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DISTAL FEMORAL FRACTURES: LONG TERM OUTCOME FOLLOWING STABILISATION WITH THE LISS

St James University Hospital, Beckett Street, Leeds LS9 7TF

We prospectively studied 29 patients with distal femoral fractures stabilised using the less invasive stabilisation system [LISS]. Four patients were excluded from the final follow up [3 deaths and 1 case of quadriplegia]. The mean age of the remaining 25 patients [9 males] was 60.9 years and the mean follow up 18 months [12–24]. Eleven patients were tertiary referrals from other hospitals [7 cases were referred due to failure of primary fixation]. Overall, there were 12 cases of high-energy trauma [7 open fractures]. According to the AO classification there were 5 Type 33A, 2 Type 33B and 12 Type 33C fractures and 4 Type 32A, 1 Type 32B, 1 Type 32C fractures. Functional assessment was performed using the Modified HSS and the Schatzker and Lambert scores. The average time to union in 22 cases was 3.5 months [range, 2–5]. None of the acute cases required bone grafting with a 100% union rate. There were 3/7 cases of non-union in the salvage group still undergoing treatment. The overall results in the acute cases were good and in the salvage cases fair. While this is a small series of patients, our preliminary data indicate favourable results using the LISS in stabilizing acute distal femoral fractures. However, when the LISS is used as a revision tool despite the concept of preserving the bone biology, the results seem to be less satisfactory. The system appears to be user friendly and no technical difficulties were encountered.

The abstracts were prepared by Mr Tim Briggs. (Editoral Secretary 2003/4) Correspondence should be addressed to him at Lane Farm, Chapel Lane, Totternhoe, Dunstable, Bedfordshire LU6 2BZ, United Kingdom