FIGURE 36.100 Premature closure of triradiate cartilage. A, Fracture of right ilium is visible. Fracture on left was not identified. B, At 4 months, fracture on right is seen again. At left, acetabulum shows increased sclerosis caused by ischial fracture into acetabulum. C, At 5 years, premature closure of left triradiate cartilage. D, At 6 years, premature closure of left triradiate cartilage and subluxation of femoral head caused by shallow acetabulum.