Wide-Awake Local Anesthesia No Tourniquet (WALANT) With Versus Without Hyaluronidase for Hand Surgery

in group A hyaluronidase is expected to shorten the onset of action and prolong the duration of action of lidocaine 1% mixture than in group B where lidocaine 1% mixture only will be given

lidocaine 1 % mixture includes; A mixture of ( epinephrine 1:200,000 and lidocaine 1% ) buffered by 1 ml of sodium bicarbonate 8.4% for every 10 ml of the local anesthetic mixture.