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

Please always quote using this URN: urn:nbn:de:bvb:20-opus-114555
  • Background and purpose - 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. Patients and methods - We retrospectively analyzed 163 femoral stem revisions performed between 1993 and 2001 with a mean follow-up of 10 (5-16) years. Clinical assessment includedBackground and purpose - 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. Patients and methods - 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. Results - 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). Interpretation - This is one of the largest medium- to longterm 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.show moreshow less

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Metadaten
Author: Dieter C. Wirtz, Sascha Gravius, Rudolf Ascherl, Miguel Thorweihe, Raimund Forst, Ulrich Noeth, Uwe M. Maus, Matthias D. Wimmer, Guenther Zeiler, Moritz C. Deml
URN:urn:nbn:de:bvb:20-opus-114555
Document Type:Journal article
Faculties:Medizinische Fakultät / Lehrstuhl für Orthopädie
Language:English
Parent Title (English):Acta Orthopaedica
ISSN:1745-3674
Year of Completion:2014
Schriftenreihe:Acta Orthopaedica 2014; 85 (6): 562–569. DOI 10.3109/17453674.2014.958809
Volume:85
Issue:6
Pagenumber:562 - 569
DOI:https://doi.org/10.3109/17453674.2014.958809
Pubmed Id:http://www.ncbi.nlm.nih.gov/pubmed?term=25175667
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 61 Medizin und Gesundheit / 610 Medizin und Gesundheit
Tag:bone loss; cement; distal fixation; follow-up; junction; prosthesis; register; replacement; roentgenographic assessment; total HIP-arthroplasty
Release Date:2015/06/30
Licence (German):License LogoCC BY-NC: Creative-Commons-Lizenz: Namensnennung, Nicht kommerziell