Lidocaine has been used along with adrenaline in tumescent anesthesia for a variety of procedures. This has been quite popular especially in wide awake surgery of the hand with no tourniquet. However, the appropriate lidocaine concentration is yet to be established. This randomized control trial will study the minimum effective lidocaine concentration in hand surgery using the tumescent technique.

Inclusion Criteria:

1. Patients aged 16 to 60 years of either gender
2. Patients with post burn/post traumatic contractures involving fingers & palm
3. Patients with nerve injury or flexor/extensor tendons injury distal to mid forearm.

Exclusion Criteria:

1. Patients with history of ischemic heart disease, chronic liver disease (ALT/AST 40 IU/L), renal disease (creatinine 13mg/dl), bleeding disorder, peripheral arterial disease & peripheral neuro3pathy .
2. Surgical site infection .
3. History of allergic hypersensitivity to epinephrine or lidocaine.