Jacobs chuck and key are primarily used for which purpose?

The Jacobs chuck and key are specialized instruments primarily used for introducing intramedullary (IM) pins during orthopedic procedures. This instrument facilitates the secure handling and deployment of pins within the medullary cavity of bones, which is essential in stabilizing fractures or in supporting weak areas of bone structure. The design of the Jacobs chuck allows it to grip the pin firmly, ensuring that it can be accurately placed into the bone with precision, minimizing the risk of slippage or misalignment.

While the other options mentioned involve various aspects of orthopedic practice, they do not specifically highlight the primary function of the Jacobs chuck and key. The primary role of these tools is to efficiently introduce IM pins, making them crucial in many bone stabilization surgeries.