What is the primary purpose of a triangular bandage for the elbow or knee?

The primary purpose of a triangular bandage for the elbow or knee is to hold a dressing in place on the injured area. This type of bandage is versatile and can effectively secure a dressing, ensuring that it stays in place while protecting the wound from external elements. By maintaining the integrity of the dressing, the bandage helps prevent contamination and promotes healing.

Additionally, while immobilization and reduction of swelling are important aspects of managing injuries, the specific function of a triangular bandage in this context focuses on securing dressings. Thus, its design and application are particularly suited for holding materials in position, rather than acting as a splint or providing warmth.