back health presentation

15/05/13Mythbusting spinal imaging:Jarvik, J. G., & Deyo, R. A. (2002). Diagnostic evaluation of low backpain with emphasis on imaging. Ann Intern Med, 137(7), 586–597.For patients > 50 years of age or whose findings suggest systemicdisease, plain x-rays and laboratory tests almost completely rule outsystemic diseases.Advanced imaging should be reserved for patients considering surgeryor where systemic disease is strongly suspected.Nguyen, T. H. et al (2011). Long-term outcomes of lumbar fusion amongworkers' compensation subjects: a historical cohort study. Spine, 36(4),320–331.A total of 725 lumbar fusion cases were compared to 725 controls whowere randomly selected from a pool of WC subjects with chronic lowback painConservative management achieved far better outcomes for days off,return to work, permanent disability.Explain Pain, Butler & Moseley, 2003Mythbusting sitting and back injury.Intradiscal pressure (MPa)1.61.41.210.80.60.40.2n = 6n = 4n = 7n = 20n = 10n = 4n = 4n = 8StandSitn = 1Compress+ bend& torque01964/1965 1964/1965 1970 1970 1970 1974 1982 1999 19991990 1991Nachemson Nachemson Nachemson Okushima Okushima Andersson Schultz Sato WilkeRanu GordonIn vivo research papersIn vitro Claus et al. J EMG Kines, 2008Explain Pain, Butler & Moseley, 20034