EE NOTED THE ONSET OF HIP PAIN IN MAY 2000 AND WAS DIAGNOSED WITH LEFT HIP AVASCULAR NECROSIS. HE STATES THAT THE PAIN IN HIS HIPS WAS SEVERELY AGGRAVATED AT WORK, WHICH REQUIRED HIM TO REMAIN ON HIS FEET ALL DAY AND WALK BACK AND FORTH IN A LIMITED AREA. MAY 7, 2001 HE UNDERWENT A LEFT HIP FREE VASCULARIZED FIBULAR GRAFT FOR AVASCULAR NECROSIS, CREST BONE GRAFT, & CORE DECOMPRESSI