Uncemented femoral revision arthroplasty using a modular tapered, fluted titanium stem: 5- to 16-year results of 163 cases

Journal article


Publication Details

Author(s): Wirtz DC, Gravius S, Ascherl R, Thorweihe M, Forst R, Noeth U, Maus UM, Wimmer MD, Zeiler G, Deml MC
Journal: Acta Orthopaedica
Publisher: Informa Healthcare
Publication year: 2014
Volume: 85
Journal issue: 6
Pages range: 562-9
ISSN: 1745-3674
eISSN: 1745-3682


Abstract


Due to the relative lack of reports on the medium- to long-term clinical and radiographic results of modular femoral cementless revision, we conducted this study to evaluate the medium- to long-term results of uncemented femoral stem revisions using the modular MRP-TITAN stem with distal diaphyseal fixation in a consecutive patient series.We retrospectively analyzed 163 femoral stem revisions performed between 1993 and 2001 with a mean follow-up of 10 (5-16) years. Clinical assessment included the Harris hip score (HHS) with reference to comorbidities and femoral defect sizes classified by Charnley and Paprosky. Intraoperative and postoperative complications were analyzed and the failure rate of the MRP stem for any reason was examined.Mean HHS improved up to the last follow-up (37 (SD 24) vs. 79 (SD 19); p<0.001). 99 cases (61%) had extensive bone defects (Paprosky IIB-III). Radiographic evaluation showed stable stem anchorage in 151 cases (93%) at the last follow-up. 10 implants (6%) failed for various reasons. Neither a breakage of a stem nor loosening of the morse taper junction was recorded. Kaplan-Meier survival analysis revealed a 10-year survival probability of 97% (95% CI: 95-100).This is one of the largest medium- to long-term analyses of cementless modular revision stems with distal diaphyseal anchorage. The modular MRP-TITAN was reliable, with a Kaplan-Meier survival probability of 97% at 10 years.



FAU Authors / FAU Editors

Forst, Raimund Prof. Dr. med.
Lehrstuhl für Orthopädie mit Orthopädischer Chirurgie


External institutions
Krankenhaus Rummelsberg
Pius-Hospital Oldenburg
Zeisigwaldkliniken Bethanien Chemnitz


How to cite

APA:
Wirtz, D.C., Gravius, S., Ascherl, R., Thorweihe, M., Forst, R., Noeth, U.,... Deml, M.C. (2014). Uncemented femoral revision arthroplasty using a modular tapered, fluted titanium stem: 5- to 16-year results of 163 cases. Acta Orthopaedica, 85(6), 562-9. https://dx.doi.org/10.3109/17453674.2014.958809

MLA:
Wirtz, Dieter C., et al. "Uncemented femoral revision arthroplasty using a modular tapered, fluted titanium stem: 5- to 16-year results of 163 cases." Acta Orthopaedica 85.6 (2014): 562-9.

BibTeX: 

Last updated on 2018-08-10 at 08:23