Question

For a fracture of the proximal forearm, the cast position is:

• A. Pronated flexion
• B. Neutral position
• C. Supinated position
• D. Position does not matter

Hint:

Match the cast to the pull of biceps and supinator on the proximal fragment.

Answer 1

The Correct Option is C

Step 1: When immobilizing a forearm fracture, the forearm is positioned so that the pull of the muscles attached above and below the fracture line keeps the fragments aligned rather than rotating them apart.

Step 2: For a proximal third forearm fracture, the supinator and biceps act on the proximal fragment and tend to supinate it. To match the distal fragment to it, the forearm is immobilized in supination.

Step 3: By contrast, a middle third fracture is held in mid (neutral) pronation and a distal third fracture in pronation. Therefore the proximal forearm fracture cast is applied in the supinated position.