subtalární

Subtalární refers to the anatomical region or joint located below the talus bone in the foot. This joint, also known as the talocalcaneal joint, is formed between the posterior facet of the talus and the superior surface of the calcaneus (heel bone). It plays a crucial role in the inversion and eversion movements of the foot, which are essential for balance, walking on uneven surfaces, and adapting to the ground.

The subtalar joint is a synovial joint, meaning it is enclosed by a capsule filled with synovial fluid, allowing for smooth movement. It is a complex articulation with multiple articulating facets, contributing to its intricate function. The stability of the subtalar joint is maintained by a network of ligaments, including the interosseous talocalcaneal ligament, which is considered the primary stabilizer.

Disruptions or injuries to the subtalar joint can lead to pain, stiffness, and limitations in ankle and foot mobility. Conditions affecting this joint include subtalar arthritis, fractures of the talus or calcaneus that involve the joint, and subtalar impingement. Surgical interventions may be considered for severe cases, aiming to restore function and alleviate pain. Understanding the anatomy and biomechanics of the subtalar joint is vital for diagnosing and treating a variety of foot and ankle pathologies.