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Paradoxical motion in spondylolisthesis due to two-segment instability
1Center for Radiological Sciences, Iwate Medical University, Morioka, Japan.
Archives of Orthopaedic and Trauma Surgery
|January 1, 1997
Summary
Unstable spondylolytic spondylolisthesis can show paradoxical motion, with L5 vertebral displacement increasing during extension compared to flexion. This may be caused by axial loading and instability in adjacent spinal segments.
Area of Science:
- Orthopedics
- Spinal Biomechanics
- Radiology
Background:
- Spondylolytic spondylolisthesis is a condition involving vertebral slippage.
- Understanding dynamic motion is crucial for diagnosing spinal instability.