RESULTS	The VAS pain scores were 3.1 + / - 2.4 for needle only , 4.4 + / - 2.8 for bupivacaine , 2.5 + / - 2.0 for ropivacaine , 4.7 + / - 2.7 for bupivacaine/dexamethasone , and 3.7 + / - 2.2 for ropivacaine/dexamethasone .\