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.
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.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
40
10 ml of 0.25% bupivacaine
10 ml of preservative free normal saline
Northwestern University Feinberg School of Medicine
Chicago, Illinois, United States
Opioid Consumption (mg morEq)
Opioid consumption (morphine equivalents)
Time frame: 36 hours
Visual Analog Scale Pain Score
Visual Analog Scale pain score; 0 = no pain, 10 = excruciating pain) in the knee recorded every 6 hours up to 36hrs following surgery.
Time frame: Pain burden at 36hr
Length of Hospitalization
The average time to discharge in hours. Participants were discharged home went physical therapy criteria were met.
Time frame: 0 to 192 hours
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