Avtor/Urednik		Moličnik, Andrej; Hanc, Marko; Rečnik, Gregor; Krajnc, Zmago; Rupreht, Mitja; Fokter, Samo K.
Naslov		Porous tantalum shells and augments for acetabular cup revisions
Tip		članek
Vol. in št.		Letnik 24, št. 6
Leto izdaje		2014
Obseg		str. 911-917
ISSN		1633-8065 - European journal of orthopaedic surgery & traumatology : orthopedie traumatologie
Jezik		eng
Abstrakt		Purpose The purpose of this study was to evaluate early functional results of revision hip arthroplasty with pelvic bone loss revised with porous tantalum (PT) acetabular components. Methods Twenty-five consecutive patients (25 hips) with loose acetabular components after total hip arthroplasty with a minimum of Paprosky IIa pelvic bone loss treated with PT cups with and without modular augments were retrospectively reviewed. Clinical outcomes were assessed using Harris hip score, and Western Ontario and McMaster Universities scores. Mean follow-up was 20.5 months and no patient was lost during follow-up. Results The average Harris hip score, and Western Ontario and McMaster Universities scores improved from 40 and 36 preoperatively to 79 and 73 postoperatively, respectively. No statistically significant differences in functional outcome scores were found between the group with moderate (Paprosky IIa, b) and severe (Paprosky IIc or more) acetabular bone loss. At the most recent radiographic evaluation, 24 cups demonstrated no lucent lines and 1 cup had lucent lines but remained well fixed. One cup was revised for traumatic dislocation but was found well fixed at open reduction. There were no septic or aseptic failures in this series. Conclusion While awaiting longer-term follow-up studies, trabecular metal components show sufficient primary stability and appear suitable for revision hip arthroplasty with acetabular bone loss.
Proste vsebinske oznake		kolk artroplastika acetabulum revizija tantal, porozni trabekula ortopedski kirurški postopki