Plastic Surgery & Hernia · NEET PG Preparation Surgery
A 60-year-old man presents with a strangulated umbilical hernia. During emergency repair, the hernia defect is closed. Which of the following terms d…
Practice question from Plastic Surgery & Hernia (NEET PG Preparation Surgery), with the correct answer and a step-by-step solution.
hard · MCQ · Q-53A292
A 60-year-old man presents with a strangulated umbilical hernia. During emergency repair, the hernia defect is closed. Which of the following terms describes the ratio of the length of a skin flap to its width, beyond which the risk of tip necrosis significantly increases in random pattern flaps?
- A.1:1
- B.2:1Correct answer
- C.4:1
- D.10:1
Solution
In random-pattern skin flaps, the safe length-to-width ratio is generally considered to be up to 1:1 on the trunk and extremities, and up to 2:1 on the face and neck due to the rich collateral blood supply in the facial region. Exceeding 2:1 on the body significantly increases the risk of distal necrosis.
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