Precise Torque is Clinically Important
Cold welding which leads to screw breakage and stripping can make screw removal challenging.
Screw loosening requires revision surgery, which can effect outcomes.
“The mechanical stability of locked screws is significantly compromised by loose insertion, off-axis insertion, or severe distortion of the locking mechanism.”
-Dr. William Ricci
Past President Orthopaedic Trauma Association, Chief of Orthopaedic Trauma at HSS/NYP
"All screws inserted with thread-damaging torque and single cortex engaging screws inserted to high torque tightening moments showed diminished holding strength. This loss of strength amounted to 40%-50% less than screws inserted with less torque."
-Dr. James Jastifer
Clinical Professor,Department of Orthopaedic Surgery at WMU Homer Stryker