WALANT surgery of the hand: state of the art.

Abstract

Wide-awake local anesthesia no tourniquet is named the WALANT technique. WALANT has had a major positive impact on cost, convenience, ecology, patient satisfaction, access to surgical care, and outcomes in hand surgery in the last 20 years. Safe and efficient application of the technique is based on two principles. The first principle is the tumescent injection of a large volume low concentration 0.25-1% lidocaine, with 1:100 000-1:400 000 epinephrine. The second principle of WALANT is that the proper injection should be almost painless, with the patient only feeling the first needle poke of a tiny 30G needle. This wide awake patient approach reduces pain, neuropraxia, and systemic side effects of sedation with preservation of motor control, thereby aiding balanced reconstruction in hand surgery.