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Cubitus valgus
Cubitus valgus is a deformity where the forearm is abnormally abducted in relation to the upper arm, causing a visible defect. It is rarely seen and can result as a complication from a fractured lateral humerus condyle. Causes include previous fractures or injuries to the lower humerus that result in malunion, interference with epiphyseal growth on the lateral side, or Turner's syndrome. Left untreated, it can lead to a secondary tardy nerve palsy from friction neuritis of the ulnar nerve. Treatment options range from no intervention for mild cases, to a medial closed wedge osteotomy for moderate to severe cases, or anterior transposition surgery for any tard
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Cubitus valgus
- 1.
- 2. • When carryingangle is increased so that the forearm abducted excessively in relation to the upper end the deformity is known as cubitus valgus • Rare • Seen as a complication of fracture of lateral condyle of humerus
- 4. Causes • Previous fractureof lower end of humerus or capitulum with malunion • Interference with epiphyseal growth on lateral side from injury or infection • Turners syndrome
- 5. Clinical features • Visibledefect-cosmetic • Secondary-tardy nerve palsy
- 7. Tardy nerve palsy •Also called traumatic ulnar neuritis • Because of friction neuritis ulnar nerve moves over the medial epicondyle every time the elbow is flexed and extended • C/f-tingling and numbness in the distribution of ulnar nerve • In complete lesion there may be paralysis of intrinsic muscles supplied by ulnar nerve
- 8. Treatment • Mild deformity-notreatment • Moderate to severe-medial closed wedge osteotomy • Tardy nerve palsy-Anterior transposition of ulnar nerve