Types of Orthopaedic Bone Screws Used in Surgeries

by admin


Posted on February 14, 2019 at 1:30 PM



Since 1912, Orthopaedic Bone Screws have been used in mechanical procedures to repair orthopaedic problems. The primary use of a screw is to provide compression in the bone to promote repair of the injury. How it works every time we move, the force is distributed evenly by the screws along the surface of the broken bone, this causes compression and keeps the bone in place, promoting repair. Screws are also attachments for implants or fixations. With the growing developments in the medical field, the demand of bone screws is increasing as is its applications, therefore Orthopaedic Bone Screw suppliers work towards giving the best screws for fast healing and repair.

An Orthopaedic Bone Screw has a head, length, diameter, pitch and tip. And there are different kinds of orthopaedic screws depending on their applications and materials used to make them. Given below are a few applications of Orthopaedic Bone Screws depending on the area they are used in.

Cortical bones:
They form 80 percent of the body mass and they are the protective outer bones that encloses the inner cavity. The screws used for cortical bones are called cortex screws and they have a smaller pitch when compared to cancellous crews. Also, the ratio of inner diameter to outer diameter is less. The screw is fully threaded.

Cancellous bones:
Cancellous bones are softer than cortex bones and are called spongy bones as well. They are what are present at the tip if bones like the ribs or pelvic bone. The screws for cancellous bones are called cancellous screws. These cancellous screws have a large pitch and are longer than cortex screws. The screw is highly or partially threaded.

Depending on the material, the screws are of the following types:

Stainless steel:
Stainless steel screws are the most common ones

Titanium:
Titanium screws are a perfect choice as they are less prone to infection when compared to stainless steel. Thy are used for mandibular fixations

Bio-absorbable:
Bio-absorbable screws are made up of polylactic acid, polyglycolic acid and poly-L-lactic acid, they need not be removed as the body absorbs them, but that also means they sometimes set off foreign body reactions.

There also types of screws depending on the type of head, tip, or if they are cannulated screws which are usually used to mend long bones.

With the help of ortho bone screw suppliers, medical professionals and surgeons are able to help patients who require a surgery to repair damage from an injury and lead a normal life.