• Bernd Hohendorff, Marion Mühldorfer-Fodor, Karlheinz Kalb, Jörg van Schoonhoven, and Karl-Josef Prommersberger.
• Klinik für Handchirurgie Bad Neustadt Saale, Rhön Klinikum AG, Salzburger Leite 1, 97616, Bad Neustadt a. d. Saale, Germany, bernd.hohendorff@hotmail.com.
• Arch Orthop Trauma Surg. 2012 Sep 1;132(9):1327-34.

IntroductionScapho-trapezial-trapezoidal (STT) arthrodesis and proximal row carpectomy (PRC) are used for the treatment of Lichtman stage IIIB Kienböck's disease. This study prospectively compares 1-year results of STT arthrodesis and PRC in Lichtman stage IIIB Kienböck's disease.Materials And MethodsNineteen patients were operated: eight with STT arthrodesis and 11 with PRC. Preoperatively and 1-year postoperatively, mobility and grip strength were examined. Both DASH and Mayo Wrist Scores were obtained from the patients.ResultsIn the STT arthrodesis group, mean extension/flexion worsened from 54 to 39 % of the opposite hand. Grip strength improved from 52.9 to 62.1 %. The DASH Score improved from 32.6 to 21.4, and the Mayo Wrist Score from 50.6 to 57.9. In the PRC group, extension/flexion decreased from 62.5 to 57.0 % of the opposite hand. Grip strength improved from 38.6 to 69.0 %, the DASH Score from 36.7 to 18.9, and the Mayo Wrist Score from 54.6 to 66.0.ConclusionOne year after operation, slightly better results were observed in patients with PRC compared to STT arthrodesis.

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