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Titolo:
FAILURE OF TOTAL HIP-ARTHROPLASTY WITH A PRECOATED PROSTHESIS - 4-YEAR TO 11-YEAR RESULTS
Autore:
DOWD JE; CHA CW; TRAKRU S; KIM SY; YANG CH; RUBASH HE;
Indirizzi:
MASSACHUSETTS GEN HOSP,DEPT ORTHOPAED SURG,WHITE BLDG,ROOM 601,55 FRUIT ST BOSTON MA 02114 MASSACHUSETTS GEN HOSP,DEPT ORTHOPAED SURG BOSTON MA 02114 UNIV PITTSBURGH,MED CTR,DEPT ORTHOPAED SURG PITTSBURGH PA 00000 UNIV PITTSBURGH,MED CTR,DIV ADULT RECONSTRUCT SURG PITTSBURGH PA 00000
Titolo Testata:
Clinical orthopaedics and related research
fascicolo: 355, , anno: 1998,
pagine: 123 - 136
SICI:
0009-921X(1998):355<123:FOTHWA>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
10-YEAR FOLLOW-UP; IMPROVED CEMENTING TECHNIQUES; FEMORAL COMPONENT; RADIOGRAPHIC ANALYSIS; REPLACEMENT; FIXATION; STRAIN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
64
Recensione:
Indirizzi per estratti:
Citazione:
J.E. Dowd et al., "FAILURE OF TOTAL HIP-ARTHROPLASTY WITH A PRECOATED PROSTHESIS - 4-YEAR TO 11-YEAR RESULTS", Clinical orthopaedics and related research, (355), 1998, pp. 123-136

Abstract

A series of early femoral component failures prompted a detailed retrospective clinical and radiographic review of 176 hybrid cemented total hip arthroplasties using a polymethylmethacrylate coated femoral prosthesis. All surgeries were performed using third generation cement techniques. Average length of followup was 6.3 years (range, 3-12 years). Twenty-one patients died, and one underwent revision surgery becauseof sepsis. Of the remaining 154 total hip arthroplasties, 23 (15%) ofthe femoral components failed (21 revised, two definitely loose). Theaverage time to revision was 3.9 years. None of the acetabular components failed. Comparison between the failure and nonfailure groups revealed that poor cement mantles (Grades C or D) with distal cement mantle deficiencies were statistically significant predictors of femoral failure. The mast common mechanism of failure was progressive, circumferential cement-bone interface osteolysis with relative preservation of the cement-metal interface. Debonding of the cement column from the prosthesis was a late finding and occurred in only 45% of failed cases. Incorporating the techniques of centralization and centrifugation significantly improved clinical results. Strengthening of the cement-prosthesis interface may magnify the deleterious effects of a poor cement mantle and predisposes the cement-bone interface to failure.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 12/07/20 alle ore 03:11:50