- Discussion:
- is excellent for triple arthrodesis and for resection of a calcaneonavicular bar;
- incision may be extended to expose the subtalar, calcaneocuboid, and talonavicular joints;
- wound usually heals well because the proximal flap is dissected full thickness and the skin edges are protected during retraction;
- Cautions:
- preserve dorsal cutaneous branches of superficial peroneal nerve which cross the incision;
- Incision:
- begins over dorsolateral aspect of the talonavicular joint,
- continue incision obliquely & inferoposteriorly to end about 1 inch inferior to lateral malleolus;
- superiorly expose long extensor tendons to toes and retract them medially, w/o opening their sheaths;
- inferiorly expose the peroneal tendons and retract them inferiorly;
- divide origin of extensor digitorum brevis muscle & retract it distally;
- this exposes sinus tarsi