bending this way that way forwards and backwards
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- 1. Quantitative FluoroscopyVsFunctional Radiographyof the lumbar spineFiona MellorResearch RadiographerT: 01202 436280E; [email protected]
- 2. Learning outcomesWhy measure intervertebral motion? Sources of errors and variation inflex/ext (functional) radiographsA new adaptation of fluoroscopy(quantitative fluoroscopy - QF)Comparison of radiation dose Novel uses for QF/other studies
- 3. http://www.aecc.ac.uk/research/imrci
- 4. Diagnostic categoriesof back pain (CSAG 1994)1% Serious pathology4% Nerve root compression95% Simple (Non-specific) backache- Chemical- Central sensitization- Mechanical (Instability)
- 5. Why measure intervertebralmotion? DiagnosisTreatment DisabilityResearch
- 6. Motion Subsystems(Panjabi 1992)PassiveActiveMotorControl
- 7. In vitro analysis
- 8. BackWellcome film library. London
- 9. via the presentIntra and inter subjectvariationIntra and inter examinererrorPositioningDefinition of normal
- 10. . to the future
- 11. Passive QuantitativeFluoroscopyAcquisition Image Analysis Output
- 12. Image analysis
- 13. Vertebral rotation
- 14. Inter-vertebral rotation
- 15. PhDHypothesis: There is a higherprevalence of abnormal mid lumbarinter-vertebral motion patterns in patientswith mechanical LBP compared tocontrols QF passive motion 40 Patients (mechanical CNSLBP) & 40 healthyvolunteers Coronal and sagittal Global range 40o Each direction (Lt Rt, flx, ext)Funded by the NIHR Clinical Academic Training Fellowship
- 16. Results
- 17. Abnormal motion patternsMaximum rotation p controls
- 18. Reference intervalsA definition of abnormal is those whose rotationfalls beyond thatachieved by 95% of thehealthy populationHyper-mobility: p