When inserting the central and peripheral screws, you must not exceed how many Nm of torque?

When inserting the central and peripheral screws, you must not exceed how many Nm of torque?

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

Answer: (B)

Controlling the insertion torque of central and peripheral screws is about securing fixation without causing damage to bone or hardware. A safe maximum is typically 5 Newton-meters. This level provides enough clamping force for stable fixation while minimizing the risk of stripping screw threads, microfractures in the surrounding bone, or deformation of the plate hole and screw head. Going beyond this limit increases the chance of compromised purchase and loosening under load. Use a torque-limiting instrument and stop when you reach that threshold, then verify seating and alignment, following the device’s guidelines.

Controlling the insertion torque of central and peripheral screws is about securing fixation without causing damage to bone or hardware. A safe maximum is typically 5 Newton-meters. This level provides enough clamping force for stable fixation while minimizing the risk of stripping screw threads, microfractures in the surrounding bone, or deformation of the plate hole and screw head. Going beyond this limit increases the chance of compromised purchase and loosening under load. Use a torque-limiting instrument and stop when you reach that threshold, then verify seating and alignment, following the device’s guidelines.