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KMID : 0352120150300010043
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Journal of Kyung Hee University
2015 Volume.30 No. 1 p.43 ~ p.51
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Peripheral Nerve Blocks for Lower Extremity Surgery: A Prospective Observational Feasibility Study
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Yang Chun-Woo
Lee Choon-Soo
Song Kyung-Chul
Kim Jong-Eun
Na Won-Ju
Lim Hyun-Keun
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Abstract
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Background: Peripheral nerve blocks are clinically useful regional anesthetic technique. Although they are less commonly used, they provide a lot of benefits for lower extremity surgery. The aim of this prospective study was to assess the feasibility and side effects of peripheral nerve blocks for lower extremity surgery.
Methods: The sixty patients undergoing lower extremity surgery were prospectively included. A sciatic nerve block was performed according to the classic posterior approach. A femoral nerve block was performed with the injection of 1 cm lateral to the femoral artery at skin-crease level. Stimulating needles of 120 mm for the sciatic nerve and 50 mm for the femoral nerve were used with a nerve stimulator. Block procedure time, patient discomfort, success rate, block duration, adverse events, and patient satisfaction were assessed.
Results: The sixty patients were enrolled (40 men and 20 women) with the following characteristics: mean (standard deviation) of age was 52 (15) yr, height was 164 (8) cm, and weight was 65 (11) kg. The success rate was 85% (95% confidence interval 73.9 . 91.9%) and 15% of the patients required supplementation. Local anesthetic systemic toxicity was observed in three patients (0.05%), and no neurological deficits occurred. All patients were satisfied with this technique.
Conclusions: This study showed that peripheral nerve blocks provide effective anesthesia and analgesia with a small complication rate and a high degree of patient acceptance for lower extremity surgery.
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KEYWORD
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Lower extremity, Femoral nerve, Nerve block, Sciatic nerve
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