Conditions: The Duration of Motor Block May Vary Between 12-36 Hrs
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 142
Healthy volunteers: no

Brief summary:
The duration of motor block for infragluteal parabiceps sciatic nerve block following total knee replacement may vary between 12-36 hrs depending on the amount of local anesthetic given.

Detailed description:

Arms:
arm 1: Varying does to determine duration of analgesia following a sciatic nerve block arm 2: Varying does to determine duration of analgesia following a sciatic nerve block

Interventions: intervention 1: Bupivacaine intervention 2: Ropivacaine
Intervention descriptions: intervention 1: Varying doses to determine the duration of analgesia intervention 2: Varying doses to determine the duration of analgesia

Protocol document: