350 



SYNDESMOLOGY 



The Articular Capsule (capsula articularis; capsular ligament). The articular cap- 

 sule surrounds the joints, and is attached, above, to the borders of the articular 

 surfaces of the tibia and malleoli ; and below, to the talus around its upper articular 

 surface. The anterior part of the capsule (anterior ligament) is a broad, thin, 

 membranous layer, attached, above, to the anterior margin of the lower end of 

 the tibia; below, to the talus, in front of its superior articular surface. It is in 

 relation, in front, with the Extensor tendons of the toes, the tendons of the Tibialis 

 anterior and Peronseus tertius, and the anterior tibial vessels and deep peroneal 

 nerve. The posterior part of the capsule (posterior ligament) is very thin, and 

 consists principally of transverse fibers. It is attached, above, to the margin of the 

 articular surface of the tibia, blending with the transverse ligament ; below, to the 

 talus behind its superior articular facet. Laterally, it is somewhat thickened, and 

 is attached to the hollow on the medial surface of the lateral malleolus. 





Ant. lat. malleol. lig. 



Post. lot. malleol. lig 



Dorsal talonavic. lia. 



\ Calccmeonamc. part\ 

 I Calcaneocuboid partf Blfurcaied H - 

 j Dorsal cuboideonavic. lig. 



Dorsal navicular cuneif. lig. 

 I Dorsal cuneocuboid lig. 

 .1 [Dorsal intercuneif. UQ, 



. , 

 X/DorsaZ tarsometat. lig 



Post, talofibular lig 



I Dorsal 

 \calcaneocul)-t 

 | lig. 



Long plantar lig. 

 \Interos. talocalcan. lig. 

 Ant. talofibular lig. 

 Calcaneofibular lig. 



Dorsal intermet. lig. 

 Dorsal tarsomet, lig. 



FIG. 355. The ligaments of the foot from the lateral aspect. (C^uain.) 





The Deltoid Ligament (ligamentum deltoideum; internal lateral ligament) 

 (Fig. 331). The deltoid ligament is a strong, flat, triangular band, attached, 

 above, to the apex and anterior and posterior borders of the medial malleolus. 

 It consists of two sets of fibers, superficial and deep. Of the superficial fibers the 

 most anterior (tibionavicular) pass forward to be inserted into the tuberosity of 

 the navicular bone, and immediately behind this they blend with the medial margin 

 of the plantar calcaneonavicular ligament; the middle (calcaneotibial) descend 

 almost perpendicularly to be inserted into the whole length of the sustentaculum 

 tali of the calcaneus; the posterior fibers (posterior talotibial) pass backward and 

 lateralward to be attached to the inner side of the talus, and to the prominent 



