Analgesic Effects of Intra-Articular Bupivacaine/Intravenous Parecoxib Combination Therapy versus Intravenous Parecoxib Monotherapy in Patients Receiving Total Knee Arthroplasty: A Randomized, Double-Blind Trial

Table 4

Postoperative meperidine consumption during the first 24 hours.

	Control group	Bupivacaine group
Postoperative meperidine consumption (mg/Kg)	3.08 ± 0.80	2.34 ± 0.42	0.001

Continuous variables were described as mean ± standard deviation and an independent -test was used; statistical significance was considered when .