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Distal Biceps Tendon Disorders
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The distal biceps tendon insertions on the radial tubercle just distal to the raidal head. It supinates the forearm and is a secondary flexor of the elbow.
Distal Biceps Tendinopathy
Distal Biceps Tendon Rupture
Assessment
Injury can occur from forceful lifting or supination, and causes a sudden pain, which is felt in the antecubital fossa. It is the proximal ruptures that result in the Popeye sign, while distal ruptures cause swelling and bruising. There is usually tenderness over the radial tubercle, in the deep antecubital fossa, and the patient may have pain and weakness on resisted elbow flexion and forearm supination.
Perform the hook test. A positive finding is the absence of the distal biceps tendon
Management
Arrange for orthopaedic assessment for operative repair to restore supination strength.
