Fig. 2.

Mean values of functional outcome measurement by Barthel Index (a) and EQ-VAS (b), within group p values to compare data between baseline and 3 months postoperatively during both the pre-pandemic and pandemic periods, and between group p values at baseline and 3 months postoperatively. The numbers (n) of patients in each graph indicate the number of patients with complete data at both baseline and 3 months. The data were analyzed by using the t test