Orthopaedic Screws (Bone Screws)

Screw is a cylinder with spiral threads running on its outer surface. It converts torsional forces into compression. The primary functional objective in the design of a screw is to dissipate and distribute the mechanical load. Thread design should maximise initial contact, enhance surface area, dissipate and distribute stresses at the screw-bone interface and increase the pull out strength. Screws can be used for attachment of implants to bone, bone to bone fixation or for soft tissue fixation or anchorage. In conventional plates they act by increasing the friction between the plate and the bone. Newer locking plates do not depend on the friction between the plate-bone interface; it acts as an internal fixator by using locking of screw head into the reciprocal threads of the plate to form a fixed angle construct.

To continue please click the following link


Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.