Fig. 137.—Female child with Rickety deformities of upper and lower extremities.
(Mr. D. M. Greig's case.)
Radiograms reveal the changes in the bones ([Fig. 138]); the shaft of the femur or tibia, or both, which may also be curved, is set obliquely on its epiphysis; and the clear zone, corresponding to the epiphysial cartilage, is uneven and broader than normal. There are also less obvious changes in the density of the shadow and in the arrangement of the trabecular structure of the bones.
Fig. 138.—Radiogram of case of Double Genu Valgum in a child æt. 4.
Clinical Features.—In the infantile form ([Fig. 139]) the knock-knee is commonly associated with rickets in other parts of the skeleton, and especially with bending of the tibia and femur, and in extreme cases the child may be unable to walk.
