Cortical Screw

Description

Cortical Screws: Anchoring Stability in Orthopedic Procedures

Cortical Screws are a fundamental implant category in orthopedic surgery, playing a crucial role in securing bone fragments or other fixation devices within the cortical bone, the dense outer layer of most bones. These versatile screws provide strong purchase within the bone for optimal stability in various surgical procedures.

Functions of Cortical Screws:

• Fracture Fixation: Cortical screws are commonly used to secure bone fragments during the fixation of fractures. They can be used in conjunction with plates, nails, or other implants to achieve strong and stable healing.
• Bone Graft Fixation: These screws can be used to secure bone grafts in place, promoting their integration with the surrounding bone during procedures like bone fusions or reconstructions.
• Implant Fixation: Cortical screws can also be used to secure other orthopedic implants within the bone, such as joint replacement components or prosthetic devices.

Variety of Cortical Screw Designs:

Cortical screws come in a wide range of designs to suit different surgical applications:

• Screw Size and Thread Design: Screws come in various sizes (diameter and length) to accommodate different bone sizes and achieve optimal purchase within the specific cortical bone area. Thread patterns can also vary to optimize grip within different bone densities.
• Head Styles: Cortical screws have different head styles, such as low-profile or headless options, depending on the need for minimizing implant prominence under the skin or allowing for flush placement with plates.

Applications in Orthopedic Surgery:

Cortical screws are used in a wide range of orthopedic procedures, including:

• Fixation of various types of fractures (e.g., long bone fractures, hand and foot fractures)
• Bone graft fixation in procedures like spinal fusions or joint reconstructions
• Securing implants like joint replacement components or prosthetic devices
• Arthroscopic surgery (minimally invasive) for specific procedures requiring cortical bone fixation

Important Considerations:

Cortical screw selection depends on the specific surgical procedure and bone anatomy. Consulting with a qualified orthopedic surgeon is crucial to determine the most appropriate screw type and size for your individual case. Here are some additional factors to consider:

• Type and location of the surgery
• Size and quality of the cortical bone
• Chosen method of fixation
• Patient’s overall health and medical history

Additional Notes:

• Cortical screws are typically made from biocompatible stainless steel or titanium alloys.
• The size and design of the cortical screw will depend on the specific surgical procedure and the bone anatomy of the patient.
• The placement of cortical screws often involves fluoroscopy (live X-ray) to ensure accurate positioning within the bone.