Traumatic Dislocation of the Hip in a Child Caused by Trivial Force for Age

Table 1

Classification of traumatic dislocation of the hip [4].

Grade I	A dislocation with or without an insignificant chip fracture from the acetabular rim
Grade II	A dislocation with one or more large fragments from the acetabular rim, but with a sufficient socket remaining to ensure stability after reduction
Grade III	A dislocation with a blast fracture and disintegration of the acetabular rim that produces gross instability
Grade IV	A dislocation combined with a fracture of the neck or head of the femur