From 1985 to 1998 we used the Souter implant for elbow replacement in the rheumatoid population. We have followed this cohort prospectively, and present simple outcome measures including initial pain relief, early complication rates, radiological changes with time, and survivorship. We performed 71 Souter elbow replacements in 62 rheumatoid patients (51 female, 11 male). The average age at surgery was 61 (range 38–79). All patients had end stage arthropathy. Early results and complications were assessed in all patients. Subsequently, ten cases were revised for loosening, and eight patients (10 elbows) died before recent follow up, leaving 51 cases for long term study. Clinical and radiological data were obtained. On early follow up, 94% had no or minimal pain. Thirty-one percent suffered a complication. Overall, 18% cases had ulnar nerve problems and 7% dislocated in the first year. Seven percent had wound problems, including two deep infections. At mean long term follow up of 6 years (range: 2–15 years) there were high rates of satisfaction in patients with retained prostheses. Progressive radiolucency around the humeral component was common and treated expectantly. Late instability was not seen. Pain relief was maintained. There have been few long-term reports on the Souter elbow replacement. This group of patients from a single centre has been followed prospectively. Infection and ulnar nerve complications are comparable with other series, and are less related to prosthesis. The rate of humeral component loosening in this series is high. The rate of dislocation, however, is low. This prosthesis sacrifices stability to transmit forces through the soft tissues. Although stability is acceptable there is no beneficial reduction in loosening.
The purpose of this study was to evaluate the outcomes of treatment of rheumatoid elbows with Kudo Total Elbow Replacements. Between 1993–1997 we performed 39 Kudo Total Elbow Replacements in 35 patients with Rheumatoid Arthritis, aged 39–81 years old (mean age: 60,7 yrs). Eleven patients (13 elbows) were male and 24 (26 elbows) were female. Twenty-eight (28) replacements were performed on the right side and eleven (11) on the left. All the patients were evaluated clinically (pre-op and post-op, using Mayo score system) and radiographically. In seven elbows another procedure (radial head excision (three), radial head excision &
synovectomy (three), arthroscopy &
interposition arthroplasty(one)) had been performed previously for the rheumatoid arthritis. Eight elbows seemed to have ulnar nerve problems pre-op. We followed-up 31 patients (35 elbows). Mean follow-up was 5years (range: 4–8 years). The pre-operative pain had been reduced significantly in almost all patients. In the majority, the movement had also been improved post-operatively. Two elbows were unstable (one subluxated, one dislocated). Both presented early postoperatively. Only one patient developed a postoperative ulnar nerve problem and that resolved. One elbow had a delay in wound healing. Radiolucency appeared around both the humeral and ulnar components in five elbows, around humeral component in two and around ulnar component also in two. Five elbow replacements were revised. Four of them due to aseptic loosening and one due to instability problem (dislocation). No deep infection was noticed in any elbow. In our hands, Kudo Elbow Replacements seemed to have aseptic loosening rates comparable to other series and low dislocation rates.