I had SI JOINT FUSION 4 weeks ago. The surgeon used the iFUSE implant system and said everything went well. First post op. Check up X-rays showed good positioning. I started bearing full weight a little over a week ago. I haven't used any assistive devices (walker / crutches) in a week. I am having horrible pain in my groin area and front of the hip area, especially after bending over then walking . Does anyone know If this is common? If so, does it go away eventually?