Ceramic-on-ceramic hip outcome at a 5- to 10-year interval: has it lived up to its expectations?
This study reports revision and complication rates of a single cementless double-wedged tapered stem with an alumina-alumina bearing over 10 years since the beginning of premarket clinical trials. Of 930 hips (848 patients) implanted by 9 surgeons, there were 19 revisions at mean follow-up of 5.9 years compared to 10 revisions in the 123 hips implanted with the polyethylene control group at mean 7.8 years. The ongoing safety of alumina-alumina bearings is demonstrated through excellent (96.8%) survivorship at 10 years. Twenty-one patients reported 23 incidences of noise described as clicking, squeaking, popping, or creaking. Eight patients with 9 hips described the noise as squeaking, most occurring rarely and only 1 occurring frequently in a patient subsequently revised for a reason aside from the squeaking.
Mesko
J Wesley
JW
Sewickley Valley Hospital, Sewickley, Pennsylvania, USA.
D'Antonio
James A
JA
Capello
William N
WN
Bierbaum
Benjamin E
BE
Naughton
Marybeth
M
D000537:Aluminum Oxide; D002516:Ceramics; D005260:Female; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000453:epidemiology; D011446:Prospective Studies; D011474:Prosthesis Design; D012086:Reoperation / Q000706:statistics & numerical data; D013997:Time Factors
D000537:Aluminum Oxide