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What Causes Developmental Dysplasia Of The Hip?

Posted on Wed, 30 Apr 2014

Question: My son is 18 months old now. When he was 16 months old he had a surgery for lateral left hip dysplasia. The surgery was done by a very good Pediatric orthopedic surgeon Dr XXXXXXX in pheladelphia childrens hospital. He performed open reduction and bone grafting.. Now he is in spica cast. he will be in casting for two months. after 3 weeks of the surgery they took the MRI of his hip,and said ball is in the socket.. they will be removing his casting in coming month. In the last visit, Dr said after removing the cast my son will be using braces for couple of weeks and later he needs only in nap times till he is 2 and half years old. Ans till his adolescent frequent followups will be their. I just want to know answers for couple of my below questions. 1.My delivery was normal, he is full term baby and no breach position. Also in our both family history their is no hip history. why my son having hip problem. what can be the causes. 2.We are having appointment in next month for cast removal. at that time, what kind of queries i should him. 3.Till adolescent why my son needs frequent followups. 4. what else we should consider about his hip 5. How open reduction,bone grafting will be performed. what is the success rate?

Answered by Dr. Mukesh Chugh (1 hour later)

Brief Answer: DDH carries a good prognosis after surgery Detailed Answer: Hi Thanks for posting your query After going through your description, I have following explanation to answer your query- 1. The cause of Developmental dysplasia of the hip (DDH) in most cases is unknown and is considered to be a multifactorial condition. But having said following factors are found to increase the chances of DDH- a. Low levels of amniotic fluid in the womb during pregnancy b.Being the first child and although more common in girl child but it is not rare in boy. c. Large birth weight d. The postnatal extra uterine environment also plays a role in DDH. The incidence of DDH is high in cultures that use swaddling, which forces the hips into adduction and extension. 2. You should ask for care of the scar site, how to wear clothes and how to carry child. 3. The follow up are to look for - Subluxation/dislocation Normal development of hip and acetabulum Early sign of reduced blood supply to head of femur (AVN-avascular necrosis). 4. A healthy diet rich in vitamin D and calcium. 5. Open reduction and bone grafting had been performed as I go by your description.I am sorry regarding success rate but it carry a good prognosis and healthy development of hip. Hope this information suffices. Take care and I shall be glad to answer any further query Regards Dr.chugh, Orthopaedic surgeon

Note: For further queries, consult a joint and bone specialist, an Orthopaedic surgeon. Book a Call now.

Above answer was peer-reviewed by : Dr. Vaishalee Punj