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RESULTS OF 46 ISOLATED LISFRANC INJURIES AND THE EFFECT OF COMPENSATION CLAIMS



Abstract

The aim of this study was to investigate the long-term outcome of isolated, displaced Lisfranc injuries requiring operative intervention and identify whether results of treatment are influenced by workers compensation.

This retrospective study reviewed all patients who underwent operative intervention for Lisfranc injuries. Patients with concomitant injuries were excluded from further investigation so that the outcome of purely isolated Lisfranc injuries could be assessed. The minimum follow-up was two years and the senior author performed all the operations. Patients were contacted and their employment status recorded. Ordinal regression analysis was performed to identify which factors influenced the outcome.

Forty-six patients were studied and 24 had pursued medico-legal claims. The average Workcover payment was Aus$25,000 (£10,000). Thirteen of forty-six patients had a poor outcome. Eleven of these patients had compensation claims (p< 0.01) and 11 had greater than a three month delay in treatment following diagnosis (p< 0.05). Although 12/33 men and 1/13 women had a poor outcome this difference was not statistically significant. The need for secondary fusion was not associated with a poor outcome. There was no significant difference between outcome and mechanism of injury or previous occupation. There was no correlation between the outcome and age at the time of injury.

This series of 46 patients has a long follow-up of a rare injury. We believe that this study has medico-legal implications on reporting prognosis for such injuries and highlights the importance of prompt diagnosis and treatment for such injuries.

The abstracts were prepared by Mr J. L. Barrie. Correspondence should be addressed to Mr J. L. Barrie, BOFSS Editor, Department of Orthopaedic Surgery, Blackburn Royal Infirmary, Blackburn, Lancashire BB2 3LR.