Returning to overuse activity following a supraspinatus and infraspinatus tear leads to joint damage in a rat model.

ABSTRACT: Large rotator cuff tears (supraspinatus and infraspinatus) are common in patients who perform overhead activities (laborers, athletes). In addition, following large cuff tears, these patients commonly attempt to return to pre-injury activity levels. However, there is a limited understanding of the damaging effects on the uninjured joint tissues when doing so. Therefore, the objective of this study was to investigate the effect of returning to overuse activity following a supraspinatus and infraspinatus tear on shoulder function and the structural and biological properties of the intact tendons and glenoid cartilage. Forty rats underwent 4 weeks of overuse followed by detachment of the supraspinatus and infraspinatus tendons and were then randomized into two groups: return to overuse or cag

SUBMITTER: Reuther KE 

PROVIDER: S-EPMC3713088 | biostudies-literature | 2013 Jul

REPOSITORIES: biostudies-literature