Dehiscence is a concerning complication for any surgical wound. Surgical repair over the equine sinus can be complicated by many factors including lack of bone support, skin tension, or unresolved sinus infection. Chronic wounds are challenging to repair for the above reasons as well as the presence of fibrosis or scar tissue adjacent to the wound. In this case report, an axial pattern rotational flap and a transpositional flap were used to repair a chronic non-healing wound in a horse.

Learning Objectives
Attendees will be able to:
1. explain reasons for failure of surgical repair
2. describe different types of skin flaps
3. apply an axial pattern flap for repair of a sinus wound in a horse