1 / 5
Grai Orthopedic Implants
Grai Orthopedic Implants
What is a Cannulated Headless Compression Screw?
The Headless Compression Screw is a specialized cannulated screw used primarily for scaphoid fracture fixation. Its unique design allows the screw to generate significant compression across the fracture site before being fully countersunk below the articular surface, ensuring minimal interference with joint movement.
Cannulated Headless Compression Screws (CHCS) represent a major advancement in orthopedic surgery. They provide stable fixation for bone fractures while significantly reducing the risk of damage to surrounding soft tissues.
Incision and Exposure: A small incision (1-3 cm) is made near the fracture site. Soft tissues are gently separated to fully expose the bone without damaging nerves or vessels.
Fracture Reduction: The fracture is restored to its anatomical position using manual traction and monitored continuously under C-arm fluoroscopy.
Guide Wire Insertion: A guide wire is inserted along the designed path under fluoroscopic guidance, acting as a track for the screw.
Length Determination: Special measuring tools are used over the guide wire to determine the precise screw length needed.
Drilling and Insertion: A cannulated drill bit creates the path, followed by the insertion of the headless screw. The trailing threads are fully buried to ensure compression.
Closure: The wound is irrigated with saline and sutured in layers to ensure proper healing and minimal scarring.
