What is Hip Dysplasia?
Hip dysplasia is a general term for infantile hip instability, dislocation, or shallowness of the hip socket. Hip instability and dislocation are more likely to occur during infancy, while a shallow stable socket is more often discovered in adolescence or adulthood.
The infant and child type is often referred to as Developmental Dysplasia of the Hip or DDH. DDH is generally the preferred term for babies and children with hip dysplasia because this condition develops around the time of birth, including after birth. The term Congenital Dislocation of the Hip is rarely used today because the word congenital means the condition is always present at birth and is usually associated with a defect where something is missing or added to normal tissue. In the case of DDH, the infant/child’s joint is otherwise normal except for the instability.
Hip dysplasia diagnosed during adolescence or adulthood is often called acetabular dysplasia because the socket (acetabulum) is shallow and does not fully support the ball (femoral head).
These are some of the terms used for hip dysplasia depending on severity and time of occurrence. These names include:
- Hip Dysplasia
- Developmental Dislocation of the Hip (DDH)
- Hip Dislocation
- Developmental Dysplasia of the Hip (DDH)
- Acetabular Dysplasia
- Congenital Dislocation of the Hip (CDH)