Long-term results of cementless hip arthroplasty with ceramic-on-ceramic articulation.
OBJECTIVE
The goal of the study was to evaluate long-term results of hip arthroplasty in patients with ceramic-on-ceramic articulation.


METHODS
The follow-up involved 220 primary total hip arthroplasty procedures (188 patients, 101 women and 87 men) after implantation of the Mittelmeier cementless hip endoprosthesis. The mean age of patients at surgery was 44.5 years and the mean follow-up was 19.6 years, with a minimum of 12.3 years. Dysplastic, idiopathic and post-traumatic coxarthrosis were the most frequent forms of degenerative hip changes. The Merle d'Aubigné and Postel classification, as modified by Charnley, was used for clinical evaluation.


RESULTS
Very good results were obtained in 39.5 % of the patients, good results in 43.6 %, satisfactory results in 9.1 % and poor results in 7.8 %. Twelve-year survival for the whole prosthesis was 86.36 %, for the acetabulum 89.99 % and for the stem 91.36 %.


CONCLUSIONS
Long-term results of hip arthroplasty using the Mittelmeier prosthesis are fairly encouraging with their low incidence of loosened prosthesis components after surgery.
Clinic of Orthopedic and Pediatric Orthopedics, Medical University of Lodz, Drewnowska 75, 91-002 Lodz, Poland. msynder@pro.onet.pl
Marek
M
Synder
Marek
M
Drobniewski
Marcin
M
Sibiński
D019644:Arthroplasty, Replacement, Hip / Q000009:adverse effects / Q000295:instrumentation* / Q000379:methods*; D002484:Cementation; D002516:Ceramics; D019544:Equipment Failure Analysis; D005260:Female; D006304:Health Status; D006617:Hip Dislocation / Q000209:etiology; D025981:Hip Injuries; D006621:Hip Joint / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery; D006622:Hip Prosthesis; D006801:Humans; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000209:etiology; D010147:Pain Measurement; D011474:Prosthesis Design; D011475:Prosthesis Failure / Q000209:etiology; D011859:Radiography; D013997:Time Factors; D016896:Treatment Outcome