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MAINTENANCE OF SURGICAL STABILITY USING VARIABLE ANGLE SCREW PLATE FIXATION



Abstract

Reviewing 40 consecutive cases over a two-year period, we tested the efficacy of variable screw plate fixation postoperatively.

A Codman plate was used in all cases. We compared radiological preoperative measurements of the kyphotic angle and disc height with immediate postoperative measurements and measurements at a mean of eight months postoperatively. In no case was there an increase in kyphotic angle. Disc height remained within two mm of that shown on immediate postoperative radiographs.

We concluded that satisfactory results are obtained with variable screw plate fixation, with no compromised stability.

The abstracts were prepared by Professor M. B. E. Sweet. Correspondence should be addressed to him at The Department of Orthopaedic Surgery, Medical School, University of Witwatersrand, 7 York Road, Parktown, Johannesburg, 2193 South Africa