For a strangulated femoral hernia, which surgical incision is appropriate?

The appropriate surgical incision for a strangulated femoral hernia is McEvedy's incision. This incision is specifically designed to provide adequate access for the management of femoral hernias. It allows the surgeon to directly access the inguinal and femoral regions, facilitating the identification and reduction of hernias, as well as addressing any complications, such as strangulation.

A femoral hernia occurs when tissue protrudes through a weak spot in the femoral canal, and the McEvedy's incision provides the best exposure to this area, allowing for effective intervention. The incision is made just below the inguinal ligament, allowing for better access than other incisions that may be less suited for this specific condition.

Other incisions, while useful in different contexts, do not provide the same level of access for a femoral hernia. For instance, the Lanz incision is typically used for appendectomies and provides access to the lower abdomen rather than specifically targeting hernias. Kocher's incision is often used for access to the gallbladder and factors into upper abdominal procedures. The rooftop incision, although versatile for various abdominal procedures, does not lend itself specifically to femoral hernias as effectively as the McEvedy's incision does.