RCT 120 mod-severe hip OA (KL 2-4) pts Rx w/ THA +rehab or exercise. @12 mos. THA had signif. better pain, function & HRQoL vs exercise program alone (WOMAC total -30.9 vs -3.7). (38% of exercise/conservative grp needed THA) https://t.co/6vvRAr6isf https://t.co/VOYgS3PPwr