Continuous Adductor Canal Block for Total Knee Arthroplasty Analgesia

Prospective Comparison Between Continuous Femoral Nerve Block and the Association of Adductor Canal Block and Sciatic Nerve Block in Total Knee Arthroplasty.

The purpose of the study is to determine whether the association of sciatic nerve block to continuous adductor canal block is effective in the treatment of total knee arthroplasty post operative pain .

Inclusion Criteria:

• Elective unilateral TKA,
• Planned continuous spinal anesthesia ,
• Ability to follow study protocol,
• American Society of Anesthesiologists class 1 to 3.

Exclusion Criteria:

• Contraindication for neuraxial anesthetic,
• Chronic opioid use (defined as daily or almost daily use of opioids for >3 months),
• Hypersensitivity and/or allergies to any of the study medications,
• Intraoperative use of volatile anesthetics,
• Preexisting neuropathy on the operative limb,
• Contraindications to a femoral, adductor canal or Tibial nerve block.