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KMID : 1207720170090030355
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Clinics in Orthopedic Surgery
2017 Volume.9 No. 3 p.355 ~ p.362
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Clinical Outcome of Lateral Wedge Osteotomy of the Radius in Advanced Stages of Kienbock's Disease
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Shin Young-Ho
Kim Ji-Hyeung
Gong Hyun-Sik
Rhee Seung-Hwan
Cho Min-Joon
Baek Goo-Hyun
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Abstract
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Background: Radius osteotomies showed favorable clinical outcome in Kienbock's disease. However, few articles have been published on the long-term outcome of lateral wedge osteotomy of the radius in patients with advanced stage Kienbock's disease.
Methods: Eleven patients with Lichtman stage IIIB/IV Kienbock's disease (group A; mean follow-up period, 86.1 months; range, 48 to 163 months) and 14 patients with Lichtman stage IIIA Kienbock's disease (group B; mean follow-up period, 85.1 months; range, 49 to 144 months) underwent radial wedge osteotomy between August 2004 and August 2012. Radiological changes of the lunate and radiocarpal joint were compared between two groups after osteotomy. The wrist flexion/extension angle, grip strength, and Disabilities of the Arm, Shoulder and Hand (DASH) scores were evaluated preoperatively and at the final follow-up. The Nakamura Scoring System (NSSK) was used for comprehensive understanding of radiological and clinical outcomes.
Results: Nine patients of group A and 11 patients of group B showed radiological improvement in the lunate regarding sclerosis, cystic changes, or fragmentation. No patients showed progression of arthritic changes in radiocarpal and midcarpal joints. The wrist flexion/extension angle, grip strength, and DASH score were significantly improved in both groups after operation, but intergroup difference was not statistically significant at the final follow-up (p = 0.149, p = 0.267, and p = 0.536, respectively). The mean NSSK was 21.6 (range, 15 to 27) in group A and 21.8 (range, 15 to 26) in group B.
Conclusions: Radial wedge osteotomy yielded excellent radiological and functional outcomes in advanced stages of Kienbock's disease and these results were comparable to those of Lichtman stage IIIA disease. This technique could be a useful alternative to salvage procedures in the treatment of Lichtman stage IIIB/IV Kienbock's disease without severe radiocarpal arthritis.
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KEYWORD
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Osteonecrosis, Kienbock's disease, Radius osteotomy, Radial wedge osteotomy
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