Abductor Digiti Minimi

These fractures are typically subdivided into three types depending on their location. Zone 1 is the cancellous tuberosity, which includes the insertion of the peroneus brevis and abductor digiti minimi tendons and the lateral cord of the plantar fascia. Zone 2 is the distal aspect of the tuberosity and includes dorsal and plantar ligamentous attachments to the fourth metatarsal. Zone 3 comprises the zone distal to the ligamentous attachments to the mid-diaphyseal area. 

If the electrode insertion is too deep, it will enter either abductor digiti minimi or the opponent digit minimi. 

If the electrode is inserted too laterally it will be in the abductor digiti minimi if inserted too medially it will be in the lumbrical. 

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