- • All the standard contraindications for spinal anaesthesia which includes local site infection, spinal deformity, coagulopathy (platelet count<80,000, INR>1.5) patients on anticoagulant medication continued upto the day of the surgery as per the third edition of the American Society of Regional Anesthesia and Pain Medicine Evidence-Based Guidelines (Regional Anesthesia in the Patient Receiving Antithrombotic or Thrombolytic Therapy)