Original methods to move femoral head medially and caudally after rotational acetabular osteotomy: especially to use ceramic spacer

Nozawa, Masahiko; Shitoto, Katsuo; Mastuda, Keiji; Maezawa, Katuhiko; Ogawa, Seiki; Yuasa, Takahito; Aritomi, Kentaro; Kurosawa, Hisashi
July 2006
Archives of Orthopaedic & Trauma Surgery;Jul2006, Vol. 126 Issue 6, p421
Academic Journal
The operative procedures chosen to treat arthrosis in patients with severe acetabular dysplasia vary among orthopaedic surgeons, particularly in younger patients. We operated on 450 hips with acetabular dysplasia by using the rotational acetabular osteotomy (RAO) method of Ninomiya and Tagawa by Ninomiya (Clin Orthop 247:127 137, 1989). In this report, we describe our technique of performing RAO with hydroxyapatite tricalcium phosphate-composite (HAP-TCP) blocks to achieve good acetabular coverage and the results of this procedure in 16 hips with severe dysplasia, including nine with advanced arthrosis. Adequate coverage of the osteotomized acetabulum was maintained and symptoms, especially pain, showed marked improvement at the latest follow up.


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