12/06/2026
Shepherd’s Crook Deformity in Fibrous Dysplasia
This image shows the classic shepherd’s crook deformity of the proximal femur in fibrous dysplasia.
In fibrous dysplasia, normal bone is replaced by weak fibro-osseous tissue. With weight bearing, the proximal femur may bend into severe coxa vara, creating the curved shape that resembles a shepherd’s crook.
This deformity can cause pain, limp, limb-length discrepancy, and increased risk of pathological fracture.
Treatment can be difficult and may require corrective osteotomy with stable fixation to restore alignment and stability.