hi,I'm angela..I have a son and he has right hip dislocation,he already done an operation at the right hip and undergone the rehabilitation after the operation.The right hip is shorter than the left but he can walk.I noticed that there is no changes after the operation and It became more shorter.He was 2years old when he undergone the operation and now he is 4 years old.Is it possible that his hip is dislocated again?but there is no pain..