| tractotomy | Interruption of a nerve tract in the brainstem or spinal cord. Origin: L. Tractus, tract, + G. Tome, incision (05 Mar 2000) |
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| trigeminal tractotomy | Division of the descending fibres of the trigeminal tract in the medulla. Synonym: intramedullary tractotomy, Sjoqvist tractotomy. (05 Mar 2000) |