Normal Cannulated Screw: The most prevalent type, characterized by a fully threaded body and a tapered head. Its design makes it versatile and widely applicable in many orthopedic scenarios for fracture fixation.

Herbert Screw: This screw features a partially threaded body and a flat head. It is particularly useful in areas where there’s limited bone, like the small bones of the hand and foot. The partial threading allows for different fixation mechanics compared to fully threaded screws, adapting well to these delicate bone structures.

Special Herbert Screw: Similar to the Herbert screw but with an added feature – a washer that’s integrated into the head of the screw. This built-in washer provides additional load distribution benefits right at the screw’s attachment point to the bone.

Headless Screw: As the name implies, it lacks a visible head. It finds its application in areas where it’s crucial for the screw to be flush with the bone, such as around joints. This design minimizes any interference with joint movement or soft tissue around the joint area.

Applications in Orthopedic Procedures

Fracture Fixation: One of the primary uses of cannulated screw systems is in stabilizing fractures. Whether it’s a simple or complex fracture, these screws can be inserted precisely to hold the broken bone segments in place, facilitating proper healing.

Osteotomies: In surgical procedures where a bone is intentionally cut (osteotomies), these systems are employed to stabilize the bone after the cut has been made. They ensure that the bone remains in the desired position during the healing phase.

Arthrodesis: When two bones need to be fused together surgically (arthrodesis), cannulated screw systems come into play. They provide the necessary stability to keep the bones in the correct alignment throughout the fusion process, helping to achieve a successful arthrodesis.