Prefabricated Ulnar Gutter Splints & Boxer's Fracture Braces

Clinical Guide: When to Use an Ulnar Gutter Splint

An ulnar gutter splint is the orthopedic standard for injuries on the "pinky side" of the hand. Unlike a general wrist brace, the gutter design extends up the side of the hand to prevent the ring and small fingers from moving, which is critical for bone knitting.

The "Intrinsic Plus" Positioning

For optimal healing of a metacarpal fracture, the hand must be placed in a specific "intrinsic plus" or "functional" position. Our prefabricated splints are pre-contoured to maintain:

1. Wrist Extension: Roughly 20° to 30° to maintain grip strength.

2. MCP Flexion (Knuckles): Flexed at 60° to 90° to prevent ligament shortening.

3. IP Extension (Fingers): Fingers kept relatively straight or in slight flexion to avoid joint contractures.

Benefits of Prefabricated vs. Plaster Splints

• Swelling Management: Injuries often swell significantly in the first 72 hours. A velcro ulnar gutter splint can be loosened to accommodate swelling, whereas a plaster cast may become dangerously tight.

• Skin Health: Our braces feature breathable liners. We recommend placing a small piece of gauze between the 4th and 5th fingers inside the splint to prevent skin irritation or maceration.

• Durability: Unlike plaster, which degrades if it gets wet, our gutter splints are made of durable polymers and fabrics that maintain their shape throughout the 4-6 week recovery period.