Innervation of the supinator muscle and its relationship to two-incision distal biceps tendon repair: an anatomic study.

Reinsertion of the ruptured distal biceps tendon has been performed using either a single-anterior incision or a two-incision approach. A systematic review of these two repair methods has identified a higher incidence of supination weakness following the two-incision approach. The objective of this study was to describe the innervation of the supinator muscle and its implications regarding a two-incision distal biceps repair.

Repair of the ruptured distal biceps tendon: a systematic review.

Background: Reinsertion of the acutely ruptured distal biceps is the preferred method of treatment for most patients and is designed to restore flexion and supination strength. It is not clear which, if any, method of fixation is superior or whether a 2-incision or single-incision approach is associated with fewer complications or better outcomes.

Hypotheses: (1) There is no difference in biomechanical performance between currently used fixation methods, (2) there is no difference in incidence of complications between the 2-incision and single-incision approach, and (3) there is no difference in clinical outcomes between the 2-incision and single-incision approach.