What is referred to as separating tissue without causing injury to the surrounding structures?

Blunt dissection is the technique described as separating tissue without causing injury to the surrounding structures. This method involves using instruments or fingers to gently separate tissues along natural planes, making it ideal for minimizing damage to adjacent areas. It is particularly useful in surgical procedures where preserving the integrity of surrounding tissues is crucial for healing and function.

In contrast, sharp dissection typically involves cutting tissue with a scalpel or other sharp instruments and can cause more trauma to surrounding structures. Electrocautery involves using heat to cut or coagulate tissue, which can also lead to collateral damage. Drainage refers to the removal of accumulated fluid or pus and is not related to the separation of tissues themselves. Thus, the characteristics of blunt dissection align perfectly with the question’s focus on minimizing harm while separating tissues.