Head and neck replacement prostheses in revision hip arthroplasty: experience with a single modern design.
This study reviewed 52 revision hip arthroplasties in which calcar cortical deficiencies were addressed by implantation of a cemented, modern-design head and neck replacement femoral prosthesis. Mean clinical follow-up was 38 months. Radiographic follow-up beyond 22 months was available for 34 patients (mean: 35.8 months). Mean Mayo clinical hip score (maximum: 80) improved from 28.2 preoperatively to 55.2 at last follow-up. No femoral component was revised for aseptic loosening. However, radiographic analysis demonstrated one prosthesis was probably loose and two were possibly loose. A 92.7% Kaplan-Meier 5-year implant survival rate free from radiographic loosening was projected. This type of prosthesis has yielded good clinical results and excellent early survival.
Clarke
H D
HD
Department of Orthopedics, Mayo Clinic and Mayo Foundation, Rochester, Minn 55905, USA.
Damron
T A
TA
Trousdale
R T
RT
Sim
F H
FH
Larson
D R
DR
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation*; D001843:Bone Cements; D005260:Female; D005500:Follow-Up Studies; D006615:Hip / Q000000981:diagnostic imaging / Q000502:physiology; D006801:Humans; D015993:Life Tables; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D011474:Prosthesis Design; D011475:Prosthesis Failure; D011859:Radiography; D012086:Reoperation; D016896:Treatment Outcome
D001843:Bone Cements