Conditions: Complications; Arthroplasty Knee Injuries
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 40
Healthy volunteers: no

Brief summary:
Total knee arthroplasty is associated with intense early postoperative pain. Fast track recovery programs including early therapy protocols and early hospital discharge are being implemented at various hospitals. The postoperative analgesic pain regimen should enhance functional recovery in addition to providing efficient analgesia with minimal side effects. Adductor canal blockade is commonly used to provide postoperative analgesia for total knee arthroplasty (TKA) surgery. The investigators hypothesize that an ultrasound guided adductor canal block will lower narcotic consumption and improved overall satisfaction compared to ultrasound guided sham block with normal saline (placebo) for patients undergoing minimally invasive TKA surgery.

Detailed description:
The investigators hypothesize that an ultrasound guided adductor canal block will lower narcotic consumption and improved overall satisfaction compared to ultrasound guided sham block with normal saline (placebo) for patients undergoing minimally invasive TKA surgery.

Arms:
arm 1: Ultrasound-guided adductor canal blockade with 10 ml of 0.25% bupivacaine arm 2: Ultrasound-guided sham block with 10 ml of preservative free normal saline

Interventions: intervention 1: Bupivacaine intervention 2: Preservative free normal saline
Intervention descriptions: intervention 1: 10 ml of 0.25% bupivacaine intervention 2: 10 ml of preservative free normal saline

Protocol document: