An approach to hindlimb lameness 4. Practical aspects of local analgesia

IN the previous article, the principles of local analgesic techniques were discussed in general terms (In Practice, February 1997, pp 82-88). This article describes specific nerve block techniques and their potential limitations. Although, theoretically, nerve blocks should start as far distally as possible - eliminating, sequentially, pain arising from the plantar aspect of the foot, the foot and pastern, and then fetlock - the incidence of distal limb problems is less common in hindlimbs than in forelimbs. Therefore, a strategic approach is suggested based upon the results of a detailed clinical examination, gait analysis and response to flexion tests.