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3.5MM Cortical Screw

  • 5100-41

  • CZMEDITECH

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Product Description

3.5MM Cortical Screw specifications

NameREFLength
3.5mm Cortical Screw (Stardrive)5100-41013.5*12
5100-41023.5*14
5100-41033.5*16
5100-41043.5*18
5100-41053.5*20
5100-41063.5*22
5100-41073.5*24
5100-41083.5*26
5100-41093.5*28
5100-41103.5*30
5100-41113.5*32
5100-41123.5*34
5100-41133.5*36
5100-41143.5*38
5100-41153.5*40
5100-41163.5*42
5100-41173.5*44
5100-41183.5*46
5100-41193.5*48
5100-41203.5*50
5100-41213.5*55
5100-41223.5*60


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Understanding Cortical Screws: Types, Indications, and Precautions

If you've ever had surgery or needed to repair a bone, you've likely heard of screws. Screws are used to stabilize and align broken bones and to fuse spinal vertebrae. A type of screw commonly used in orthopedic surgery is the cortical screw. In this article, we will discuss what cortical screws are, how they work, and their uses in surgery.

1. What are Cortical Screws?

Cortical screws are specialized bone screws that are designed to be inserted into the hard outer layer of bone called the cortical bone. The cortical bone is the dense outer layer of bone that provides the majority of the bone's strength and support. Cortical screws are used to fixate bones and provide stability during the healing process.

2. Types of Cortical Screws

There are several different types of cortical screws, including cancellous screws, locking screws, and non-locking screws. Cancellous screws are designed to be used in the softer, spongy bone found in the interior of bones. Locking screws are used in situations where additional stability is needed, such as in osteoporotic bones. Non-locking screws are used in situations where the bone is strong and the screw can be inserted directly into the bone.

3. Indications for Cortical Screws

Cortical screws are used in a variety of surgical procedures, including spinal surgery, fracture fixation, and joint arthroplasty. They are often used to provide stabilization to bones that have been fractured or broken. Cortical screws may also be used in the treatment of spinal fractures, spinal deformities, and degenerative spinal conditions.

4. Precautions when using Cortical Screws

There are several precautions that must be taken when using cortical screws. These include ensuring that the screws are inserted at the correct angle, avoiding overtightening the screws, and ensuring that the screws are not placed too close to vital structures such as nerves or blood vessels. It is important to use appropriate imaging techniques such as X-rays, CT scans, or MRI scans to ensure proper placement of the screws.

5. Advantages and Disadvantages of Cortical Screws

One advantage of cortical screws is that they provide excellent stability and fixation of bones. They are also relatively easy to insert and remove. However, one disadvantage of cortical screws is that they may cause stress risers, which can lead to bone fractures or other complications.

6. Cortical Screws in Spinal Surgery

Cortical screws are commonly used in spinal surgery to stabilize and align the spine. They may be used in the treatment of spinal fractures, degenerative spinal conditions, and spinal deformities. In spinal surgery, cortical screws are often used in conjunction with rods or plates to provide additional stability and support to the spine.

7. Cortical Screws in Fracture Fixation

Cortical screws are also commonly used in the fixation of fractures. They may be used to stabilize bones that have been broken or fractured, and can help to promote healing and reduce the risk of complications.

8. The Surgical Procedure for Cortical Screw Placement

The surgical procedure for cortical screw placement will depend on the location and severity of the injury or condition being treated. In general, the procedure involves making an incision at the site of the injury or condition and using specialized instruments to prepare the bone for screw placement. The screw is then inserted into the bone, and its position is confirmed using imaging techniques. Additional screws may be inserted as needed to provide additional stability.

9. Postoperative Care and Rehabilitation

After surgery, it is important to follow the postoperative care instructions provided by your surgeon. This may include wearing a brace or cast to immobilize the affected area, taking pain medication as prescribed, and attending physical therapy to help regain strength and mobility. Recovery times will vary depending on the severity of the injury or condition being treated.

10. Complications of Cortical Screw Placement

As with any surgical procedure, there are risks associated with cortical screw placement. These may include infection, bleeding, nerve damage, and complications related to the use of anesthesia. In addition, there is a risk of screw failure or loosening, which can lead to additional complications and may require revision surgery.

11. Conclusion

Cortical screws are a valuable tool in orthopedic surgery, providing stability and support to bones that have been fractured or broken. They are commonly used in spinal surgery, fracture fixation, and joint arthroplasty. However, precautions must be taken to ensure proper placement and to minimize the risk of complications.

12. FAQs

  1. Are cortical screws permanent? Cortical screws may be removed after the bone has healed, but they can also be left in place permanently.

  2. How long does it take to recover from cortical screw placement surgery? Recovery times will vary depending on the severity of the injury or condition being treated, but may take several weeks to several months.

  3. Can cortical screws be used in joint replacement surgery? Yes, cortical screws may be used in joint replacement surgery to provide additional stability and support.

  4. What are the most common complications of cortical screw placement? The most common complications of cortical screw placement include infection, bleeding, nerve damage, and screw failure or loosening.

  5. Is it possible for cortical screws to cause bone fractures? Yes, improper placement of cortical screws or stress risers caused by the screws may lead to bone fractures or other complications.


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