MRI examination of the glenohumeral joint after traumatic primary anterior dislocation

Primary traumatic anterior dislocation of the shoulder in young patients has a high recurrency rate. There are varying opinions on the pathology behind the recurrences. The aim of this study was to describe the MRI characteristics of the acute lesion, and at 6-month follow-up. Thirty patients aged 18–30 years with primary traumatic anterior dislocation of the shoulder were randomized into two groups. One group was treated with acute arthroscopic lavage within 10 days. The control group was treated with traditional non-operative therapy. All patients underwent acute MRI within 10 days and before the arthroscopic lavage, and again at the 6-month follow-up, for evaluation of the lesions. The acute MRI verified Hill-Sachs lesions in all patients. At the 6-month follow-up MRI, there was no change in the size of the Hill-Sachs lesion. This was also the case with the six patients in the control group with recurrent dislocations during the first 6 months. Twenty-nine patients (97%) had joint effusion at the acute MRI, which was very useful for evaluation of the soft tissue pathology. The glenohumeral ligaments were detached in 20/30 patients (66%), and the labrum in 22/30 patients (70%). A capsulolabral detachment classified as a Baker 3 lesion was seen in 16/30 (53%) of the patients, including all six patients with recurrent dislocation. At the 6-month control, only 3/30 (10%) of the patients had joint effusion for adequate evaluation of the labrum and ligamentous pathology. A Hill-Sachs lesion was found in 100% of the patients after primary dislocation, and recurrent dislocations did not change the size of the lesion. The study supports the opinion that this lesion is overlooked in the clinical situation. The joint effusion at the acute MRI was of utmost importance for evaluation of the soft tissue pathology. The 6-month MRI control was therefore considered inconclusive when evaluating capsulolabral lesions, due to lack of effusion. MRI arthrography with contrast administration would have been very helpful at the 6-month examination.     

关节镜下GⅡ锚钉固定治疗肩关节Bankart损伤

目的探讨关节镜下GⅡ锚钉固定治疗肩关节Bankart损伤的疗效。方法对3例肩关节不同类型Bankart损伤的患者行关节镜下GⅡ锚钉固定、缝合关节囊重建撕裂的盂唇。术后按常规康复治疗。结果 3例均获随访,时间分别为9、11、8个月,无复发脱位。UCLA评分由术前23.4、21.8、24.7分提高至术后32.8、32.5、40.2分,差异有统计学意义（P〈0.01）。结论关节镜下GⅡ锚钉固定治疗肩关节Bankart损伤切口小,愈合快,疗效好。     

肩关节镜下行Bankart术治疗复发性肩关节前脱位

目的 探讨肩关节镜下Bankart术治疗复发性肩关节前脱位的适应症、手术要点和疗效。方法 对我科2007年1月至2009年7月,15例复发性肩关节前脱位的临床资料进行回顾性分析。15例均为肩关节单方向不稳定,左侧4例,右侧11例,术前脱位次数为2-30次,平均为11.7次。所有患者均采用锚钉进行关节镜下Bankart术,术后采用Constant-Murley法进行评分。结果 术后随访10-24个月,平均12.5个月,所有患者均未出现切口感染及关节腔积血等并发症。终末随访时平均Constant-Murley评分较术前明显改善（术前79.3±4.0对术后95.0±2.2,p<0.01）。终末随访时所有病例均未发生再脱位,术后无残存恐惧试验阳性。结论 关节镜下Bankart术是治疗复发性肩关节前脱位的有效方法之一。