[Low loosening rate of a cemented titanium straight shaft prosthesis in long-term follow-up].
Aseptic loosening is still a major problem in total hip replacement. We studied the mid-term results of a straight stem femoral prosthesis made from titanium alloy (BiContact) and implanted with the use of bone cement. 250 hips in 238 patients have been implanted between 8/87 and 12/88 and followed up. 172 patients were alive and could be reached after 7 years. Two patients had to undergo revision surgery within the follow up period, and in two other patients radiolucencies could be found. A loosening rate of 1.2% and a rate of radiolucencies of another 1.2% indicate that the combination of a titanium alloy stem prosthesis with bone cement not necessarily leads to early loosening or a high loosening rate, which has been supposed by several authors. The design of the individual prosthesis seems to be of greater importance than the materials used.
Eingartner
C
C
Berufsgenossenschaftliche Unfallklinik, Tübingen.
Volkmann
R
R
Kümmel
K
K
Weller
S
S
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000497:Alloys; D002484:Cementation; D005260:Female; D005269:Femur / Q000000981:diagnostic imaging / Q000601:surgery; D006622:Hip Prosthesis / Q000295:instrumentation*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design; D011475:Prosthesis Failure; D011859:Radiography; D012189:Retrospective Studies; D014025:Titanium
D000497:Alloys; C031462:titanium alloy (TiAl6V4); D014025:Titanium