coxa vara
Pronunciation: KOK-sah VAR-ah
A hip deformity where the angle between the femoral neck and shaft is abnormally decreased (less than 120 degrees). Commonly affects pediatric patients and may require surgical intervention.
Full Definition
Coxa vara is a hip deformity characterized by a decreased neck-shaft angle of the femur, typically measuring less than 120 degrees compared to the normal range of 125-135 degrees. This condition can be congenital or acquired through various causes including developmental abnormalities, infections, or trauma. In pediatric orthopedics, coxa vara may lead to limb length discrepancy, altered gait patterns, and hip instability. Treatment options range from observation in mild cases to surgical correction through osteotomy procedures to restore normal hip mechanics and prevent long-term complications such as early arthritis.
Usage
Usage note: Always specify the measurement in degrees when describing severity; distinguish from coxa valga in clinical documentation.
In Context
- "The radiographs revealed bilateral coxa vara with neck-shaft angles measuring 115 degrees." — Radiology report
- "Progressive coxa vara in this 8-year-old patient warrants consideration for valgus osteotomy." — Surgical consultation note