1072 



Veterinary Obstetrics 



rior limbs extended, it assumed the position shown in Fig. 153. 

 Of the six cases observed, four died in a few days after birth or 

 were destroyed as hopeless. Two recovered, and are still living 

 and performing satisfactory services, without extensor pedis 

 muscles. The animals extend their fore feet by the extensor 

 pedis accessorius and the extensors of the metacarpus, producing 

 a peculiar gait. 



The cause of rupture of the extensor pedis tendons in the new- 

 born is unknown. In the region where we have observed these 

 cases, that group of bone diseases of which spavin, ring bone and 

 navicular disease are typical, is very common, and it is possible 



Fig. 153. :Extreme Luxation of the Pateli^^ in a New-born Foai,. 



Accompanied by rupture of the two extensor pedis longus muscles of the 

 anterior limbs. From a photograph, a. Patella ; b, Femoro-tibial ar- 

 ticulation. 



