Femoral nerve block in the initial management of femoral shaft fractures.

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Abstract
The aim of this study was to demonstrate that the under-used technique of femoral nerve block (F.N.B.) (Berry, 1977) has excellent analgesic action for femoral shaft fractures when performed by junior staff. It had no recorded side effects and was used in all age groups for fractures at all levels along the femoral shaft. Twenty-seven consecutive patients were studied as they presented in an accident room, all received a femoral nerve block (10 ml 1% Lignocaine with 1:200,000 adrenaline) from unsupervised junior accident and emergency staff instructed in the technique. Each case was subsequently followed up, and both the delay before the onset of analgesia and total duration of analgesia, together with its efficacy, were assessed. A further F.N.B. using a different agent (10 ml 0.5% bupivacaine) was performed and the same parameters were assessed. Both agents gave effective analgesia of varying duration at all levels of fracture site.

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