Radiolunate and radioscapholunate arthrodeses as treatments for rheumatoid and psoriatic arthritis: long-term follow-up.

PURPOSE

We evaluated long-term results for radiolunate and radioscapholunate arthrodeses for patients with rheumatoid or psoriatic arthritis to determine the durability and efficacy of the procedures. The results are described and compared with those in the literature.

METHODS

We carried out arthrodesis of the radiolunate joint (33 wrists) and the radioscapholunate joint (13 wrists) to achieve pain reduction and ulnar translation of the carpus in patients with rheumatoid (42 wrists) or psoriatic arthritis (4 wrists). At follow-up, 11 patients (13 wrists) had died, 2 patients (4 wrists) were lost to follow-up, and in 6 wrists an additional midcarpal arthrodesis had been performed. We evaluated the remaining 23 wrists (19 radiolunate and 4 radioscapholunate, and 1 psoriatic arthritic wrist) after a mean of 11 years.

RESULTS

Clinical outcome was good, with a mean visual analog score of 2 out of 10 for pain, mean grip strength of 13 kg, and mean range of flexion-extension of 60°. Outcomes as measured by questionnaires were good. Radiographs demonstrated deterioration of all intracarpal joints as noted by an increased Larsen score and evidence of carpal translation. We noted no significant change in carpal height.

CONCLUSIONS

Despite radiographic progression, radiolunate and radioscapholunate arthrodeses yield good clinical results at long-term follow-up.

TYPE OF STUDY/LEVEL OF EVIDENCE: Therapeutic IV.