Partial Capitate Shortening Osteotomy and Its Impact on Lunate Revascularization: Mid-Term Results

Abstract

French

Background:

Treatment of Kienböck disease is still a clinical challenge. The treatment used in each instance is decided according to stage of the disease at presentation. Good clinical and radiological results could be obtained with partial capitate shortening osteotomy. However, mid-term results of this technique and its effect on lunate revascularization are not well known.

Objectives:

The aim of this study was to report our results of partial capitate shortening osteotomy in the treatment of stage II and IIIA Kienböck disease.

Methods:

Ten patients were enrolled in the study with a mean age of 37.7 years old (standard deviation [SD] = 9.6). Patients were evaluated clinically in terms of range of motion, DASH and VAS scores, satisfaction with the outcome, and grip/tip/palmar/key pinch strength compared to the contralateral side. Radiological evaluation consisted of Lichtman staging on plain radiographs and lunate revascularization on magnetic resonance imaging (MRI) at both preoperative and postoperative evaluations.

Results:

The mean duration of follow-up was 55.2 (SD = 24) months. The mean DASH and VAS scores were 14.3 (SD = 6.7) and 1.5 (SD = 1.3), respectively. For patient satisfaction, the mean score was 3.6 (SD = 0.6). The Lichtman stage of 7 patients remained unchanged. Lunate revascularization was detected with MRI in 6 patients.

Conclusions:

Although the number of patients in the study prevents more strict conclusions, our results are promising, and the technique presented offers minimally but observable lunate revascularization and high success rates in preventing the progression of the disease.

Keywords

capitate Kienböck lunate lunatum partial shortening

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