did not achieve significancep = 0.055
8 Marchand et al 11 studied 40 total patients (20 RA-TKA, 20 manual TKA) and found that six-month postoperative Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) 22 pain and WOMAC total scores were significantly better in RA-TKA patients compared to manual TKA patients (p < 0.05 for both), while six-month postoperative WOMAC physical function scores did not achieve significance (p = 0.055). 11 At three-month follow-up, Khlopas et al 23 found equal or greater improvements in nine out of ten KSS components for 150 RA-TKA patients compared to 102 manual TKA patients, but not all findings achieved statistical significance.