The oblique head is the largest adductor component, arising broadly from the midfoot and providing primary hallux adduction force and transverse arch stabilisation.
| Origin | Bases of the second, third, and fourth metatarsals and peroneus longus tendon sheath |
|---|---|
| Insertion | Lateral base of hallux proximal phalanx via the lateral sesamoid |
| Nerve Supply | Deep branch of lateral plantar nerve (S2, S3) |
| Blood Supply | Plantar metatarsal arteries |
| Actions | Adducts the hallux; Flexes the hallux MTP joint; Stabilises the transverse arch |
|---|
In hallux valgus, the contracted oblique adductor head pulls the hallux into progressive valgus. Surgical correction requires lateral soft tissue release including division of the oblique head.
Not directly palpable — located in the deep plantar midfoot.
Division of the oblique head from the lateral sesamoid during hallux valgus correction to release the contracted lateral soft tissues.
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