Minimum 5-year follow-up of a cementless, modular, tapered stem in hip revision arthroplasty.
Hip revision surgery with a cementless tapered femoral component can provide axial and rotational stability in patients with compromised proximal bone stock. This study includes 90 cases revised with the Link MP (Waldemar Link, Hamburg, Germany) prosthesis. The median age at surgery was 72 (38-89) years. Aseptic loosening (70%) and periprosthetic fracture (22%) were common indications for surgery. Sixty-three patients (70%) were followed clinically with a median of 6 (5-11) years of follow-up. All other patients were followed through the Swedish Hip Register. The 5-year survival rate was 98% with stem removal and 90% with any reoperation as the end point. Complications included hip dislocation in 17 (19%) patients. The median Harris hip score was 78 (16-100) points, and the median radiographic stem migration was 2.7 mm at follow-up.
Department of Molecular Medicine and Surgery, Section of Orthopaedics and Sports Medicine, Karolinska University Hospital/Karolinska Institutet, Stockholm, Sweden.
Rüdiger J
RJ
Weiss
Mats O
MO
Beckman
Anders
A
Enocson
Anders
A
Schmalholz
André
A
Stark
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation*; D005260:Female; D005269:Femur / Q000000981:diagnostic imaging* / Q000601:surgery; D005500:Follow-Up Studies; D005548:Foreign-Body Migration / Q000601:surgery; D006622:Hip Prosthesis / Q000592:standards*; D006801:Humans; D053208:Kaplan-Meier Estimate; D008297:Male; D008875:Middle Aged; D057068:Periprosthetic Fractures / Q000601:surgery*; D011474:Prosthesis Design / Q000592:standards*; D011475:Prosthesis Failure; D011859:Radiography; D012042:Registries; D012086:Reoperation; D013548:Sweden