Summary
Two hundred and fourteen patients who had 270 cementless hip prostheses were followed for 2 to 8 years. PCA (Porous-Coated Monatomic), AML (Monatomic Medullary Locking) and HGP (Harris-Galante-Porous) femoral stems and acetabular cups were used without any preference for the prostheses. The overall clinical results were similar for the three prostheses with average Harris hip scores of 93, 93 and 91 respectively. Four PCA prostheses had radiological aseptic loosening and one was revised because of polyethylene wear. There was no loosening in the AML and HGP prostheses. Pain in the thigh, usually slight, occurred in 17% of AML, 21% of PCA and 19% of HGP prostheses. Five years after operation, radiological changes such as migration, calcar remodelling and radiolucent lines were the same for the 3 prostheses, but bony ingrowth was greater with the AML femoral stems.
Résumé
Deux cents quatorze patients, porteurs de 270 prothèses de hanche non cimentées, ont été suivis de deux à huit ans. Les prothèses PCA, AML et HGP (Harris-Galante) ont été utilisées indifféremment. Dans l'ensemble les résultats cliniques de ces trois prothèses sont identiques. Cinq ans après l'opération la cotation de Harris était en moyenne de 93 pour l'AML, de 93 pour la PCA et de 91 pour l'HGP. Quatre prothèses PCA présentaient un descellement radiologique aseptique, dont un a été repris en raison de l'usure du polyéthylène. Aucun descellement n'a été observé dans les prothèses AML et HGP. Les douleurs de cuisse, habituellement légères, sont survenues dans 17% des prothèses AML, dans 23% des prothèses PCA et dans 19% des prothèses HGP. Cinq ans après l'opération les modifications radiologiques, telles que migration, remodelage du calcar, liserés, sont identiques pour ces trois prothèses. Cependant la repousse osseuse radiologique paraît plus marquée au niveau de la tige fémorale des prothèses AML.
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Hwang, S.K., Park, J.S. Cementless total hip arthroplasty with AML, PCA and HGP prostheses. International Orthopaedics 19, 77–83 (1995). https://doi.org/10.1007/BF00179964
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DOI: https://doi.org/10.1007/BF00179964