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Tandir Orthopedic Implants
Tandir Orthopedic Implants
The surgical technique of cannulated headless compression screws follows a precise orthopedic protocol:
Make a small incision (1-3 cm) near the fracture site, avoiding nerves and vessels. Gently separate soft tissues to fully expose the fracture end.
Restore the bone to its anatomical position using manual traction and rotation, monitored under C-arm fluoroscopy for accuracy.
Determine the entry point and insert the guide wire along the designed path until it reaches the appropriate position, perpendicular to the fracture plane.
Use a dedicated measuring device over the guide wire. Select a screw 2-4 mm shorter than the measured length for optimal countersinking.
Drill along the guide wire using a cannulated bit with irrigation. Mount the screw onto the sleeve and advance until the head is flush with the bone.
Achieve fracture compression via the headless design. Irrigate the wound and perform layered suturing of deep tissues and skin.
A Cannulated Headless Compression Screw (CHCS) is a specialized orthopedic implant used for internal fixation, particularly for scaphoid fractures and long bone injuries. Its unique headless design allows the screw to be countersunk below the articular surface, minimizing soft tissue irritation.
These screws feature a hollow center (cannulated) to allow precise placement over a guide wire. The varying thread pitch between the leading and trailing edges generates powerful compression across the fracture site as the screw is tightened, promoting faster primary bone healing.
