title: The histology of a failed shelf procedure.
abstract: Clinical, radiographic and histologic findings are reported in a patient who underwent a hip shelf procedure 24 years previously. While the histologic observations confirm the presence of metaplasia of the surgically formed articular surface to fibrocartilage, there are superadded degenerative changes morphologically similar to those seen in degenerative arthritis.
authors.affiliation: Stanford University Medical Center, Division of Orthopaedic Surgery, California.
authors.forename: J T
authors.initials: JT
authors.lastname: Smith
authors.forename: S B
authors.initials: SB
authors.lastname: Goodman
authors.forename: V L
authors.initials: VL
authors.lastname: Fornasier
mesh_terms: D000328:Adult; D006618:Hip Dislocation, Congenital / Q000473:pathology / Q000601:surgery*; D006621:Hip Joint / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D010003:Osteoarthritis / Q000209:etiology / Q000473:pathology* / Q000601:surgery; D011183:Postoperative Complications / Q000209:etiology / Q000473:pathology*