You should ask your doctor. It should be clear from the xray whether it is osteoarthritis or not. In patients over age 50 who have pain in the hip only, chances are high that the cause is osteoarthritis.
About Joan Bathon, M.D.
Dr. Bathon was a Co-Deputy Director of the Division of Rheumatology at Hopkins Bayview. She was also the founder and director of the Hopkins Arthritis Center.