Second-generation cementless total hip arthroplasty in patients with osteonecrosis of the femoral head.
The results of cementless total hip arthroplasties in patients with osteonecrosis have been inferior to those in patients with other diagnoses. Fifty-eight primary total hip arthroplasties with insertion of a femoral stem with a circumferentially proximal porous coating and a cementless acetabular component were followed for a mean of 11.1 years. Fifty-seven (98%) of 58 stems were biologically stable, and one stem was loose. There were acetabular revisions in 18 hips (31%) because of polyethylene wear and osteolysis. One hip (1.7%) underwent revision of both acetabular and femoral components. Osteolysis around the acetabular component was seen on radiographs in 22 hips (37.9%). Femoral osteolysis was seen in 9 hips (15.5%), and there was no osteolysis below the lesser trochanter in any hip. Second-generation femoral prostheses provide excellent fixation in patients with osteonecrosis of the femoral head. However, a high rate of polyethylene wear and osteolysis in these high-risk patients remains a challenging problem.
Min
Byung-Woo
BW
Department of Orthopaedic Surgery, Dongsan Medical Center, Keimyung University, Joong-gu, Daegu, South Korea.
Song
Kwang-Soon
KS
Bae
Ki-Cheor
KC
Cho
Chul-Hyun
CH
Lee
Kyung-Jae
KJ
Kim
Hee-Joong
HJ
D000077:Acetabulum / Q000000981:diagnostic imaging / Q000601:surgery; D000328:Adult; D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000379:methods*; D001843:Bone Cements; D005260:Female; D005270:Femur Head / Q000000981:diagnostic imaging / Q000601:surgery; D005271:Femur Head Necrosis / Q000601:surgery*; D005500:Follow-Up Studies; D006801:Humans; D007431:Intraoperative Complications; D053208:Kaplan-Meier Estimate; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D010014:Osteolysis / Q000453:epidemiology / Q000517:prevention & control*; D020959:Polyethylene / Q000009:adverse effects; D011859:Radiography; D012086:Reoperation; D012307:Risk Factors
D001843:Bone Cements; D020959:Polyethylene