J Korean Orthop Assoc.  1997 Dec;32(7):1710-1717.

Treatment of the Distal Radius Fracture with Hinged External Fixator

Abstract

Pennig wrist fixator (Orthofix) is a dynamic external fixator which allows wrist motion in applied state in the treatment of distal radius fracture. The authors have treated unstable distal radius fracture with Orthofix external fixator and additional percutaneous K-wire fixation from January 1990 to June 1996. Among these cases, the authors analysed the clinical result of 40 cases which were available for follow-up for more than one year. The analysis was performed on the basis of the change of radiographic findings and modified Gartland & Werley criteria. The results were as follows; 1. According to Frykmann classification, 3 cases were Type I; 1 case, Type II; 4 cases, Type III; 2 cases, Type IV; 4 cases, Type V; 5 cases, Type VI; 20 cases, Type VII; 1 case, Type VIII. 2. We could get the improved values after operation as radial inclination 22.6degrees, radial length 10.7mm and volar tilt 8.8degrees. 3. There were little differences in value between at the immediate postoperative roentgenogram and at the last follow up one; radial inlclination decreased 1.2degrees, radial length shortened 2.5mm, volar tilt decreased 2.3degrees. 4. In 3 cases, the level of the ball joint of the fixator was not adjusted appropriately, so the initial satisfactory reduction was disrupted. 5. According to modified Gartland & Werley criteria, 34 cases (85%) were excellent and good. Pennig dynamic wrist fixator (Orthofix) allows the wrist motion earlier than the static external fixator without disturbing the initial reduction state, so it could be suggested as one of the good fixation devices for the treatment of the unstable distal radius fracture.

Keyword

Distal radius fracture; Orthofix external fixator
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