This 3D printed specimen provides a parasagittal cross-section through the medial aspect of the right distal tibia and foot, showcasing the skeletal structures of the medial longitudinal arch and surrounding soft tissues.
Proximal Structures: Tendons and Muscles
Proximally, the tendocalcaneus (Achilles tendon) is visible, lying superficial to the deep posterior compartment muscles and inserting into the posterior calcaneus.
Plantar Surface: Musculature and Aponeurosis
On the plantar surface of the medial arch, the plantar aponeurosis extends from the calcaneus toward the toes. A sectioned lateral sesamoid is positioned at the head of the hallux. Portions of the lateral head of the flexor hallucis brevis, flexor digitorum brevis, and quadratus plantae are preserved, while the lateral plantar neurovascular bundle is sectioned.
Deep Structures: Tendons and Insertions
Deep to these muscles, the flexor digitorum longus tendon passes obliquely near the calcaneus and talar neck. The tibialis posterior tendon is visible inserting at the navicular and medial cuneiform articulation.