Screw and Types used in Bone Fixation: Screws used in the Fixation of the small fracture and reconnection of the fractured bone using plates. The main purpose of the screws fixes in orthopedics, dental and maxillofacial surgery, etc. Read more about lag screws, cannulated screw and other types
In some of the Neurosurgery Screws used for the fixation of the Cranial bone after the craniotomy procedures and cranioplasty.
Screws type made up of special type stainless steel, Titanium, etc.
Main used in pre-drilled and tapped holes
Used to fix the plates and bones
Used to fix the plate correctly aligned fractured segments of bone.
Different Screw Types
Cortical screws
Thread diameter is shorter when compared to cancellous screw. continuous threads can be seen the same as cancellous.
Spherical in shape with threaded fully.
The blunt tip with uniform threading
Before application of Cortical screw tapping needed
Pitch
plating Radial bone, Ulnar bone, humeral bone, Tibial bone, Femoral shaft fracture
Cancellous screw
Thread diameter longer when compared to cortical screw. No need of Tapping for cancellous types of screw
used in fixation of
Proximal tibia and distal tibia
Distal femur
Proximal Humerus
Calcaneal bone
Malleolar screws
Used in Medial malleolus of the ankle
Herbert screws
Used rarely in the screw fix like scaphoid fracture and radial head fracture
It’s embedded into the bone and not removed after fixation
Lag screws
Interfragmentary compression, both fully threaded and semi threaded screws can act as the lag effects
By design, the partially threaded lag screw can acts as lag screw as long as the threaded part does not cross the fracture line. The lag screw applied perpendicular to the fracture line results in inter-fragmentary compression
Cannulated screw
Either cortical or cancellous type
The hollow uniform hole helps in drilling and insertion of screw using Guidewire
Accurate screw placement and less soft tissue dissection
Used in Malleolar screw fixation, Distal humerus fracture, Tibial condylar fracture, and a femoral neck fracture
Read More Screw and Types used in Bone Fixation
Dynamic hip screw
My wife had foot reconstruction surgery October 8, 2020, It is now May 4, 2021 , she went the doctor today and had x rays. She still has a lot of pain she was told that a screw was Bent. How can that happen with screws made out of stainless steel or titanium?
Damage of implants is one of the postoperative complication of the surgery. The complication can happen due to improper positioning of the surgical site. Titanium or Stainless steel, Problem is reconstructed bone should hold in weight of patients. Follow your doctors instruction and Avoid contraindicated doing as instructed by the Physician.
Hope your Wife will recover soon!