Two MRI results — joint capsule edema and thickness at the axillary recess, specifically — proved useful inside of predicting stiff shoulder inside individuals with rotator cuff tears, based on an ahead-of-print article found in the May dilemma of the United states Journal of Roentgenology (AJR).
Studying 106 sufferers with tiny to large (< 5 cm) full-thickness rotator cuff tears, besides joint capsule thickness and edema in the axillary recess, Yoon Yi Kim of Korea’s Veterans Health Services CLINIC assessed obliteration of the subcoracoid extra fat triangle, fatty degeneration of the torn rotator cuff muscle tissue, and level of retraction.
Tear location and sizing were based on MRI results and operative report, although associations between MRI results and preoperative passive flexibility (ROM) were evaluated with basic and numerous linear regression analyses and proportional chances logistic regression research.
As Kim and co-workers wrote: “There clearly was a significant, bad linear correlation between minimal ROM at forward elevation and thickness of the joint capsule in the glenoid percentage of the axillary recess (p = 0.018), exterior rotation and joint capsule edema inside of the humeral part of the axillary recess (p = 0.011), and internal rotation and joint capsule edema inside the glenoid percentage of the axillary recess (p = 0.007).”
Fatty degeneration (p = 0.003) was a completely independent predictor of small ROM on internal rotation. Meanwhile, male sexual intercourse (p = 0.041) and posterosuperior rotator cuff tear (p = 0.030) were independent predictors of shoulder ROM on outside rotation.
” This scholarly research,” Kim et al. observed, “because it could be the first to emphasize joint capsule abnormality on MRI simply because a factor related to stiff shoulder in people with full-thickness rotator cuff tears.”