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Valgus Leg Deformities
Twisted Leg, Angular Bone Deformity
Valgus leg deformities is a type of leg deformity causing twisting of the legs and long bone distortion. It usually occurs in young chicks between 2 to 7 weeks of age. It most often occurs in both legs.
Chickens affected by this deformity are more at risk of developing a slipped tendon or leg fracture, due to the increased pressure placed on the deformed leg. In one study, 60% of birds affected with severe valgus developed slipped tendon. Once this occurs, the chicken may be physically incapable of getting up from its abnormal, twisted leg-like position. Without intervention, these chickens will eventually starve to death from inability to reach water or food, or from getting trampled to death by other flock members.