Comparison of two types of ulnar component in type-5 Kudo total elbow arthroplasty in patients with rheumatoid arthritis: a long-term follow-up.
The purpose of this study was to assess the long-term results (more than ten years) of two types of cemented ulnar component with type-5 Kudo total elbow arthroplasty in a consecutive series of 56 patients (60 elbows) with rheumatoid arthritis, and to compare the results in elbows above and below a Larsen grade IV. There was no radiolucency around the humeral component. Patients in whom a metal-backed ulnar component and a porous-coated stem were used had better clinical results and significantly less progression of radiolucent line formation around the ulnar component. They also had a significantly better long-term survival than patients with an all-polyethylene ulnar component. The clinical results of arthroplasty using all-polyethylene ulnar components were inferior, regardless of the degree of joint destruction. We conclude that the type-5 Kudo total elbow arthroplasty with cementless fixation of the porous-coated humeral component and cemented fixation of a metal-backed ulnar component is acceptable and well-tolerated by rheumatoid patients.
Sapporo Gorinbashi, Orthopedic Hospital in Gorinbashi Health Care, Facilities and Hospitals, and Department of Orthopedic Surgery, School of Medicine, Sapporo Medical University, Hokkaido 005-0802, Japan. nobuyuki.tanaka@ryumachi-jp.com
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N
Tanaka
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Sakahashi
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S
Ishii
H
H
Kudo
D000328:Adult; D000368:Aged; D001172:Arthritis, Rheumatoid / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D019643:Arthroplasty, Replacement / Q000295:instrumentation* / Q000379:methods; D004551:Elbow Joint / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000601:surgery*; D005260:Female; D006801:Humans; D006811:Humerus / Q000000981:diagnostic imaging; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement / Q000379:methods; D020959:Polyethylene; D011183:Postoperative Complications / Q000209:etiology; D011474:Prosthesis Design; D011859:Radiography; D016059:Range of Motion, Articular; D016896:Treatment Outcome; D014457:Ulna / Q000000981:diagnostic imaging / Q000601:surgery*
D020959:Polyethylene