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Abstract
To determine the reduction effect of Harrington and C-D instrumentation after unstable thoracolumbar fractures, we surveyed the clinical records of thirty patients who were examied with conventional radiographs and CT scans before and after surgery from 1987 to 1991. Twenty of thirty patients were operated with Harrington instrumentation and others were operated with C-D instrumentation. The results of thirty patients who are operated with Harrington or C-D instrumentation were as follows;
1. The majority of the thoracolumbar junction unstable fractures was operated with Harrington instrumentation and majority of lower lumbar unstable fractures was operated with C-D instrumentation. 2. The flexion deformity was reduced significantly by surgery when using Harrington instrumentation comparing with C-D instrumentated group. But, this may be due to reduction effect according to different type of bursting fractures. 3. The deformation of body of fractured vertebra was corrected significantly by surgery when using Harrington instrumentation compairing with C-D instrumentated group. 4. The reduction effect of the spinal canal deformity of fractured vertebra was no significancy between Harrington instrumented group and C-D instrumented group. 5. The reduction of Midsagittal diameter and Cross-Sectional area of spinal canal improved significantly by early surgical intervention.
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