Patient's question:
Developmental Dysplasia of the Hip (DDH)Shanghai Bo'ai Hospital
Pediatric Orthopedics
Taizhou Orthopedics
Pediatric Orthopedics
Doctor's answer:
For infants, since the structures of the hip joint have not fully ossified, X-ray images show insufficient radiopacity, and the diagnosis relies solely on the relationship between the femoral neck and the bony acetabulum to indirectly infer the head-acetabular relationship, thereby significantly reducing its diagnostic value. In such cases, color Doppler ultrasound can clearly reveal the relationship between the cartilaginous femoral head and the acetabulum, making it more suitable for early diagnosis of hip dysplasia or dislocation. For a 6-month-old child, both color Doppler ultrasound and X-ray examinations should be combined for comprehensive judgment. Currently, there is no clear evidence of hip dislocation or subluxation, so it is recommended to avoid special treatment for now and undergo follow-up examinations every 3 months.