Question

You are assisting the pediatric orthopedic surgeon in the application of a Spica cast. You take special care to diminish pressure to the fibular head because valgus molding here can cause:

A Obturator nerve damage
B Peroneal nerve palsy
C Mid diaphyseal femoral fractures
D Pelvic or hip injury

Answer 1

Pressure on the fibular head during the application of a Spica cast can cause peroneal nerve palsy.

Step-by-step explanation:

When applying a Spica cast, it is important to avoid pressure on the fibular head because valgus molding in this area can cause peroneal nerve palsy. Peroneal nerve palsy is a condition that affects the peroneal nerve, which supplies sensation and movement to the lower leg and foot. Pressure on the fibular head can compress the peroneal nerve and lead to symptoms such as weakness, numbness, and difficulty moving the foot and toes.