Adductor Hallucis

Lateral Plantar Nerve, Tibial Nerve, Sciatic Nerve, Ventral Division Sacral Plexus, SI, S2. 

From the peroneus longus tendon sheath and adjacent parts of the cuboid and second, third and fourth metatarsal bones (oblique head), and from the capsule of the third, fourth and fifth metatarsal-phalangeal joints (transverse head). 

Into the lateral aspect of the base of the proximal phalanx of the big toe. 

For the transverse head only Insert the electrode just proximal to the third metatarsalphalangeal (MP-3) joint until the metatarsal bone is felt withdraw the electrode slightly. 

If the electrode is inserted too superficially it will be in the lumbri-cal muscle. 

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The two tendons end at each side of the base of the proximal phalanx of the big toe, the medial one in a common tendon with that of the abductor, and the lateral one in a common tendon with that of the adductor hallucis brevis. 

If the needle electrode is inserted too deeply it will be either in the oblique or transverse head of the adductor hallucis. 

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