Thursday 30 August 2012

Foot orthotics in the NHS. When is custom not custom?

Are our NHS patients being sold down the river when it comes to custom foot orthotics?
I think some of them are....

Foot orthotics combine comfort with theraputically-altered foot and lower limb function. They are effective in rehabilitation after injury, in sport, and for patients with degenerative disease like arthritis.

Like many UK Podiatrists in private practice I see the occasional patient who has had foot orthotics supplied by the NHS.
Invariably these have been of poor quality. Recently, over the last couple of years, I have noticed an increase in NHS foot orthotics with a label stuck underneath. The label says custom.


Not custom, or even "custom". Just a standard NHS insole. Offered along with the advice to the (female) client to buy some trainers because it wouldn't fit in her shoes! Some NHS Trusts are better than others in this regard.


Now custom foot orthotics are something I'm familiar with - and so I should be, having worked with them for over 20 years. 

Custom foot orthotics have two specific attributes:
1. They are made from an impression of the individual patients foot, rather like making a handmade shoe from an individually-carved last.
2. They are made from materials chosen to best help the individual patient. Stiffness, resilience, springiness and cushioning are all qualities which are considered at when choosing materials for custom orthotics. Carbon-fibre, medical-grade polypropylene, high and low density foams, and anti-bacterial coverings are just some of the materials used.


Custom orthotic made from medical grade polypropylene with anti-bacterial cover. To fit a ladies walking shoe (pen for scale).

I have been involved in writing two medicolegal reports recently, for claimants who both had "custom" orthotics fitted by the NHS. That they were made from an impression of the claimants feet is not in dispute.
But they were not custom, not as I understand the word.

The first report concerned a claimant who was overweight, partly due to disability stemming from a road traffic accident. The NHS custom orthotics looked like orthotics to the untrained eye, but collapsed when any weight was placed on them.
They were made from a cheap and easily-machined material called EVA. There were two pairs made. The second pair didn't fit into shoes because they were so thick - they had to be to offer any semblance of stiffness.

The other report concerned a young man who had had an accident at work. He was supplied with "custom" orthotics which certainly fitted his shoes, but didn't take into account the fact that he was young, had an excellent chance of making a full recovery, and wanted to train for his favourite sport, which was hockey.
The orthotics were made from the same floppy material as the first claimant, and had the ubiquitous "custom" sticker underneath.

What is interesting is that these claimants were not being treated by the same hospital. 
One was in Shropshire, the other Leicestershire. Information from colleagues leads me to believe that poor-quality foot orthotics are being fitted by the NHS up and down the country.

Our Gold Standard for clinical information is the Cochrane Reviews database, and I'm well aware that research which has been included in Cochrane has shown that there is not much difference in action between custom and inexpensive over-the counter foot orthotics. This finding would allow any cash-strapped NHS Trust to offer cheap sub-standard foot orthotics to their patients without comeback. If the manufacturers of such orthotics were to stick a little custom label on the bottom of their orthotics they could probably charge the Trust a little more.
My own view is that although the Cochrane database is an undoubted valuable source of information, in this case it is wrong. There are many reasons why research can be biased, and I believe bias is rife in this particular area.

For more information on another example of how Cochrane may not be 100% correct 100% of the time you could go here British Medical Journal (clicky)


For those lawyers contemplating costings for their clients which may involve custom foot orthotics it is important to note that if there is a need the client will already have been provided with NHS foot orthotics.
This establishes the need, which then cannot be disputed.

In most cases the Bolam principle will not apply, because the need has been established and neither the need nor the treatment principle is in question. The efficacy of the orthotics is though, and it can easily be demonstrated that the efficacy of the NHS orthotics is poor.

True custom orthotics, bearing in mind the claimant will need several pairs, and these will need replaced over a lifetime, are not inexpensive.


For more information or to contact me go here

Wednesday 22 August 2012

Barefoot and minimalist-shoe running. Good or bad?

This debate has been going on for a while. It led, indirectly, to legal action against running-shoe companies Vibram and Adidas.

Advocates of barefoot running and minimalist-shoe running maintain that running without normal running shoes is better, and makes you less prone to injury.
Here is the thrust of their argument.

As a Podiatrist I have no problems with occasional barefoot running, or minimalist-shoe running.
I do have a problem with the "barefoot running is better for all" approach though.

Here's why:
Our feet were designed to work barefoot, agreed. But barefoot on a multitude of surfaces.
Homo sapiens is nothing if not adaptable. Our feet work well on a mixture of hard, flat, undulating, soft - even up a tree if that's where you have to go for food.
In the West, where most of us walk around on hard, flat surfaces for over 90% of the time, we find it more comfortable to wear shoes or sandals, at least for some of the time - because we were not designed solely for hard and flat surfaces.

Shoes and sandals cushion and create a comfortable interface between the ground and our feet. Having that little half-inch heel doesn't hurt either.

Creationist or evolutionist?
Whether you hold that we were created in God's image in the Garden of Eden some eleven thousand years ago, or that we have evolved from ancestors living millions of years ago doesn't make much difference as far as establishing what our feet were designed for.
As far as we know there was no concrete in the Garden of Eden. It's a certainty that there was no concrete two million years ago - maybe the odd flat rock.

Have a look at the skeleton here. He's way over eleven thousand years old, and his leg bones (and probably foot bones) are much the same as yours or mine. He's designed for adaptation, and fast and adaptable ambulation over a variety of surfaces.
He's probably not designed to live for more than forty or fifty years. Back then slowing down meant starve or be eaten. Joint wear-and-tear did not happen to the extent that joints ceased to function, as happens now. The entity ceased to function long before individual joints.

Our legs and feet have not miraculously evolved in the time we've been living on hard, flat surfaces.
Genetic changes of that magnitude take much longer than a couple of hundred years to happen.
The reality is that we still possess lower limbs which have been designed for adaptation, and fast and adaptable ambulation over a variety of surfaces.

 Barefoot running for any length of time on a hard, flat surface is not natural, and therefore somehow good for you. Some barefoot running on an appropriate surface like sand may be good for you. Running barefoot all the time is a fad, and likely to cause injury in the long-term.

Minimalist or barefoot running shoes were born from the need for some barefoot runners to wear some protective footgear.
Predictably, as they developed so did the advertising hype - based, it would seem, on less than robust research results......

SportsOneSource are reporting:
Vibrams FiveFingers Sued over Health Claims 

Quote:
A group of five law firms has filed a class-action suit against Vibram USA Inc and Vibram FiveFingers LLC in the U.S. District Court for the District of Massachusetts alleging the company used deceptive statements about the health benefits of barefoot running.
Quote:
The lawsuit asserts that; 1) health benefits claims Vibram FiveFingers has used to promote the shoes are deceptive; 2) that FiveFingers may increase injury risk as compared to running in conventional running shoes, and even when compared to running barefoot; 3) that there are no well-designed scientific studies that support FiveFingers claims.


More information about the similar action against Adidas here..........