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A PROSPECTIVE RANDOMISED TRIAL TO COMPARE THE LESS INVASIVE SKELETAL STABILIZATION SYSTEM (LISS) WITH A MINIMALLY INVASIVE DYNAMIC CONDYLAR SCREW (DCS) FOR DISTAL FEMORAL FRACTURE



Abstract

This multi-center randomized prospective trial examined fixation for distal femoral fractures by standardizing the surgical approach as minimally invasive. Fifty three patients at six Canadian trauma centers were randomized via the Lead Centre (Halifax Infirmary, Dal-housie University, Halifax, CANADA) into 2 groups of 28 LISS and 25 DCS respectively. The AO C3 group was excluded from randomization. In the LISS group, three fractures went on to non-union and two fractures were complicated by early loss of fixation. A further LISS patient had removal of all metalwork when removal of individual prominent screws proved impossible due to cold-welding. In the DCS group, one fracture was complicated by non-union.

The difference between the two groups proved very statistically significant. (P< 0.05)

In this trial, the LISS proved more technically demanding and a higher re-operation rate was evident. At the Lead Centre, the LISS has been abandoned in favor of the DCS or LCP Condylar Plate performed via a minimally invasive approach.

Correspondence should be addressed to: EFORT Central Office, Technoparkstrasse 1, CH – 8005 Zürich, Switzerland. Tel: +41 44 448 44 00; Email: office@efort.org

Author: Richard Preiss, United Kingdom

E-mail: aapreiss@doctors.org.uk