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Vertebral displacement in spondylolisthesis.
1Doncaster Royal Infirmary, Doncaster, UK.
Clinical Biomechanics (Bristol, Avon)
|August 7, 2013
Summary
Sagittal displacement in spondylolisthesis is linked to lumbosacral angle and metacarpophalangeal joint hyperextension. Childhood injuries may influence displacement, but findings require further investigation for isthmic and degenerative types.
Area of Science:
- Orthopedics
- Spine Surgery
- Radiology
Background:
- Spondylolisthesis, a condition involving vertebral slippage, presents in isthmic and degenerative forms.
- Understanding the etiological factors of sagittal displacement is crucial for effective treatment strategies.
Purpose of the Study:
- To investigate the contributing factors to sagittal displacement in patients with isthmic and degenerative spondylolisthesis.
- To correlate slip ratio with joint mobility, anatomical factors, and patient history.
Main Methods:
- Retrospective analysis of 162 patients with isthmic spondylolisthesis and 81 with degenerative spondylolisthesis.
- Comparison of slip ratio with lumbosacral angle, joint mobility (metacarpophalangeal hyperextension), spina bifida occulta, history of childhood injury, and self-assessed athletic ability.
Main Results:
- A significant correlation was found between slip ratio and lumbosacral angle in isthmic spondylolisthesis (p < 0.01).
- Metacarpophalangeal joint hyperextension correlated with slip ratio (p < 0.05).
- No significant difference in slip ratio was observed based on the presence of spina bifida; however, patients with degenerative spondylolisthesis often reported poor childhood athletic ability.
Conclusions:
- The lumbosacral angle and metacarpophalangeal joint hyperextension are associated with sagittal displacement in spondylolisthesis.
- While childhood injuries may play a role, further research is needed to confirm their statistical significance in the progression of spondylolisthesis.
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