Which joint contributes to stability of the midtarsal joint along the lateral column?

• A. Subtalar joint
• B. Tarsometatarsal joint
• C. Calcaneocuboid joint
• D. Talonavicular joint

Answer: (C)

Stability of the midtarsal joint along the lateral column is governed by the calcaneocuboid joint because it provides the key connection between the hindfoot and the lateral column (calcaneus to cuboid). This joint, reinforced by ligaments such as the long plantar ligament, helps prevent lateral splaying and keeps the lateral column as a relatively rigid lever during weight bearing and propulsion. The subtalar joint mainly enables hindfoot inversion/eversion, while the talonavicular joint belongs to the medial column and the tarsometatarsal joints link to the forefoot. Thus, the calcaneocuboid joint best contributes to stabilizing the midtarsal joint along the lateral column.