Japanese version of Patient-Rated Elbow Evaluation is a useful outcome measure that potentially reflects hand function in patients with rheumatoid arthritis who underwent total elbow arthroplasty

OBJECTIVES: We examined the relationship between the Japanese version of Patient-Rated Elbow Evaluation (PREE-J) and other established subjective and objective outcome measures in Japanese patients with rheumatoid arthritis (RA) who underwent total elbow arthroplasty (TEA). MATERIALS AND METHODS: This study involved 46 elbows of 40 RA patients. We collected clinical data 1 year after surgery, including the PREE-J, the Mayo Elbow Performance Score (MEPS), Disability of the Arm, Shoulder, and Hand (DASH), and Hand20. The correlation and responsiveness to PREE-J were evaluated compared with other outcome measures preoperatively and postoperatively. RESULTS: Almost all outcome measures were improved significantly after surgery. Preoperative PREE-J was significantly correlated with preoperative DASH, Hand20, and MEPS. Interestingly, postoperative PREE-J did not correlate with postoperative MEPS. Multiple regression analyses revealed that preoperative grip strength [B = -0.09; 95% confidence interval (95% CI) -0.17 to -0.01, p = 0.03] and preoperative Hand20 (B = 0.31, 95% CI 0.03-0.58, p = 0.03) were significant factors that might influence the postoperative PREE-J. CONCLUSIONS: The PREE-J was shown to correlate well with other preoperative outcome measures among the RA patients included in the current study. The postoperative PREE-J after TEA was influenced by the preoperative grip strength and function of the hand.