament and range of motion restriction in patients with recurrent anterior glenohumeral instability evaluated by magnetic resonance arthrography

详细信息    查看全文

• 作者：Kenji Kanazawa ; MD ; PhD^a ; Yoshihiro Hagiwara ; MD ; PhD^b ; ^{hagi@med.tohoku.ac.jp} ; Nobuaki Kawai ; MD^c ; Takuya Sekiguchi ; MD^b ; Masashi Koide ; MD^b ; Akira Ando ; MD ; PhD^d ; Hiroyuki Sugaya ; MD ; PhD^c ; Eiji Itoi ; MD ; PhD^b
• 关键词：Level II ; Retrospective Cohort Design ; Prognosis Study
• 刊名：Journal of Shoulder and Elbow Surgery
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：26
• 期：2
• 页码：233-240
• 全文大小：772 K
• 卷排序：26

文摘

Evaluation of range of motion (ROM) restriction before treatment of shoulder disorders is important for predicting the final functional outcomes. The purpose of this study was to investigate correlations of thickness of the coracohumeral ligament (CHL) and ROM restriction in patients with recurrent anterior glenohumeral instability.MethodsBetween January 2005 and March 2015, 181 shoulders (137 male and 44 female patients; mean age, 29.3 years) with recurrent anterior glenohumeral instability treated with an arthroscopic Bankart repair were enrolled in this study. We evaluated preoperative ROM, thickness of the CHL, and obliteration of the subcoracoid fat triangle on magnetic resonance arthrography. ROM measurements, including forward flexion (FF), external rotation with the arm at the side (ER), and hand behind the back (HBB), were made in a standing position.ResultsThere were significant negative correlations between FF and age (P < .001) and between HBB and age (P < .001) but not between ER and age (P = .11). The thickness of the CHL significantly increased with age (P < .001). FF, ER, and HBB were significantly restricted in patients with obliteration compared with those without obliteration (P < .001, P = .004, P < .001, respectively).ConclusionsObliteration of the subcoracoid fat triangle and the thickness of the CHL positively correlated with ROM restrictions, and these changes were greater with age in patients with recurrent anterior glenohumeral instability.