This Article Full Text Full Text (PDF) Submit a response Alert me when this article is cited Alert me when eLetters are posted Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal My Folders Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Landor, I. Articles by Sosna, A. Search for Related Content PubMed PubMed Citation Articles by Landor, I. Articles by Sosna, A.

The Long Oblique Revision component in revision arthroplasty of the hip

¹ 1st Orthopaedic Clinic, Medical Faculty Charles, University, Prague V Úvalu 84, 150 05 Prague 5, Czech Republic.

Correspondence should be sent to Dr I. Landor at Na Vinobraní, 15, 106 00 Praha 10, Czech, Republic; e-mail: landor{at}atlas.cz

Migration of the acetabular component may give rise to oval-shaped bone defects in the acetabulum. The oblong implant is designed to fill these defects and achieve a stable cementless anchorage with no significant bone loss. We prospectively reviewed 133 oblong long oblique revision components at a mean follow-up of 9.74 years (0.6 to 14). All had been used in revisions for defects of type IIB to IIIB according to Paprosky. Aseptic loosening was the reason for revision in 11 cases (8.3%) and deep infection in seven (5.3%). The probability of implant survival over a 12-year follow-up estimated by the Kaplan-Meier method gave a survival rate of 0.85% respectively 0.90% when deep infection was excluded as the endpoint.

Our study supports the use of these components in defects from IIB to IIIA. The main precondition for success is direct contact of more than half of the surface of the implant with the host acetabular bone.