MIRA2002 Study Guide - Final Guide: Tarsometatarsal Joints, Cuneiform Bones, Arthropathy

• School: Curtin University
• Department: Medical Imaging, Radiology & Radiography
• Course: MIRA2002
• Professor: Yasas Botenne

Document Summary

Extra accessory bone that develops behind the talus, connected to the talus by a fibrous band. Most people can only plantar flex to 30-50 degrees. Most people can only dorsi flex to about 20-30 degrees. Sinus tarsi : sulcus tali + sulcus calcanei form it, sulcus calcanei groove between posterior and middle articular facets on the superior surface. 45 degrees with the long axis of the calcaneum: contains interosseous talocalcaneal ligament. Ridge on the medial aspect of the calcaneus, about 2. 5cm distal to medial malleolus. Head of the talus is between the sustenaculum tali and the tuberosity of the navicular. Medial and lateral cuneiforms project further forwards than the intermediate cuneiform. Gap is occupied by the base of the 2nd metatarsal, increasing foot stability. Sesamoid bones and the head of the 1st metatarsal form the ball of the foot. Bipartite having or composed of two parts, 25% of people have bipartite sesamoid bones.