Review Question - QID 2932

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Lateral Epicondylitis (Tennis Elbow) Anatomy Common extensor origin QID: 2932 (OBQ09.119)

QID 2932 (Type "2932" in App Search)

Which of the following structures shares the same origin site as the tendon that undergoes angiofibroplastic hyperplasia during the pathogenesis of tennis elbow?

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Brachioradialis

33%

1498/4564

Anconeus

58%

2636/4564

Annular ligament

161/4564

Flexor carpi ulnaris

194/4564

Palmaris longus

54/4564

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Lateral epidondylitis is classically thought to be caused by histopathologic angiofibroblastic hyperplasia at the origin of the extensor carpi radialis brevis. ECRB originates from the common extensor wad, that also includes ECRL, ED, ECU. The anconeus shares the same attachment site at the lateral epicondyle as the ECRB (as shown in Illustration A).

The classic Level 4 study by Nirschl reviewed 1,213 patients with tennis elbow of which 88 elbows underwent surgery. Immature fibroblastic and vascular infiltration of the origin of the ECRB was found, excised, and tendon repaired by Nirschl with an improvement rate of 97%.

ILLUSTRATIONS:

Tennis elbow. The surgical treatment of lateral epicondylitis.

R P Nirschl,

F A Pettrone

Shoulder & Elbow
- Lateral Epicondylitis (Tennis Elbow)

R P Nirschl, JBJS 1979

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