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Science
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PROGRAMME INFO
Tuesday 21:00-21:30
Repeat Wednesday 16:30
Dr Mark Porter gives listeners the low-down on what the medical profession does and doesn't know. Each week an expert in the studio tackles a particular topic and there are reports from around the UK on the health of the nation - and the NHS.
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LISTEN AGAINListenÌý30 min
Listen to 6 May
PRESENTER
DR MARK PORTER
Dr Mark Porter
PROGRAMME DETAILS
TuesdayÌý6 MayÌý2008
A young woman's bare knees

Full programme transcript >>

Knees

This week Dr Graham Easton is locuming while Dr Mark Porter is away.
Ìý

Your knee has a tough job. It takes the full weight of your body and it’s often under considerable stress. The way it’s designed means it’s potentially unstable and vulnerable.ÌýIt's notÌýsurprising, then, that when you put your knee through its paces, it can sometimes let you down.

This week Dr Graham Easton taks a tour through some of the more common knee injuries and what can be done about them – from high tech surgery to rest and rehabilitation.

The knee is supported byÌýfour main ligaments,Ìýalong with the muscles surrounding it.Ìý

TheÌýtwo cruciate ligaments form a cross shape inside the joint, and their job is to stabilise front to back and twisting movements of the knee. Then there are the two collateral ligaments – one running down each side of the knee – which give the joint some side to side stability.

Damage to these ligaments is often caused by physical activity.ÌýÌýSometimes rest, physiotherapy and patience is enough to get things on the mend. However,Ìýreconstructive surgery is often needed, particularly for sportsmen and women.Ìý

Graham meets Matt Bartlett, a consultant orthopaedic surgeon with a special interest in knees at Northwick Park Hospital in North London, who describes the options for treating knee ligaments.

Injuries to the menisci - the cartilage shock absorbers in the knee between the thigh bone and shin bone, are also prone to injury, again often caused by playing sport.Ìý Damage to the menisci is often diagnosed and repaired using keyhole surgery. Dr Bartlett explains how the procedure works.

Physiotherapist Rob Mast from St Leonard's hospital in Hackney identifies what's causing discomfort in one patient - and gives her tips which should help to keep her running.

Next week: Sun and Skin
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