Which procedure is associated with the destruction of biliary stones using an external approach?

The procedure associated with the destruction of biliary stones using an external approach is extracorporeal shock wave lithotripsy. This technique employs high-energy shock waves generated outside the body, targeting the biliary stones. The shock waves traverse through the tissue and focus on the stones, breaking them into smaller fragments that can be more easily eliminated through the biliary system or the gastrointestinal tract. This non-invasive method is particularly advantageous as it minimizes the need for surgical intervention and can be performed on an outpatient basis.

In contrast, the other options do not align with the external approach or the specific treatment of biliary stones. Adhesion lysis typically involves surgical procedures to remove adhesions in the abdominal cavity. Excision is a general term that refers to the surgical removal of tissue or organs and does not specifically pertain to the non-invasive destruction of stones. Ablation generally refers to the removal or destruction of tissue, typically through more invasive means, and does not specifically target biliary stones using an external approach, making it distinct from the focused method of lithotripsy.