Volume 21, Issue 6, Supplement , Pages 83-86, September 2006
The Use of a Trabecular Metal Acetabular Component and Trabecular Metal Augment for Severe Acetabular Defects
Abstract
Stable acetabular fixation cannot be reliably achieved with the use of a hemispherical porous coated component alone in patients with a Paprosky type IIIa defect. The purpose of the present study was to determine the short-term results of a tantalum porous coated hemispherical acetabular component supported with a modular tantalum augment in Paprosky type IIIa defects. A total of 28 patients (28 hips) were treated for a type IIIa acetabular defect between 2001 and 2003 with the use of a trabecular metal acetabular component supported with a modular, superiorly placed trabecular metal augment. At an average of 3.1 years follow-up, 1 patient required rerevision for recurrent instability. The remaining hips remain radiographically stable. Clinically, the patients' modified Postel Merle d'Aubigne score improved from 6.8 preoperatively to 10.6 postoperatively. The use of a trabecular metal acetabular component with a superiorly placed trabecular metal augment demonstrates encouraging short-term results for Paprosky type IIIa acetabular defects.
Key words: hip, revision, acetabulum
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No benefits or funds were received in support of the study.
PII: S0883-5403(06)00381-0
doi:10.1016/j.arth.2006.05.008
© 2006 Published by Elsevier Inc.
Volume 21, Issue 6, Supplement , Pages 83-86, September 2006
