Status of the Contralateral Rotator Cuff in Patients Undergoing Rotator Cuff Repair
- 4 March 2015
- journal article
- research article
- Published by SAGE Publications in The American Journal of Sports Medicine
- Vol. 43 (5), 1091-1098
- https://doi.org/10.1177/0363546515571554
Abstract
Although the prevalence of rotator cuff tear (RCT) in the general population has been analyzed, little information is available on the status of the opposite-side rotator cuff in patients who have undergone arthroscopic rotator cuff repair. To identify the characteristics of the contralateral shoulder and to identify factors associated with RCT of the contralateral shoulder in patients who underwent surgery for symptomatic RCT. The hypothesis was that the prevalence of RCT in the contralateral shoulder would be higher in patients with increasingly larger cuff tears requiring surgical intervention. Case series; Level of evidence, 4. The study cohort consisted of 140 patients with RCT who underwent arthroscopic rotator cuff repair. Opposite-shoulder rotator cuff tendons of all patients were evaluated by ultrasonography. Demographic information and factors related to contralateral RCT were investigated, and risk factors associated with contralateral RCT were assessed. Of the 140 patients who underwent arthroscopic rotator cuff repair, 54 (38.6%) had an RCT of the contralateral shoulder. Of 51 patients with partial-thickness and small-sized full-thickness tears of the operated shoulder, 35 (68.6%) had no tears; 14 (27.5%) had partial-thickness tears; and 2 (3.9%) had small-sized full-thickness tears of the contralateral shoulder. Of 75 patients with medium-sized full-thickness tears, 43 (57.3%) had no tears; 12 (16%) had partial-thickness tears; and 20 (26.7%) had full-thickness tears of the contralateral shoulder. Of 14 patients with large to massive full-thickness tears, 8 (57.1%) had no tears; 1 (7.1%) had a partial-thickness tear; and 5 (35.7%) had full-thickness tears of the contralateral shoulder. The prevalence of RCT of the contralateral shoulder differed significantly among groups classified by tear size (P = .007). The mean American Shoulder and Elbow Surgeons score was significantly lower in the RCT than in the nontear group (55.8 ± 16.9 vs 61.6 ± 13.3; P = .03). Of 29 subjects with symptomatic tears involving the nondominant arm, 17 (58.6%) had contralateral asymptomatic RCT, compared with 37 of 111 (33.3%) subjects with symptomatic tears involving the dominant arm (P = .007). The prevalence of RCT of the contralateral asymptomatic shoulder tends to be higher in patients with more symptomatic RCT on one side, in patients with medium-sized or larger RCT in the operated shoulder, and in patients with symptomatic RCT in the nondominant arm.This publication has 16 references indexed in Scilit:
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