抄録
Since 1979, a modified Schlein system (semi-constrained type) was used for elbow replacement in RA patients in our department. Since 1993, we have used a Pritchard Mark II system (semi-constrained type) with cement fixation. The clinical and radiological results of total elbow replacement in which such a prosthesis was implanted in RA patients were reviewed retrospectively.
There were 1 man and 5 women with a mean age of 61.3 years (range 45-73 years). Mean elbow function score according to the Japanese Orthopaedic Association rating improved from 46.7 to 77.8. Mean flexion improved from 105°to 126.7°, while mean extension improved from -51.7°to -23.3°.
Radiolucent line were observed around the humeral component in one case, but dislocation, sinking and loosening were not observed in radiographs.
We conclude that the Pritchard Mark II system is useful for total elbow replacement in patients with RA.
