162 



TOPOGBAPHICAL ANATOMY OF 



medial surface of the talus. The ligament spreads out over the dorsal 

 surface of the central (scaphoid) and third tarsal (lateral cuneiform) 

 bones, to which some of its fibres are attached, and ends on the second 

 and third metatarsal bones. 



The plantar tarsal ligame?it (ligamentum tarsi plantare) is strong, 

 and runs down the back of the tarsus under cover of the plantaris 

 tendon (strictly speaking, the modified flexor digitorum brevis) in the 

 form of a band that gradually widens and thickens. It begins on the 

 plantar (posterior) border of the tuber calcanei, is attached to the 



Tibial tarsal boue (talus) 



Fibular tarsal bone 

 'calcaneus). 



Tibia. 



Lig. collaterale tibiale,^ - " 

 (deep). 



Lig. collaterale tibiale (superficial) 

 Lig. tarsi dorsale 



Third metatarsal bone. 



Sustentaculum tali. 

 Lig. tarsi plantare. 



-- - - Second metatarsal bone. 



Fig. 115. — Medial Aspect of the Tarsal Articulations. 



central and the third and fourth tarsal bones, and ends on the bases of 

 the third and fourth metatarsals. 



The individual tarsal bones are connected by numerous short liga- 

 ments, few of which can be regarded as of great moment. There are 

 four ligaments connecting the talus and calcaneus. (1) A proximal or 

 posterior talo-calcanean ligament (ligamentum talo-calcaneum posterius) 

 lies at the most proximal point of contact of the two bones. (2 and 3) 

 Lateral and medial ligaments (ligamenta talo-calcaneum laterale et 

 mediale) are attached to the lateral and medial surfaces respectively 

 of the two bones, and are mainly hidden by the collateral ligaments 

 of the joint. (4) An interosseus ligament (ligamentum talo-calcaneum 

 interosseum) passes between the two bones, and is attached to the 

 depressions between their articular facets. 



A lateral and a plantar ligament join the calcaneus to the fourth 

 tarsal bone (cuboid). A dorsal ligament joins the calcaneus to the 



