- Position
- supine
- can exanguinate leg if using tourniquet
- Incision
- begin incision anteromedial to fibula 5 cm proximal to ankle joint
- carry incision over ankle joint to base of fourth metatarsal
- may be extended both proximally and distally
- Superficial dissection
- incise fascia, superior and inferior extensor retinacula down to periosteum of distal tibia and ankle joint capsule
- identify and retract intermediate dorsal cutaneous branches of superficial peroneal nerve
- retract extensor tendons, deep peroneal nerve, and dorsalis pedis artery medially
- divide extensor digitorum brevis in direction of its fibers (or may detach proximal origin and reflect distally)
Deep dissection
- expose ankle joint capsule
- expose talonavicular joint and calcaneocuboid joint (same plane)
- expose subtalar joint (must first remove lateral fat pad)
- if needed: extend dissection distally to expose joint between cuboid and 4th and 5th metatarsals
- if needed: extend dissection distally to expose joint between cuboid and third cuneiform
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