Abstract
Different ultrasound approaches have been proposed to evaluate the distal biceps brachii tendon, such as lateral, posterior, medial, and anterior, all allowing good visualization of the distal biceps tendon and its pathologic appearances. Here we describe a new method of ultrasound evaluation of the distal biceps tendon insertion with the patient in the so-called crab position. The crab position is used to evaluate the posterior compartment of the elbow but also the lateral and medial compartments. This position allows for coverage of 75% the elbow in a single position, with less discomfort for the patient and a fair amount of saved time. In this position, after the evaluation of the common extensor tendon in the long axis, turning the transducer 90° and moving it distally allows for optimal visualization of the distal biceps brachii tendon in the axial plane. It is a simple, quick approach that allows for excellent visualization of the insertion of the distal biceps brachii tendon while avoiding an anisotropic effect.
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