A Randomised Controlled Trial Comparing Single Shot Adductor Canal Block With Local Infiltration Analgesia for Postoperative Analgesia After Total Knee Arthroplasty

Inclusion Criteria: * Patients scheduled for primary TKA under single shot spinal anaesthesia, between ages 45-85 years old, American Society of Anesthesiologists (ASA) physical status 1 to 3 and BMI 18-35 kg/m2 Exclusion Criteria: * Patients unable to give consent, inability to communicate/ cooperate, patients with regular consumption of strong opioids (morphine, oxycodone) or steroids, allergy to local anaesthetics or any drugs included in the study, patients with lower limb surgery in the preceding year, patients with pre-existing neurological deficits and patients who have contraindications for spinal anaesthesia.