A hip pinning is a type of surgery to fix a broken (fractured) hip. Another name for hip pinning is fracture repair and internal fixation. Hip pinning uses pins, screws, or plates to help hold broken bones together so they can heal correctly. Your thighbone (femur) meets with your pelvis at your hip joint.
If the implanted hip stem is not stable it can cause pain, classically in the groin and thigh. If the pain is from stem movement in the upper femur, we would expect the pain to occur with movement and not during rest.