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INTRODUCTION: Back pain has been described as the "nemesis of medicine" and is the largest occupational health and safety problem in Australia, with an estimated annual cost of over $8b in disability and lost production (1). It has been estimated that 80% of the population experience back pain at some stage in their lives. However the number of injuries sustained and working days lost can be significantly reduced by adopting preventative occupational health and safety education programs (1-3). The following material is an educational page in spinal care to aid in the prevention and management of work place injuries.
2. THE MECHANISMS OF SPINAL PAIN: Spinal injuries
are generally believed to be cause by a single incident or direct trauma,
however the most frequent mechanism is a process of sustained and/or frequent
loading and strain. Therefore back pain doesn't just happen rapidly
- it develops. For example when an individual bends to pick
up a box and develops back pain, he she tends to blame the box. In contrast,
an individual who picks up a box and has a heart attack would not consider
blaming the box for the heart problem The patient understands that, although
the chest pain may have been triggered by a particular activity, the activity
did not create the problem. It is important to understand that many back
problems are similar to heart disease, they do not just happen.. .they
develop. Therefore the cause of back pain is the result of an accumulation
of stresses over a period of time. 3. SOURCES OF SPINAL PAIN: Nearly all the structures of the back and neck can cause pain. Most commonly, muscles, tendon ligaments, or joints become sources of pain when overloaded. For example being on the telephone or working at the computer for long periods can strain the neck, upper back and shoulder. The joints and muscles of the back are able to cause local or referred pain (some distance from the origin).
Normal upright
spinal posture reduces potential strain. Unfortunately our modem sedentary
lifestyles by overusing the sitting position in cars, watching TV and
working at desks and computer stations have imbalance our normal upright
posture (Fig 7). Humans were not designed to SIT.
Fig 7. Effects of posture on lumbar disk pressure
5. FIRST AID FOR AN ACUTE EPISODE OF BACK PAIN: Acute disabling episode of back pain can provoke anxiety and anger. Until your back 'goes out' you do not realize just how many activities place strain on your back. Fortunately, such episodes typically are transient and calm down after 2 to 3 days. However approximately 5-15% of all individuals suffering a back problem will develop chronic back pain. Therefore much can and should be done to ensure that an acute episode does not mushroom into severe chronic episode. Following are steps to aid in acute back pain:
Consult
your chiropractor on gentle treatments that speed the initial goal
of stabilizing the painful area and avoid re-injury. As soon
as your acute pain begins to ease, the second goal of care is to
get you active by relaxing muscle tension and loosening stiff joints.
The third and final goal is to achieve reconditioning of your "weak
link". This weakness is targeted with stretching and strengthening
exercises and unless addressed will predispose you to future recurrences Back and
neck pains are interwoven into our lives. They are common yet unpleasant
experiences that, if mismanaged can become chronically disabling (15%),(2).
According to recent independent government studies from Canada, the
United States and Britain concerning the back pain problem, consensus
has emerged that this poor report card is related to the overprescription
of bed rest and medication and the failure to restore functional integrity
to joints and muscles. The Rand
corporation, British Low Back Pain Guidelines, and the U.S. Agency for
health Care Policy and Research have found that chiropractic management
and spinal manipulation is one of the most effective forms of early intervention
for back pain (4-7). The Manga (5) report found "On the evidence
particularly the most scientifically valid studies, spinal manipulation
applied by chiropractors is shown to be more cost effective than alternative
treatments for low back pain". The authors also concluded that
chiropractic manipulation is safer than medical management of low
back pain (5). Another study showed that the average chiropractic bill
for work related back injuries was less than half that of medical treatment
(9). The sitting
posture causes fatigue because it creates pressure on the discs of the
low back and the muscular effort required keeping both our neck and back
upright (Fig 9a). The correct sitting position (Fig 9b), involves:
The slumped head-forward posture causes the muscles of the neck and shoulders to become fatigued and strained (Fig lOa + b). Headaches, neck, shoulder and arm pain can result from this posture therefore it is important that your shoulders are relaxed back and down when you sit or stand. A simple exercise of rolling your shoulders back and down (by squeezing your shoulder blades together) rotate your hands out and tuck your chin (Fig 11), performed frequently throughout the day can prevent these ill effects of the slumped posture.
SLEEPING Your posture for sleeping is also important. The ideal sleep posture includes:
If your pillow is not supporting you properly, too big or too small, you might wind up with recurrent 'stiff necks', headaches, or even referred pain to the shoulder or arm. Remember that your head is bigger than you neck, so accommodating both without distorting the position of your neck may require a special orthopedic pillow.
LIFTING Lifting is properly the area of greatest concern in relation to work place injuries. The proper lifting technique (Fig 13) follows:
Fig 18 - Back relief in the 90/90
Technique for getting out or in bed with bad back
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