Bone Cancer Research Today is a free monthly online journal that collates and summarizes the latest research about Bone Cancer, including details on symptoms, types, treatment.

Acetabular development after bipolar hemiarthroplasty for osteosarcoma in children.

Manoso MW, Boland PJ, Healey JH, Tyler W, Morris CD

Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA.

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.

Published 5 December 2005 in J Bone Joint Surg Br, 87(12): 1658-62.
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