title: Vascularized iliac bone graft for avascular necrosis of the femoral head.
abstract: This is a followup study of 31 hips in 24 patients from 2 to 11 years after receiving a vascularized iliac bone graft for nontraumatic avascular necrosis of the femoral head. The clinical results according to the Merle d'Aubigne score were satisfactory in 24 (77%) of the hips, whereas the radiographic success rate for all hips was 58%. The extent of the lesion as shown on anteroposterior radiographs was predictive of the eventual outcome. Seven (39%) of 18 hips with a lateral type lesion had satisfactory results, whereas 11 (85%) of 13 hips with a medial type lesion had satisfactory results. All of the hips with a medial type lesion and a lateral head index of greater than 12% had satisfactory results. For the success of this procedure, the lateral buttress of the normal portion in the femoral head was necessary.
authors.affiliation: Department of Orthopaedic Surgery, Niigata University School of Medicine, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Ishizaka
authors.forename: M
authors.initials: M
authors.lastname: Sofue
authors.forename: Y
authors.initials: Y
authors.lastname: Dohmae
authors.forename: N
authors.initials: N
authors.lastname: Endo
authors.forename: H E
authors.initials: HE
authors.lastname: Takahashi
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D016025:Bone Transplantation / Q000379:methods* / Q000534:rehabilitation; D004185:Disability Evaluation; D005260:Female; D005271:Femur Head Necrosis / Q000145:classification / Q000000981:diagnostic imaging / Q000601:surgery*; D005500:Follow-Up Studies; D006801:Humans; D007085:Ilium / Q000098:blood supply* / Q000637:transplantation; D008124:Locomotion; D008297:Male; D008875:Middle Aged; D011859:Radiography