Aseptic loosening of 2 rim-fix, hydroxyapatite-coated acetabular cups.
Two cases of aseptic loosening in the 11th and 12th year of follow-up of the same acetabular component of a fully hydroxyapatite (HA)-coated total hip arthroplasty are presented. The acetabular cup was a rim-fix type, HA-coated, titanium hemispherical shell secured to the bony acetabulum with titanium screws at the peripheral polyethylene rim. The short-term and midterm results were good with HA-coated total hip arthroplasties, but further studies are needed to investigate whether the >10-year survival of these cups is as good as the survival of cemented ones.
Benko
T Z S
TZ
Department of Orthopaedics and Trauma, Barnsley District General Hospital, Barnsley, United Kingdom.
Santiago-Martin
A
A
Ruddlesdin
C
C
Selzer
G
G
D000077:Acetabulum; D019644:Arthroplasty, Replacement, Hip; D017886:Durapatite; D005260:Female; D005500:Follow-Up Studies; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D008875:Middle Aged; D011474:Prosthesis Design; D011475:Prosthesis Failure; D013997:Time Factors
D017886:Durapatite