外傷性肩関節前方不安定症における骨性Bankart損傷の修復状態 －3D-CTでの評価－

概要

論文の詳細を見る
Background: Traumatic anterior shoulder instability (TASI) is associated with approximately 50% of chronic bony Bankart (CBB) lesions; however, an optimal repair method for CBB lesions is not known. This retrospective study compared the postoperative instability and repair of TASI-related CBB lesions by using 3-dimensional-computed tomography (3D-CT). Methods: We operated on 91 patients for TASI from 2007 to 2010, and we reviewed the results for CBB repair of TASI in 40 patients 44% (38 males; 2females). The mean values for age at the time of operation and follow-up period were 23.3 years old (range, 14-46 years) and 19.8 months (range, 12-30 months), respectively. Arthroscopic Bankart repair and open inferior capsular shift were used for 33 and 7 patients, respectively. Bone loss in the anterior glenoid and nonunion rate of the bony fragment were estimated using pre- and postoperative 3D-CT, and postoperative instability (reinstability and apprehension) was determined to assess bony fragment repair. Results: The CBB lesions were classified into the nonunion (32 patients, 80%) and union (8 patients, 20%) types. The average bone loss in the lower circular glenoid portion was 16.9% (range, 3-37%). Shoulder dislocation and subluxation did not recur; however, positive anterior apprehension was noted in 3 patients (7.5%) who had a large bony fragment (average bone loss was 32.4%, range, 25-37%) and insufficient improvement of the bony fragment and residual nonunion. Conclusion: Sufficient improvement of the bony fragment and bone union is required to relieve anterior instability in TASI-related CBB lesions.

外傷性肩関節前方不安定症における骨性Bankart損傷の修復状態<BR>－3D-CTでの評価－

スポンサーリンク

概要

著者

関連論文

スポンサーリンク