84 THE SURGICAL ANATOMY OF THE HORSE 



ing two articular convexities. As in the fore limb, it is articulated to 

 the two sesamoid bones and to the os suffraginis. 



The Small Metatarsal Bones. — These also bear a close resemblance to 

 the corresponding bones of the fore limb. They have, however, a 

 slightly greater length, and their heads are more massive. 



FRACTURE OE THE METATARSAL BONES 



The metatarsal bones are sometimes fractured as a result of a kick, 

 or it/ might be the result of the animal's having been run over. In 

 collieries it sometimes occurs when the animal becomes wedged between 

 the " tubs." Young animals not infrequently get the leg fixed in a gate or 

 hurdle when attempting to jump, and the bones are completely fractured. 

 Occasionally as the result of a kick the bone is not completely fractured, 

 but we have a number of fissures radiating from a centre, which is the 

 spot where the blow was received. Profuse hemorrhage is a not un- 

 common complication, and when this occurs it will usually be found 

 that the large metatarsal artery has been opened. The position of the 

 artery may be located without much difihculty. An incision should be 

 miade in the groove between the large and outer small metatarsal bones 

 above the seat of the injury, when there will be no difficulty in picking 

 the vessel up and applying a ligature (see " Peroneal Tenotomy " and 

 Chapter on vessels). 



If the fracture be complete and treatment is desired, the animal 

 should be placed in slings and Bourgelat's splint applied. 



The affisctions of the remaining bones of the hind limb are similar 

 to those already described in the second volume, dealing with the 

 corresponding bones of the fore limb. 



