Lag Screw Technique (Small and Large Fragment)

Description

This instructional video provides a comprehensive demonstration on how to apply a Lag Screw, an essential technique used in orthopedics for achieving primary bone healing. The presenter begins by explaining the fundamental principles and applications of Lag Screws, distinguishing between partial threaded screws and fully threaded cortical screws.



The video outlines the necessary tools and equipment needed for both small and large fragments, emphasizing the importance of correct drill bit sizes for the gliding and pilot holes. Specific measurements are given for both types of fragments: a 3.5 mm drill bit for small fragment gliding holes and a 4.5 mm drill bit for large fragment gliding holes, with corresponding pilot hole sizes of 2.5 mm and 3.2 mm, respectively.



Key principles such as ensuring the screw is perpendicular to the fracture line and creating a countersunk area for a flush screw placement are also discussed. The video details each step of the process, including the use of depth gauges and taps to ensure proper sizing before finally inserting the lag screw using a hexagonal screwdriver. The ultimate objective highlighted is to create compression at the fracture site, enhancing healing and stability. This tutorial serves as an educational resource for medical professionals looking to enhance their skills in orthopedic procedures.

Specialties