Nonoperative Treatment of Primary Anterior Shoulder Dislocation in Patients Forty Years of Age and Younger: A Prospective Twenty-five-Year Follow-up

• Published in: Journal of bone and joint surgery. American volume 2008-05, Vol.90 (5), p.945-952
• Main Authors: Hovelius, Lennart, Olofsson, Anders, Sandström, Björn, Augustini, Bengt-Göran, Krantz, Lars, Fredin, Hans, Tillander, Bo, Skoglund, Ulf, Salomonsson, Björn, Nowak, Jan, Sennerby, Ulf
• Format: Article
• Language: English
• Subjects: Adolescent; Adult; Athletic Injuries - therapy; Child; Female; Humans; Immobilization; Logistic Models; Male; MEDICIN; Medicin och hälsovetenskap; MEDICINE; Multivariate Analysis; Prospective Studies; Recurrence; Risk Factors; Shoulder Dislocation - therapy; Treatment Outcome
• ISSN: 0021-9355; 1535-1386; 1535-1386
• DOI: 10.2106/JBJS.G.00070

BackgroundDuring 1978 and 1979, we initiated a prospective multicenter study to evaluate the results of nonoperative treatment of primary anterior shoulder dislocation. In the current report, we present the outcome after twenty-five years.MethodsTwo hundred and fifty-five patients (257 shoulders) with an age of twelve to forty years who had a primary anterior shoulder dislocation were managed with immobilization (achieved by tying the arm to the torso with use of a bandage) or without immobilization. All 227 living patients (229 shoulders) completed the follow-up questionnaire, and 214 patients completed the Disabilities of the Arm, Shoulder and Hand (DASH) questionnaire.ResultsNinety-nine (43%) of 229 shoulders had not redislocated, and seventeen (7%) redislocated once. Thirty-three recurrent dislocations had become stable over time (14.4%), and eighteen were considered to be still recurrent (7.9%). Sixty-two shoulders (27%) had undergone surgery for the treatment of recurrent instability. Immobilization after the primary dislocation did not change the prognosis. Only two of twenty-four shoulders with a fracture of the greater tuberosity at the time of the primary dislocation redislocated (p < 0.001). When shoulders with a fracture of the greater tuberosity were excluded, forty-four (38%) of 115 shoulders in patients who had been twelve to twenty-five years of age at the time of the original dislocation and sixteen (18%) of ninety shoulders in patients who had been twenty-six to forty years of age had undergone surgical stabilization. At twenty-five years, fourteen (23%) of sixty-two shoulders that had undergone surgical stabilization were in patients who subsequently had a contralateral dislocation, compared with seven (7%) of ninety-nine shoulders in patients in whom the index dislocation had been classified as solitary (p = 0.01). Gender and athletic activity did not appear to affect the redislocation rate; however, women had worse DASH scores than men did (p = 0.006).ConclusionsAfter twenty-five years, half of the primary anterior shoulder dislocations that had been treated nonoperatively in patients with an age of twelve to twenty-five years had not recurred or had become stable over time.Level of EvidencePrognostic Level I. See Instructions to Authors for a complete description of levels of evidence.