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  • Title: Combined radial wedge and shortening osteotomy versus scaphocapitate arthrodesis in advanced Kienböck's disease.
    Author: Woo SH, Kim SM, Ahn YS, Hyun JH, Kim HY, Kim MS.
    Journal: Acta Orthop Belg; 2022 Dec; 88(4):739-747. PubMed ID: 36800658.
    Abstract:
    Although various surgical techniques have been reported for the treatment of advanced Kienböck's disease (Lichtman stage IIIB and above), the ap- propriate operative treatment is still being debated. This study compared the clinical and radiological outcomes of combined radial wedge and shortening osteotomy (CRWSO) and scaphocapitate arthrodesis (SCA) in the treatment of advanced Kienböck's disease (above type IIIB) with a minimum of 3 years of follow-up. We analyzed the data from 16 and 13 patients who underwent CRWSO and SCA, respectively. The average follow-up period was 48.6±12.8 months. Clinical outcomes were evaluated using the flexion-extension arc, grip strength, Disabilities of the Arm, Shoulder, and Hand Questionnaire (DASH), and Visual Analogue Scale (VAS) for pain. The following radiological parameters were measured: ulnar variance (UV), carpal height ratio (CHR), radioscaphoid angle (RSA), and Stahl index (SI). Osteoarthritic changes in the radiocarpal and midcarpal joints were evaluated using computed tomography (CT). Clinically, both groups showed significant improvements in the grip strength, DASH, and VAS at final follow-up. However, regarding the flexion-extension arc, the CRWSO group showed a significant improvement, while the SCA group did not. Radiologically, compared to the preoperative values, the CHR results improved at final follow-up in the CRWSO and SCA groups. There was no statistically significant difference in the degree of CHR correction between the 2 groups. By the final follow-up visit, none of the patients in either group had progressed from Lichtman stage IIIB to stage IV. Considering restoration of wrist joint range of motion, CRWSO may be a good alternative for limited carpal arthrodesis for advanced Kienböck's disease.
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