title: Criteria for arthroscopic treatment of anterior instability of the shoulder: a prospective study.
abstract: We prospectively evaluated 61 patients treated arthroscopically for anterior instability of the shoulder at a mean follow-up of 44.5 months (24 to 100) using the Rowe scale. Those with post-operative dislocation or subluxation were considered to be failures. Logistic regression analysis was used to identify patients at increased risk of recurrence in order to develop a suitable selection system. The mean Rowe score improved from 45 pre-operatively to 86 at follow-up (p < 0.001). At least one episode of post-operative instability occurred in 11 patients (18%), although their stability improved (p = 0.018), and only three required revision. Subjectively, eight patients were dissatisfied. Age younger than 28 years, ligamentous laxity, the presence of a fracture of the glenoid rim involving more than 15% of the articular surface, and post-operative participation in contact or overhead sports were associated with a higher risk of recurrence, and scored 1, 1, 5 and 1 point, respectively. Those patients with a total score of two or more points had a relative risk of recurrence of 43% and should be treated by open surgery.
authors.affiliation: Department of Orthopaedic Surgery, Fundación Jiménez Diaz, Avenue Reyes Católicos 2, 28040 Madrid, Spain. ecalvo@fjd.es
authors.forename: E
authors.initials: E
authors.lastname: Calvo
authors.forename: J J
authors.initials: JJ
authors.lastname: Granizo
authors.forename: D
authors.initials: D
authors.lastname: Fernández-Yruegas
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001182:Arthroscopy / Q000379:methods; D005260:Female; D006801:Humans; D007593:Joint Instability / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D017060:Patient Satisfaction; D011183:Postoperative Complications / Q000209:etiology / Q000503:physiopathology; D011446:Prospective Studies; D012008:Recurrence; D012044:Regression Analysis; D012307:Risk Factors; D012783:Shoulder Dislocation / Q000503:physiopathology / Q000601:surgery; D012785:Shoulder Joint / Q000503:physiopathology / Q000601:surgery*; D013177:Sports; D016896:Treatment Outcome