Hi, thanks for writing to HCM.
Persistent pain in the injured even 2 years after the injury
implies that there is some problem either in the hip joint proper or in the soft tissues outside the hip joint.
scan of the involved area will pick up all the soft tissue lesions including the hip joint status and establishes the diagnosis.
The specific treatment depends on the diagnosed condition.
I suggest you to consult an orthopedic surgeon for further evaluation and management.
Hope this information is helpful. Good day