Abstract
The screw torque is applied at the screw head to fi x the plate and the bone. It generates the compress ive force between the plate and the bone to stabilize t hem. The interfragmentary strain is the main factor for healing the bone fractured. The screw torque level affects the interfragmentary strain and the stabili ty of the fixation between the plates an the bone. The interf ragmentary modulus is the new factor of the plate f ixation stability and it is affected by the torque level. T his research is proposed to study the effect of the screw torque level on the interfragmentary strain and the interfragmentary modulus. The interfragmentary str ain and the interfragmentary modulus decrease by increa sing the screw torque level.
Highlights
Internal fixation is the main method to cure the human bone fracture (Wahnert et al, 2012)
The interfragmentary modulus is the new factor of the plate fixation stability and it is affected by the torque level
The conventional screw can be used in the LC-Dynamic Compression Plate (DCP) as the DCP
Summary
Internal fixation is the main method to cure the human bone fracture (Wahnert et al, 2012). The plate fixation is the main choice of the internal fixation. The Dynamic Compression Plate (DCP) and the Limited Contact Dynamics Compression Plate (LC-DCP) are generally used to fix the broken bone. The conventional screws fix the plate and the bone by the compressive force that is generated by the applied torque at the screw head (Kanchanomai et al, 2008; Field et al, 2004; Kabak et al, 2004; Gao et al, 2011; Kumar et al, 2013). For the LCDCP, the locking screws are used to make the distance between plate and bone. The conventional screw can be used in the LC-DCP as the DCP
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