A Dorsal Approach for the Removal of the Nasal Septum in the Horse

Abstract

To describe and evaluate a technique involving a dorsal approach for the removal of the nasal septum in adult horses. Retrospective clinical study. Four client-owned horses. Access for partial nasal septum resection was through a dorsal nasal bone flap. Septum resection was performed because of reduced airflow from septal deviation and/or thickening caused by traumatic insult or neoplasia. Preoperative clinical signs and diagnostic results were recorded. Intra- and postoperative complications were noted and follow-up information was obtained from telephone interviews of owners or by clinical examination. The abnormal segment of the nasal septum was completely removed in all horses. A dorsal nasal bone flap approach provided excellent access to the septum and allowed immediate control of hemorrhage; blood transfusion was not needed. Cosmetic results were considered good to excellent by owners and horses returned to their previous level of work without perceived limitations associated with airway function. Nasal septum resection by the dorsal approach permits good observation of the abnormal septum, and provides exposure that facilitates removal of nasal masses and reduction of depression fractures with minimal complications. A dorsal nasal bone flap approach should be considered for horses that require nasal septum resection because it can be achieved with minimal hemorrhage, good cosmetic results, and return to function.