ANKLE JOINT 



421 



the deltoid accessory ligament, and laterally it is fused with 

 the deep surfaces of the anterior and posterior talo-nbular 

 ligaments, but it has little or no connection with the calcaneo- 

 fibular ligament. The anterior part of the capsule (O.T. 

 anterior ligament) extends from the anterior margin of the 

 distal articular surface of the tibia to the anterior part of the 



FIG. 195. Ankle and Tarsal Joints from the Medial Aspect. 



1. First tarso-metatarsal joint (opened). 



2. Tendon of tibialis anterior muscle 



(cut). 

 ^. Medial cuneo-navicular joint (opened). 



4. Dorsal cuneo-navicular ligament. 



5. Head of talus. 



6. Dorsal talo-navicular ligament. 



7. Trochlear surface of talus. 



8. Medial malleolus. 



9. Deltoid ligament of the ankle. 



10. Trochlear surface of talus. 



IT. Groove for tendon of tibialis posterior 



muscle on plantar calcaneo-navicular 



ligament. 



12. Groove and tunnel for the tendon of 



flexor hallucis longus muscle. 



13. Calcaneus. 



14. Sustentaculum tali. 



15. Tendon of tibialis posterior fflmscle (cut). 



16. Long plantar ligament. 



dorsal surface of the neck of the talus. Therefore a transverse 

 vertical cut through the dorsum of the foot, immediately in 

 front of the tibia, will open the ankle joint (see Fig. 197). 

 The very short posterior part of the capsule (O.T. posterior 

 ligament) is attached to the margins of the articular surfaces. 



