[The wear behavior of capsules and heads of CoCrMo casts in long-term implanted all-metal hip prostheses].
We conducted an investigation on total hip prostheses with cups and balls made of cast CoCrMo alloy that were implanted 10-20 years ago; our results showed that this metal/metal alloy showed very low wear and tear. In comparison, the polyethylen/metal alloy showed a 40 times higher wear in the polyethylene part. Based on these promising long-term clinical results, the metal/metal alloy is again of great interest for total hip prostheses.
Semlitsch
M
M
Abteilung Medizinaltechnik, Gebrüder Sulzer AG, Winterthur.
Streicher
R M
RM
Weber
H
H
D000077:Acetabulum / Q000473:pathology; D001672:Biocompatible Materials; D002858:Chromium Alloys; D005269:Femur / Q000473:pathology; D005500:Follow-Up Studies; D006622:Hip Prosthesis; D006801:Humans; D008982:Molybdenum; D011183:Postoperative Complications / Q000473:pathology*; D011474:Prosthesis Design; D011475:Prosthesis Failure; D013499:Surface Properties
D001672:Biocompatible Materials; D002858:Chromium Alloys; D008982:Molybdenum
Verschleissverhalten von Pfannen und Kugeln aus CoCrMo-Gusslegierung bei langzeitig implantierten Ganzmetall-Hüftprothesen.