Lower Limb · NEET PG Preparation Anatomy
A 50-year-old man undergoes radical lymph node dissection of the femoral triangle for malignant melanoma of the lower limb. Postoperatively, he exper…
Practice question from Lower Limb (NEET PG Preparation Anatomy), with the correct answer and a step-by-step solution.
medium · MCQ · Q-82686F
A 50-year-old man undergoes radical lymph node dissection of the femoral triangle for malignant melanoma of the lower limb. Postoperatively, he experiences marked weakness in extending the leg at the knee joint and complete loss of cutaneous sensation over the anterior thigh and medial side of the leg down to the foot. Which nerve was most likely injured?
- A.Obturator nerve
- B.Femoral nerveCorrect answer
- C.Superior gluteal nerve
- D.Common fibular nerve
Solution
The femoral nerve runs through the femoral triangle and supplies the anterior compartment of the thigh (quadriceps femoris, responsible for knee extension) and gives off cutaneous branches including the saphenous nerve supplying the medial leg and foot.
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