Which of the following is a contraindication to using a traction splint?

• A. Pelvic fracture or instability
• B. Isolated midshaft femur fracture
• C. Knee instability
• D. Ankle fracture

Answer: (A)

The key idea here is that traction splints are used to realign and immobilize a midshaft femur fracture to reduce pain and prevent further injury. The main contraindication is a pelvic fracture or pelvic instability because applying traction through the leg can worsen pelvic injuries, increase bleeding, and potentially disrupt the pelvic ring or nearby organs. When a pelvic injury is suspected, other immobilization methods (like a pelvic binder and a long board with appropriate leg splints) are used instead of traction.

The other scenarios aren’t contraindications. An isolated midshaft femur fracture is precisely what the traction splint targets, so it’s an indication rather than a contraindication. Knee instability isn’t a universal contraindication, though you’d reassess neurovascular status; and an ankle fracture doesn’t negate the use of a traction splint since the traction is applied to the femur, not the ankle.