Document Classification

Section Type: METHODS

Text: Seventy-five patients were randomly allocated to 5 equal groups as follows : Group I (n = 15) had the musculus multifidi near the operated level infiltrated with 30 mL 0. 25 % bupivacaine and 40 mg methylprednisolone just before wound closure ; Group II (n = 15) had the same region infiltrated with 30 mL 0. 25 % bupivacaine alone before closure ; Group III (n = 15) had this region infiltrated with 30 mL 0. 25 % bupivacaine and 40 mg methylprednisolone before the incision was made ; in Group IV (n = 15), this region infiltrated with 30 mL 0. 25 % bupivacaine alone before incision ; and Group C (controls, n = 15) had this region infiltrated with 30 mL 0. 9 % NaCl just before wound closure.