Monolateral spinal anaesthesia as a component of general anaesthesia was compared to the spinal anaesthesia as a component of general anaesthesia for the unilateral low extremity orthopedic surgery in children. Analgesic effect of two methodics was analysed in 120 children (age 1-18 years old, ASA 1-2). Monolateral spinal anesthesia provides the same level of analgesia thus decreasing zone of desympathysation and providing more hemodynamic stability and decreasing loss of heat. Monolateral

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... l anesthesia is not complicated with urinary retention in contrast to classic spinal anaesthesia. Monolateral spinal anesthesia is an effective alternative to a classical spinal anesthesia for the unilateral low extremity orthopedic surgery in children.