24May 2023
Coxa Vara Deformity in Fibrous Dysplasia/McCune‐Albright Syndrome: Prevalence, Natural History and Risk Factors: A Two‐Center Study

Coxa Vara Deformity in Fibrous Dysplasia/McCune‐Albright Syndrome: Prevalence, Natural History and Risk Factors: A Two‐Center Study

This study examined the prevalence and risk factors associated with coxa vara deformity in patients with fibrous dysplasia/McCune‐Albright syndrome (FD/MAS). The study, conducted at the National Institutes of Health and Leiden University Medical Center, included patients with FD/MAS, proximal femur involvement, available X-rays, and age below 30. X-rays were evaluated for the neck-shaft angle (NSA), and varus deformity was defined as NSA below age-specific values. Risk factors were analyzed through case-control analysis and a mixed-effects model. The study found that 36% of patients had coxa vara deformity. Risk factors included MAS presence, high femur involvement, calcar destruction, radiolucency, NSA below 120 degrees, and age below 15.

  • #orthopaedics

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