title: Osteonecrosis and femoro-acetabular impingement: sequelae of developmental dysplasia of the hip.
abstract: A 2-year-old girl with developmental dysplasia of the right hip underwent open reduction and capsulorrhaphy via the anterior approach with hip spica casting in an internally rotated position. During her 26 years of follow-up, she was found to have osteonecrosis and subsequently cam-type femoro-acetabular impingement at 28 years of age. She was treated with surgical dislocation of the hip and osteochondroplasty to recreate the normal contour of the head and neck offset.
authors.affiliation: Department of Orthopaedics and Traumatology, Queen Mary Hospital, Hong Kong, Hong Kong.
authors.forename: Jason Pui Yin
authors.initials: JP
authors.lastname: Cheung
authors.forename: Wang
authors.initials: W
authors.lastname: Chow
authors.forename: Michael
authors.initials: M
authors.lastname: To
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D057925:Femoracetabular Impingement / Q000000981:diagnostic imaging* / Q000601:surgery; D006618:Hip Dislocation, Congenital / Q000000981:diagnostic imaging / Q000601:surgery*; D006801:Humans; D010020:Osteonecrosis / Q000000981:diagnostic imaging* / Q000601:surgery; D011183:Postoperative Complications / Q000000981:diagnostic imaging* / Q000601:surgery; D011859:Radiography