Autonomic Denervation Dermatitis: A Relatively Undocumented 'ADD'itional Complication of Total Knee Replacements and Other Surgeries Around the Knee.

ADD is a relatively uncommonly reported complication of TKRs, which can reduce patient satisfaction and increase surgeon apprehension. Although all cases of nerve damage do not manifest as cutaneous lesions, steps to minimise the damage to the nerve intra operatively should be taken. The diagnosis requires a high index of suspicion, and should not be dispelled as a simple allergic reaction without adequate investigations. Patients should be counselled to alleviate unnecessary fear and apprehensions.