Histogram showing the mean live tenocytes (%) (error bar represents the standard error) after treatment with normal saline (NS), 1% lidocaine (1% L), 2% lidocaine (2% L), 0.2% ropivacaine (0.2% R), 0.5% ropivacaine (0.5% R), dexamethasone (D), 1% lidocaine with dexamethasone (1% L+D), 2% lidocaine with dexamethasone (2% L+D), 0.2% ropivacaine with dexamethasone (0.2% R+D), and 0.5% ropivacaine with dexamethasone (0.5% R+D); p-values were determined using analysis of variance with Tukey’s post-hoc analysis comparing to NS control. n = 3, * = p < 0.01.