2013, Number 1
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Rev Mex Anest 2013; 36 (1)
Anesthetic efficacy of peripheral nerve blocks at ankle level in foot surgery
Ramírez-Gómez M, Schlufter-Stolberg RM, Chao-Rueda MI
Language: Spanish
References: 24
Page: 14-25
PDF size: 487.52 Kb.
ABSTRACT
Objective: To evaluate the quality and postoperative duration of analgesia for ankle blocks during foot surgery.
Material and methods: After institutional ethical committee approval and obtaining informed written consent from each patient; 150 patients, American Society of Anesthesiologists (ASA) physical status I to III, scheduled for foot and ankle surgery were included in a prospective, descriptive, longitudinal and analytical trial. The complete ankle block included: 1) posterior tibial nerve, 2) peroneal nerve-deep and superficial, saphenous nerve, 3) sural nerve. All under three combinations of local anesthetics (lidocaine, lidocaine-bupivacaine, lidocaine-ropivacaine) with a total volume of 15-25 mL. The duration of postoperative analgesia and anesthesia was evaluated.
Results: With an average age of 57.5 years, primarily male and classified as ASA III according to the American Society of Anesthesiologists (ASA) due to diabetes mellitus, the main surgery performed was foot debridement in a 40.9%. The transoperative anesthesia for surgery was 100% successful for all three block combinations. The duration of analgesia was an average of 12 hours, with an visual analogical scale (VAS) score of 4.3 (tolerable pain). There was no significant differences regarding gender at 12 hours (p = 0.11), or at 24 hours (p = 0.23) and regarding the use of the different local anesthetics, there were no significant differences at 12 hours (p = 0.82) or 24 hours (p = 0.66).
Conclusions: The ankle block for foot surgery constitutes a fine option for safe anesthesia. It provides a postoperative analgesia qualitatively significant for up to 12 hours.
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