関節鏡視下 Bankart 修復術後成績に影響を与える因子の統計学的検討

概要

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Background: The purpose of this study is to evaluate clinical results of arthroscopic Bankart repair (ASBR) with a minimum of one-year follow-up and to perform statistical examination to find some factors that affected postoperative outcomes. Methods: We retrospectively investigated 47 patients (49 shoulders), who underwent ASBR using bioabsorbable suture anchors, for traumatic anterior shoulder instability with a minimum of one-year follow-up. 1 case who had recurrence after ASBR was excluded. The pre and postoperative Japanese Shoulder Society shoulder instability score (JSS-SIS) and Rowe score, and the range of motion of external rotation in external rotation at side (ERS) and external rotation at abduction (ERA) were mainly evaluated statistically. Results: The ANOVA analysis showed that the higher the age at ASBR, or the longer the period between primary dislocation and ASBR, significantly lowered the postoperative ERA. Multiple linear regression analysis revealed that an age older than 30 years old at ASBR significantly lowered the postoperative ERA and Rowe score, and the longer the period during primary dislocation and ASBR significantly lowered the postoperative ERS and JSS-SIS. Conclusion: This study suggested that the ASBR performed earlier would show better outcomes. Further investigation will be required.
日本肩関節学会の論文