Cortical screws are defined by their smaller pitch and greater number of threads. Their thread diameter to core diameter ratio is less, and they are fully threaded. As their name suggests, cortical screws are used in cortical bone; also known as compact bone, this is the dense outer surface of bone that forms a protective layer around the internal cavity. It makes up nearly 80% of skeletal mass and is extremely important to body strucure and weight bearing (it is highly resistant to bending and torsion).
|REF(stainless steel）||REF(titanium alloy）|
|2.0mm Cortical screw||2.0*6mm||S4100-8101||T4100-8101|
|Name||specifications||REF(stainless steel）||REF(titanium alloy）|
|3.5mm Cortical screw||3.5*10mm||S4100-8317||T4100-8317|
|Name||specifications||REF(stainless steel）||REF(titanium alloy）|
4.5mm Cortical screw
If you are looking for a type of screw that offers superior fixation and stability in orthopedic surgeries, then cortical screws are the right choice for you. In this article, we will explore everything you need to know about cortical screws, including their definition, types, applications, advantages, and disadvantages.
Cortical screws are an essential component in the field of orthopedic surgery. These screws are used to provide a stable fixation of the cortical bone, which is the dense outer layer of bone that provides the primary support for the body. Cortical screws are used in a variety of procedures, including spinal fusions, fracture repair, and joint arthroplasty.
Cortical screws are orthopedic devices used to provide rigid fixation of bone fragments. They are specially designed to be threaded through the dense outer layer of bone, known as the cortex, and provide stability to the bone structure. Cortical screws are made from a variety of materials, including titanium, stainless steel, and cobalt-chromium alloys. They come in various lengths and diameters to accommodate the different bone sizes and applications.
There are two main types of cortical screws: standard cortical screws and locking cortical screws.
The standard cortical screw is a fully threaded screw with a tapered head that is designed to compress the bone fragments together. This type of screw is used in procedures where compression is needed to stabilize the bone fragments.
The locking cortical screw is a type of screw that has a threaded shank with a head that can pivot. The screw is designed to lock into the plate that it is being inserted into, which provides added stability. Locking cortical screws are commonly used in procedures where bone fragments are smaller, and there is a higher risk of screw pull-out.
Cortical screws are used in a variety of orthopedic procedures, including spinal fusions, fracture repair, and joint arthroplasty. They are used to provide rigid fixation of bone fragments, which helps promote bone healing and reduces the risk of complications.
Cortical screws offer several advantages over other types of screws, including:
Superior fixation: Cortical screws provide superior fixation compared to other types of screws, which helps reduce the risk of complications and promote bone healing.
Increased stability: The design of cortical screws provides increased stability, which reduces the risk of screw loosening or pull-out.
Reduced risk of infection: Cortical screws are made from materials that are less likely to cause infections, reducing the risk of postoperative complications.
Although cortical screws offer several advantages, there are some disadvantages to using them. These include:
Increased cost: Cortical screws are more expensive than other types of screws, which can be a concern for patients and healthcare providers.
Increased surgical time: The insertion of cortical screws can be more time-consuming than other types of screws, which can increase the length of the surgical procedure.
Risk of complications: While the risk of complications with cortical screws is relatively low, there is still a risk of complications, including screw loosening or pull-out, infection, and nerve or vascular injury.
Inserting cortical screws requires a specific surgical technique to ensure proper placement and fixation. The surgical technique will vary depending on the type of cortical screw being used and the specific procedure being performed. In general, the surgeon will make an incision over the area where the screw will be inserted and will use imaging techniques, such as X-rays, to guide the placement of the screw. Once the screw is in place, the surgeon will compress the bone fragments together to ensure stability.
While the risk of complications with cortical screws is relatively low, there is still a risk of complications that patients and healthcare providers should be aware of. These include:
Screw loosening or pull-out: If the screw is not properly placed or secured, it can loosen or pull out of the bone, reducing the stability of the fixation.
Infection: There is a risk of infection with any surgical procedure, including the insertion of cortical screws. The risk of infection can be reduced by using sterile techniques and proper wound care.
Nerve or vascular injury: The placement of cortical screws can result in nerve or vascular injury if the screw is not properly placed or if the surgeon is not careful during the procedure.
Cortical screws are an essential component in the field of orthopedic surgery. These screws provide superior fixation and stability compared to other types of screws and are used in a variety of procedures, including spinal fusions, fracture repair, and joint arthroplasty. While there are some disadvantages to using cortical screws, the benefits they provide outweigh the risks. Proper surgical technique and postoperative care can help reduce the risk of complications and promote bone healing.
Are cortical screws the best choice for all orthopedic procedures?
No, cortical screws are not the best choice for all orthopedic procedures. The choice of screw will depend on the specific procedure being performed and the patient's individual needs.
How long does it take to insert a cortical screw?
The time it takes to insert a cortical screw will vary depending on the specific procedure being performed and the type of screw being used. In general, the insertion of cortical screws can take between 30 minutes to several hours.
Are cortical screws safe?
Yes, cortical screws are generally safe when used by experienced surgeons and with proper surgical technique and postoperative care.
Can cortical screws be removed?
Yes, cortical screws can be removed if necessary, although this will require an additional surgical procedure.
How long does it take for bone to heal after the insertion of cortical screws?
The time it takes for bone to heal after the insertion of cortical screws will vary depending on the specific procedure being performed and the patient's individual needs. In general, it can take several weeks to several months for bone to fully heal after the insertion of cortical screws.