Dual Subsartorial Versus Adductor Canal Block Versus Femoral Nerve Block for Postoperative Analgesia in Patients Undergoing Total Knee Arthroplasty

Dual Subsartorial Block Versus Adductor Canal Block Versus Femoral Nerve Block for Postoperative Analgesia in Patients Undergoing Total Knee Arthroplasty: A Randomized Clinical Trial

This study aims to compare the effect of dual subsartorial block (DSB), adductor canal block (ACB), and femoral nerve block (FNB) for postoperative analgesia in patients undergoing total knee arthroplasty (TKA).

Total knee arthroplasty (TKA) offers increased joint mobility and painless ambulation to patients. Femoral nerve block (FNB) is commonly used to relieve postoperative pain and opioid consumption.

Adductor canal block (ACB) is a common analgesic intervention for postoperative pain control following TKA. The dual subsartorial block (DSB) is a novel procedure-specific and motor-sparing regional analgesia (RA) technique that may reduce overall postoperative opioid consumption when used in conjunction with multimodal analgesia.

Inclusion Criteria:

• Age from 18 to 75 years.
• Both sexes.
• American Society of Anesthesiology (ASA) physical status I-II.
• Undergoing total knee arthroplasty (TKA) under general anesthesia.

Exclusion Criteria:

• Severe valgus deformity.
• Acute/chronic kidney disease.
• Neurological deficit.
• Cognitive dysfunction.
• Local infection at the site of injection.
• Coagulopathy.
• Hypersensitivity and/or allergies to local anesthetic (LA) or any of the study medications.
• Chronic opioid consumption (daily or almost daily use of opioids for > three months).
• Operative limb neuropathy.