Factors That Determine Supination Strength Following Distal Biceps Repair

• DOI: 10.2106/jbjs.15.01025
• Publication Date: 2016-07-20T18:13:02Z
• Authors: Christopher C. Sc...; Brandon T. Brown; Lars M. Qvick; Rafal Z. Stacowicz; Carmen R. Latona; Mark Carl Miller
• Keywords: Biceps tendon

Supination weakness commonly occurs after a distal biceps repair. The goal of this study was to identify factors that could influence postoperative supination strength through full arc forearm rotation.Fifteen patients were prospectively studied and underwent repair using posterior approach; cohort compared with randomized selection 17 anterior subjects. All magnetic resonance imaging (MRI). Quantitative MRI analysis determined the insertion site angle tendon supinator fat content. measured in 3 positions. A multiple linear regression performed determine effect all on strength.The group had significantly higher nonanatomic than control (p < 0.001). greater content ≤ 0.019) both group. After repair, = 0.027). Multiple (r 0.765) found an anatomic reinsertion ruptured (β 1.159; p 0.001), approach 0.484; 0.043), limited muscle 0.360; 0.013) significant predictors restoration 60° supination.Future directions for techniques should focus restoring reattachment while limiting damage.Therapeutic Level III. See Instructions Authors complete description levels evidence.