Developmental dysplasia of the hip affects 1–3% of newborns and is responsible for 29% of primary hip replacements in people up to the age of 60 years.5 In India, the incidence has been reported to be 1.0–9.2 per 1000 in various studies with the incidence being more in northern region.6–8 95–98% of DDH cases are possibly reversible. 2% of DDH cases may have teratologic dislocation which is generally not reversible. 60% will normalize with no treatment after 1 month. 88% will normalize with no treatment after 2 months. This comes to about 1–2 patients per 1000 which have a true DDH and which will go on to produce the pathological changes of DDH. The left hip is dislocated more often than the right and 20% of cases are bilateral.

Developmental dysplasia of the hip affects 1–3% of newborns and is responsible for 29% of primary hip replacements in people up to the age of 60 years.⁵ In India, the incidence has been reported to be 1.0–9.2 per 1000 in various studies with the incidence being more in northern region.^6–8

95–98% of DDH cases are possibly reversible. 2% of DDH cases may have teratologic dislocation which is generally not reversible. 60% will normalize with no treatment after 1 month. 88% will normalize with no treatment after 2 months. This comes to about 1–2 patients per 1000 which have a true DDH and which will go on to produce the pathological changes of DDH.

The left hip is dislocated more often than the right and 20% of cases are bilateral.