Bending this way that way forwards and backwards
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- 1. Quantitative FluoroscopyVsFunctional Radiographyof the
lumbar spineFiona MellorResearch RadiographerT: 01202 436280E;
imrci.fmellor@aecc.ac.uk
- 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