Foot and Ankle
The foot and ankle in the human body work together to provide balance, stability, movement, and Propulsion.
This complex anatomy consists of:
- 26 bones
- 33 joints
- Blood vessels, nerves, and soft tissue
The ankle joint is composed of three bones: the tibia, fibula, and talus which are articulated together. The ends of the fibula and tibia (lower leg bones) form the inner and outer malleolus, which are the bony protrusions of the ankle joint that you can feel and see on either side of the ankle. The joint is protected by a fibrous membrane called a joint capsule, and filled with synovial fluid to enable smooth movement.
The foot has 26 bones, and can be divided into 3 parts:
The calcaneus or heel bone is a large bone found on the rear part of the foot. The calcaneus connects with the talus and cuboid bones to form the subtalar joint of the foot. A fracture is a break in a bone from trauma or various disease conditions.
Lisfranc (Midfoot) Fracture
Tarsometatarsal joint refers to the region found in the middle of the foot. It is also called as Lisfranc joints. It is a junction between the tarsal bones (group of seven articulating bones in the foot) and metatarsal bones (a group of five long bones in the foot).
Stress Fractures of the Foot and Ankle
A stress fracture is described as a small crack in the bone which occurs from an overuse injury of a bone. It commonly develops in the weight bearing bones of the lower leg and foot.
The talus is a small bone at the ankle joint that connects the heel bone and the two bones of the lower leg, enabling the up and down movement of the foot. Fractures in the talus bone may occur due to a fall from great heights, motor vehicle accidents or twisting of the ankle.
Toe and Forefoot Fractures
The forefoot is the front of the foot that includes the toes. Fractures occurring in this part of the foot are painful but very often not disabling. There are 2 types of fractures namely, traumatic fracture and stress fracture.