Fall Prevention - priorities

"Fall prevention" is a subject that has exercised both the NHS and the government considerably in recent years. The National Service Framework for Older People includes prevention of falls as one of its "Standards", and health authorities around the country have been scrambling to develop Fall Prevention Strategies that demonstrate their focus on the problem.

Depending on whose figures you read, somewhere between a third and half of people over 65 suffer a fall in any given year, and the cost to the NHS of treating these fractures is very nearly £1 billion.

Preventing falls is clearly something that is well worth spending resources on, in financial terms alone, never mind the human costs of pain, lowered self-confidence, loss of mobility and independence.

And yet, all this high-powered attention has largely failed. The major effort has gone into osteoporosis screening and subsequent drug therapy for those identified as "at risk". Osteoporosis is a horrible condition, and there is no doubt that people whose vulnerability to it has been recognised will be grateful for the intervention. But the strategy has at least two weaknesses. Firstly, the test itself, which assesses bone mineral density (BMD), is not reliable, frequently either under- or over-estimating the condition, and therefore encouraging doctors to prescribe drug therapy for the wrong people. And secondly, the drugs - bisphosphonates- are quite expensive if over-prescribed. It has been calculated, for example, that the cost of preventing one hip fracture - the result of medicating 577 post-menopausal women for 12 months - is £120,000.

How does taking bisphosphonates stop you falling? The answer, of course, is that it doesn't. What it should do, is help to build up bone strength, so that the individual is less likely to suffer a fracture if they do fall. But as a means of preventing falls, it can have no value - and given that 80% of falls occur amongst people who don't have osteoporosis anyway, perhaps we should not be surprised that the overall strategy is not delivering the hoped-for results.

The real causes of falls are many, and can be complex. Certain illnesses, such as Parkinson's and Alzheimer's, bring an increased risk, as do some medications, notably antidepressants and diuretics, both of which are widely used in the most vulnerable age-group. Equally, there are many falls which could be avoided with a combination of exercise and commonsense. Exercise - and specifically gait-training - to improve strength, confidence and balance. Commonsense, to ensure that we remove hazards around the home (where most falls occur), such as rumpled rugs, trailing electrical flexes and general household clutter left in hallways.

Perhaps PCTs would do better to devote more of their resources to training their patients in how to keep themselves safe from falls, starting with those people most at risk due to medical conditions and medication regimes. Then we might see a real decline in the number of older people who lose their ability to live independently as the result of an accident.

You can read our guide to preventing and coping with falls here: Independent Living - fall prevention