coxa valga
Pronunciation: COCK-sah VAL-gah
A hip deformity characterized by an abnormally increased angle between the femoral neck and shaft, typically greater than 135 degrees.
Full Definition
Coxa valga is a hip deformity where the neck-shaft angle of the proximal femur exceeds the normal range of 120-135 degrees, often measuring 140 degrees or more. This condition can be congenital or acquired, and may result from neuromuscular disorders, paralysis, or developmental abnormalities. The increased angle can lead to hip instability, altered biomechanics, and potential complications including hip dislocation or degenerative changes. In pediatric orthopedics, coxa valga often requires careful monitoring and may necessitate surgical correction through varus osteotomy to restore normal hip mechanics and prevent long-term complications.
Usage
Usage note: Always specify the angle measurement when documenting coxa valga; distinguish from coxa vara which involves decreased neck-shaft angle.
In Context
- "The radiographs revealed bilateral coxa valga with neck-shaft angles measuring 145 degrees." — Radiology report
- "Patients with cerebral palsy frequently develop coxa valga secondary to muscle imbalance around the hip." — Clinical assessment note