Nalbuphine, Fentanyl and no Additive to Local Anaesthetic Mixture

"All patients received 8 ml of LAM which consisted of: 6 ml of ml of bupivacaine 0.5%, 1 ml of hyaluronidase containing 150 IU, 1 ml of additive~Patients were categorized into three groups according to the type of additive used with the LAM as follows:~Group N:(Nalbuphine group)1 ml saline containing 4mg nalbuphine used instead of normal saline"

"All patients received 8 ml of LAM which consisted of: 6 ml of ml of bupivacaine 0.5%, 1 ml of hyaluronidase containing 150 IU, 1 ml of additive~Patients were categorized into three groups according to the type of additive used with the LAM as follows:~Group F: :(Fentanyl group)1 ml saline containing 20 μg fentanyl used instead of normal saline"

"All patients received 8 ml of LAM which consisted of: 6 ml of ml of bupivacaine 0.5%, 1 ml of hyaluronidase containing 150 IU, 1 ml of additive~Patients were categorized into three groups according to the type of additive used with the LAM as follows:~Group C (Control group): included patients assigned to receive 1 ml normal saline."