Acetabular development after bipolar hemiarthroplasty for osteosarcoma in children

M. W. Manoso, P. J. Boland, J. H. Healey, W. Tyler, C. D. Morris

Research output: Contribution to journalArticlepeer-review

Abstract

A retrospective analysis was performed of eight patients with an open triradiate cartilage, who underwent resection for osteosarcoma and reconstruction of the proximal femur with a hemiarthroplasty, in order to identify changes of acetabular development. An analysis of the centre-edge angle, teardrop-to-medial prosthesis distance, superior joint space, teardrop-to-superior prosthesis distance, degree of lateral translation, and arthritic changes, was performed on serial radiographs. The median age at the time of the initial surgery was 11 years (5 to 14). All patients developed progressive superior and lateral migration of the prosthetic femoral head. Following hemiarthroplasty in the immature acetabulum, the normal deepening and enlargement of the acetabulum is arrested. The degree of superior and lateral migration of the prosthetic head depends on the age at diagnosis and the length of follow-up.

Original languageEnglish (US)
Pages (from-to)1658-1662
Number of pages5
JournalJournal of Bone and Joint Surgery - Series B
Volume87
Issue number12
DOIs
StatePublished - Dec 2005
Externally publishedYes

ASJC Scopus subject areas

  • Surgery
  • Orthopedics and Sports Medicine

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