Anatomy and Biomechanics of the Foot

Bone Structure and Function

The cuboid bone articulates with the calcaneus proximally and the fourth and fifth metatarsals distally, as described by the American College of Cardiology 1
Three cuneiform bones (medial, intermediate, and lateral) articulate with the navicular proximally and the first three metatarsals distally, according to the British Journal of Sports Medicine 2
The first metatarsal is the shortest and thickest, bearing significant weight during walking, as noted by Praxis Medical Insights 3
The fifth metatarsal has a prominent tuberosity on its lateral side, which is a common site for fractures, as reported by Praxis Medical Insights 4

The foot can be divided into three distinct anatomical regions: forefoot, midfoot, and hindfoot, with the forefoot extending from the tarsometatarsal joint and incorporating the phalanges, metatarsal, and sesamoid bones, as described by the American College of Cardiology 1
The Ottawa Ankle Rules include palpation pain at the base of the fifth metatarsal bone and navicular bone as key indicators for potential fractures, according to the British Journal of Sports Medicine 2

Metatarsalgia (pain in the metatarsal region) often requires treatment with metatarsal pads placed behind the metatarsal heads to relieve focal pressure, as recommended by Praxis Medical Insights 3
For patients with diabetes and bony deformities of the foot, extra wide or deep shoes are recommended to prevent complications, as suggested by Praxis Medical Insights 3
Surgical interventions for metatarsal-related conditions should only be considered after conservative measures have failed, as advised by Praxis Medical Insights 3