Hallux, sesamoid, and first metatarsal injuries.

Hallux, sesamoid, and first metatarsal injuries are common foot injuries and have implications in the biomechanical functionality of the first ray and foot. They are essential for propulsion in normal gait. As part of the first ray, it is an important contributor to normal locomotion. Any structure disruption or injury can create angular changes or arthritis, which can have biomechanical implications, including pain, disability, compensation, swelling, and reduced range of motion. Published by Elsevier Inc.