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What is a Cannulated Headless Compression Screw?
The Headless Compression Screw is a specialized orthopedic implant used for scaphoid fracture fixation. It is designed to generate significant compression across the fracture site while being countersunk below the articular surface to minimize irritation.
Make a 1-3 cm incision near the fracture site, avoiding critical nerves and vessels. Gently separate soft tissues to expose the fracture end.
Restore the bone to its anatomical position using manual traction. Use C-arm fluoroscopy to monitor accuracy.
Insert a guide wire along the designed path, ensuring it is perpendicular to the fracture plane under imaging guidance.
Determine screw length using a dedicated measuring device. Select a cannulated drill bit and drill over the guide wire while cooling with irrigation.
Mount the screw onto the compression sleeve and advance it over the guide wire. Tighten until the head is flush with the bone and compression is achieved.
Irrigate the wound, suture in layers (fascia, then skin), and apply appropriate dressing or splints.
