Prevention of Low Back Pain - Is it Time to Take Another Look at Ergonomics Based Interventions?

Musculoskeletal disorders (MSDs), of which lowvibration. Other associated factors include
back pain (LBP) is one, are among the mostpsychosocial issues such as low social support, low
common causes of sickness absence, long-termjob satisfaction and work organisational factors
incapacity benefit (IB) for work, and ill health(Hermans 2000).
retirement: (Waddell 2006). MSDs account forDillane et al (1996) pointed out that meaningful
23% of sick certification, 21% of IB and 15-50%diagnosis of LBP is rare which is a situation that
of ill health retirement (in different occupationalappears to have changed little in the intervening
settings).The annual incidence of LBD has beenyears with eighty fivepercent of chronic low back
reported to be approximately 5% (Andersson,pain (CLBP) disorders still having no known
1999; Hoogendoorn et al., 1999). In the UK, thediagnosis leading to a classification of 'non-specific
annual incidence of low back pain in the generalCLBP (O'Sullivan 2005).
population is reported to be 4.7%, with a pointA diagnostic method of classification has been
prevalence of 19%, a twelve month ofrecently published, however, that is based on
prevalence of 39% and a lifetime prevalence ofeliciting a pattern that reveals the diagnosis of
59% (Hillman et al 1996).hitherto non-specific low back pain. This heralds an
When presenting as a musculoskeletal disorder,new era where in there is potentially a much
LBP is a major cause of business inefficiencyclearer path towards prevention as there are now
accounting for half of the percentages presenteda set of defined patterns that reveal the diagnosis
above and costing the economy £5bn per(Sweetman 2005).
annum with the loss of 4.9 million working days.There are seven patterns that Sweetman (2005)
From an economic point of view alone, therefore,has been identified:
the primary prevention of LBP appears to be- Facet Joint Pattern
quite an attractive prospect.- Rotation Back Strain Pattern
Porter (1993) outlined the following aspects to be- Two Disc Patterns
considered for the prevention of back pain:- Pelvi - spondylitis and sacro - iliitis pattern
- Changing the environment - ergonomics- No sign pattern
- Changing the individual - morphologyIt is reasonable to suppose that sub homogenous
- Changing attitudes - educationgroups of non-specific back pain that can be
- Deployment of individuals at work - screeningdiagnosed through establishing specific patterns will
There is little evidence that the application ofrespond to specific treatments, will have specific
Ergonomics within the work place has anyaetiologies and specific means of prevention that
preventive affect (Wadell 1998). Changingmay well vary. Of the above patterns, Sweetman
morphology is probably still a dream, and(2005) has been able to demonstrate that heavy
education has not demonstrated any benefitwork exacerbates one pattern (Facet Joint
either (Burton et al 2004). The deployment ofPattern) whereas a different type of heavy work
individuals at work may hold merit with someprotects against another pattern (Rotation Back
form of screening but is probably not practicableStrain). This finding illustrates why interventions
or ethical within the general world of work.that hitherto reduce loading (that are often
Little progress has been made into the primarycontained within Ergonomics and Education Based
prevention of LBP but as the GovernmentTraining Interventions)may not facilitate a
struggles with the cost of increasing dependencyreduction in the incidence of LBD as,whilst
ratios, the edict that prevention is better thanprotecting against one form of back pain, they
cure is moving up the political agenda and is beingexacerbate another - potentially cancelling out any
applied to the health of the Nation in general aseffect on incidence.
well as Occupational Health.Going forwards, Ergonomics based interventions
Factors that are associated with LBP in theshould take account of the fact that loading spinal
workplace include the physical aspects of worktissues can be protective and that Ergonomics
such as heavy physical work, the lifting andinterventions henceforth should include
handling of load, awkward and static postures,interventions that appropriately increase the
repetitive bending and twisting and whole bodyloading on spinal tissues.