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  • Title: Radioscapholunate arthrodesis versus radiolunate arthrodesis in rheumatoid wrist surgery: Clinical and radiographic outcomes.
    Author: Arboucalot M, Rongières M, Bonnevialle N, Delclaux S, Mansat M, Mansat P.
    Journal: Hand Surg Rehabil; 2020 Oct; 39(5):363-374. PubMed ID: 32334078.
    Abstract:
    Radiolunate arthrodesis is a validated surgical technique in rheumatoid wrist surgery. When the radioscaphoid joint is involved or when there is radiolunate instability, a radioscapholunate arthrodesis must be preferred. The objective was to compare clinical and radiographic outcomes for both types of arthrodesis. Patients were evaluated retrospectively at a minimal follow-up of 12 months after radiolunate arthrodesis (RL-A group) or radioscapholunate arthrodesis (RSL-A group). Mean follow-up was 10.7 years (1-25 years). One hundred and one patients were included in RL-A group and 26 in RSL-A group. At follow-up, pain level was significantly reduced by 3.7 points and by 2.9 points in RL-A and RSL-A groups, respectively. Mobility in flexion/extension was significantly reduced by 25° in both groups. DASH and PRWE scores were 42.9 and 41.4 in RL-A group, 41.8 and 20.6 in RSL-A group, respectively. Larsen stage for the midcarpal joint increased significantly in both groups (+0.8 in RL-A group; +0.9 in RSL-A group), carpal height index decreased (-0.03 in RL-A group (significant); -0.02 in RSL-A group (non-significant)), carpal ulnar translation index increased (+0.038 in RL-A group; +0.037 in RSL-A group), without significant difference between both groups. Nonunion rate was significantly higher in RSL-A group (62%) than in RL-A group (30%). A pain free and functional wrist can be obtained after radiolunate and radioscapholunate arthrodesis. However, arthritis lesions and carpal deformities increased with follow-up similarly with both surgical techniques. Our results have shown that radiolunate arthrodesis remains a reliable surgical procedure for advanced rheumatoid wrist.
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