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Journal of Bone and Joint Surgery - British Volume, Vol 88-B, Issue 3, 341-344.
doi: 10.1302/0301-620X.88B3.17017  
Copyright © 2006 by British Editorial Society of Bone and Joint Surgery
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Comparison of two types of ulnar component in type-5 Kudo total elbow arthroplasty in patients with rheumatoid arthritis

A LONG-TERM FOLLOW-UP

N. Tanaka, MD, PhD, Orthopaedic Surgeon, Vice-President1; H. Sakahashi, MD, PhD, Orthopaedic Surgeon1; S. Ishii, MD, PhD, Orthopaedic Surgeon, Professor Emeritus2; and H. Kudo, MD, PhD, Orthopaedic Surgeon, Honorary President3

1 Sapporo Gorinbashi, Orthopedic Hospital in Gorinbashi Health Care, Facilities and Hospitals, 2-1, Kawazoe, Minami-ku, Sapporo, Hokkaido 005-0802, Japan.
2 Department of Orthopedic Surgery, School of Medicine, Sapporo Medical University, 291, South 1 West 16, Cyuou-ku, Sapporo, Hokkaido 060-0061, Japan.
3 Department of Orthopedic Surgery, Sagamihara National Hospital, Sakuradai 18-1, Sagamihara, Kanagawa Prefecture, 228-8522, Japan.

Correspondence should be sent to Dr N. Tanaka; e-mail: nobuyuki.tanaka{at}ryumachi-jp.com

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.




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Hip, Knee, Trauma, Upper limb, Foot & Ankle, Paediatrics, Oncology, Spine, Arthroplasty, General