Suggest Remedy For Avascular Necrosis And Pain During Walking

I AM 56 YEARS OLD.TWO YEARS AGO I MET WITH AN ACCIDENTAND BROKEN MY HIP AND DISLOCATE OF MY HIP JOINT.I OPRATED AND ROD HAS BEEN FIXED TO SUPPORT MY PELVIC BROKEN BONE.AFTER ONE YEAR I DIOGNESD AVASCULAR NECROSIS.AT PREASENT I CAN WALK BUT NOT MORE THEN 500 METERS.BY SITTING AND SLEEPING I AM NOT FEELING ANY PAIN BUT BY WALKING I CAN NOT PUT FULL WEIGHT ON MY RIGHT LEG.PLEASE ADVISE WEATHER IT IS A CASE OF SURGERY OR LET IT BE AS IT IS AND NATURE TO HELP IN DUE COURSE.