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Adequate flank regional anaesthesia was achieved using ultrasound-guided nerve block of the 13th thoracic, 1st and 2nd lumbar spinal nerves after their exits from their intervertebral foraminae with only 5 ml of lidocaine 2%. Twelve successful trials were conducted on 4 buffaloes without any complications.
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Mohamed Shokry (2012) studied this question.
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