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J Hand Surg Eur Vol. 2009 Jun;34(3):391-6. doi: 10.1177/1753193408100955.

Computed tomographic assessment of reduction of the distal radioulnar joint by gradual lengthening of the radius.

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  • 1Department of Orthopaedics, Hand and Upper Extremity Service, Seoul National University, Bundang Hospital, Seongnam, Korea. hsgong@snu.ac.kr

Abstract

Congruency of the distal radioulnar joint was assessed by computed tomography after gradual lengthening of the radius in patients with considerable ulnar positive variance of mean 12 (range 10-17) mm and chronic dislocation of the distal radioulnar joint. Six patients of mean age 25 years were treated by radial osteotomy and subsequent gradual lengthening using either a single-rod or a half-ring external fixator, which was applied for a mean of 81 days. The causes of deformity were distal radial epiphyseal injury in four, malunion of a radius shaft fracture in one and Madelung deformity in one. Computed tomography scans taken at 1 year postoperatively demonstrated that all patients had a congruent distal radioulnar joint. All patients achieved symptom and radiographic parameter improvements at a mean follow-up of 40 months. A disadvantage was unattractive scars on a cosmetically important surface of the forearm. Given a relatively intact bony contour of the distal radioulnar joint, congruent reduction of the distal radioulnar joint can be obtained by gradual lengthening of the radius.

PMID:
19457906
DOI:
10.1177/1753193408100955
[PubMed - indexed for MEDLINE]
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