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  Indian J Med Microbiol
 

Figure 6: (a) Illustration revealing the destructive nature of the forces with the fracture line passing through the DLC. The lever arms in ankylosing spondylitis are longer due to the ankylosis at adjacent joints increasing torque forces around the fracture line. (b-d) Illustration revealing the forces in the coronal and axial planes that can cause disruption and worsening of the fracture. As the lever arms are long in patients with ankylosing spondylitis, the forces are much greater and short segment forces fusions cannot control for movements in the coronal and axial planes, and the sagittal plane with resultant increased failure rates

Figure 6: (a) Illustration revealing the destructive nature of the forces with the fracture line passing through the DLC. The lever arms in ankylosing spondylitis are longer due to the ankylosis at adjacent joints increasing torque forces around the fracture line. (b-d) Illustration revealing the forces in the coronal and axial planes that can cause disruption and worsening of the fracture. As the lever arms are long in patients with ankylosing spondylitis, the forces are much greater and short segment forces fusions cannot control for movements in the coronal and axial planes, and the sagittal plane with resultant increased failure rates