PROMIS physical function two weeks following orthopaedic surgery.

ABSTRACT

Many patients opt for elective orthopaedic procedures to regain physical function. However, little data exist about patient-reported early postoperative function. PURPOSE: To characterize physical function two weeks postoperative from upper and lower extremity orthopaedic surgery and to determine pre-operative factors that are associated with physical function two weeks following surgery. METHODS: Patients 17 years and older undergoing elective orthopaedic surgery at one institution were enrolled prospectively and completed questionnaires prior to surgery and again two weeks postoperatively. The questionnaires included six of the PROMIS computer adaptive questionnaires Physical Function (PF), Pain Interference, Fatigue, Social Satisfaction, Anxiety, and Depression; a joint-specific function questionnaire, a joint numeric pain scale, and a body numeric pain scale. Physical activity levels were measured using Tegner, IPAQ, and Marx. Responses were analyzed using Spearman's correlation coefficient, ANOVA, and multivariate linear stepwise regression with two-week PF as the dependent variable. RESULTS: 435 patients (47% female) with mean age 41.1 ± 15.7 were included in our final analysis. Mean baseline PF score was 42.1 and mean two-week PF score was 35.5 (p < .0001). Patients undergoing upper extremity surgery had higher PF at two weeks than those undergoing lower extremity surgery (39.1 vs 32.2, p < .0001). Younger age, Hispanic ethnicity, preoperative narcotic use, injury prior to surgery, and procedure all had a significant relationship with lower 2-week postoperative PF score (p < 0.05). Numerous baseline and 2-week measures were correlated with postoperative PF score, with 2-week Social Satisfaction demonstrating the strongest correlation (rs = 0.604, p < .0001). Multivariable regression confirmed that the better preoperative PF score and upper extremity surgery were independent preoperative predictors of better 2-week PF scores. CONCLUSIONS: Patients have a significant decline in physical function following orthopaedic surgery, with those undergoing lower extremity surgery having a significantly greater decline. Many factors are associated with activity levels, including mental health, pain, and satisfaction. This information can be used to help manage patients' short-term expectations.