Primary total hip arthroplasty with a porous-coated acetabular component. A concise follow-up of a previous report.
We previously reported the seven-to-ten-year results of the use of a porous-coated acetabular metal shell in a consecutive series of 204 primary total hip arthroplasties. In the present study, we evaluated the longer-term outcomes of these arthroplasties, at fifteen to eighteen years. One hundred and thirty-six (96%) of the 142 hips available for study retained the original acetabular metal shell. Three of the 142 metal shells failed secondary to aseptic loosening. Ten hips (7%) required a change of the modular acetabular liner because of excessive wear or for the treatment of osteolysis. The fifteen-year rate of survival of the metal shell, with failure defined as revision because of loosening or radiographic evidence of loosening, was 99%. The rate of survival of cementless acetabular reconstructions was excellent at fifteen years, although osteolysis and reoperations were noted to occur much more frequently as the duration of follow-up increased. The majority of the complications were related to wear of the polyethylene liner.
Della Valle
Craig J
CJ
Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois 60612, USA. craigdv@yahoo.com
Berger
Richard A
RA
Shott
Susan
S
Rosenberg
Aaron G
AG
Jacobs
Joshua J
JJ
Quigley
Laura
L
Galante
Jorge O
JO
D000077:Acetabulum; D019644:Arthroplasty, Replacement, Hip / Q000379:methods; D020099:Coated Materials, Biocompatible; D005500:Follow-Up Studies; D006622:Hip Prosthesis; D006801:Humans; D016062:Porosity; D011474:Prosthesis Design; D011475:Prosthesis Failure; D012086:Reoperation; D013997:Time Factors
D020099:Coated Materials, Biocompatible