Which value represents the maximum torque for inserting central and peripheral screws?

Which value represents the maximum torque for inserting central and peripheral screws?

• A. 6 Nm
• B. 5 Nm
• C. 4 Nm
• D. 3 Nm

Answer: (B)

The maximum torque for inserting central and peripheral screws is 5 Nm. This value is chosen because it provides enough preload to secure the screw and obtain stable fixation without risking damage from overtightening. Exceeding this limit can strip bone threads or crack bone, while tightening significantly less may not seat the screw adequately and could allow micromotion or loosening of the construct. Hence, 5 Nm hits the balance between secure fixation and avoiding bone or implant damage.

The maximum torque for inserting central and peripheral screws is 5 Nm. This value is chosen because it provides enough preload to secure the screw and obtain stable fixation without risking damage from overtightening. Exceeding this limit can strip bone threads or crack bone, while tightening significantly less may not seat the screw adequately and could allow micromotion or loosening of the construct. Hence, 5 Nm hits the balance between secure fixation and avoiding bone or implant damage.