Question
A 7-month-old infant underwent a detailed hip bone examination, and magnetic resonance imaging revealed: the left hip bone is abnormal, with an a angle over 60 degrees, no detected femoral head ossification center, and the superior edge of the acetabulum is sharp; the right hip bone is also abnormal, with an a angle equal to 60 degrees, no detected femoral head ossification center, and the superior edge of the acetabulum is acute. What do these results mean? Treatment history and outcomes: