Arthroscopic management of anterior labrum periosteal sleeve avulsion (ALPSA) lesions: A case series with improved clinical outcomes using a modified technique

Abstract

IntroductionAnterior labrum periosteal sleeve avulsion (ALPSA) is the avulsion of the labrum and of the non-disrupted periosteum with the subsequent healing of the labrum in a medialized nonfunctional position on the glenoid neck. ObejctiveIn this study, a modified technique for arthroscopic repair of ALPSA lesions is presented, along with post operative clinical results and follow up. Method72 patients who underwent this procedure were included in this study. Patients with multidirectional instability, more than 20% of glenoid bone loss, and bony Bankart lesions were excluded. Results and conclusionIt was concluded that with this modified technique, a lower recurrence rate post arthroscopic repair of ALPSA lesions was seen with only 4 patients having postoperative recurrence of glenohumeral dislocation which amounts to 5.6%. Moreover, the data also showed a statistically significant improvement of 35.23% between the pre- and postoperative ASES scores.