Moberg and Moberg-Akin ('Mo-Akin') Osteotomies for Hallux Rigidus.

Hallux rigidus represents the arthritis affecting the first metatarsophalangeal joint. It often leads to limited dorsiflexion, affecting gait and causing pain. Moberg osteotomy involves a dorsal closing wedge osteotomy on the proximal phalanx performed for early stages of hallux rigidus. This osteotomy shifts the load to the plantar aspect and compensates for the limited dorsiflexion. Moberg osteotomy can be combined with Akin osteotomy to create a biplanar correction for hallux interphalangeus. The procedure has favorable outcomes and high patient satisfaction rates with low complications. Larger high-quality studies are required to draw further on its benefits.