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Housemaid's knee - are you a victim? Find out here

It is caused by kneeling for long periods or repetitive knee movements

Anil Arora 

Noisy knees? Arthritis may be in your future

Housemaid’s knee or is caused by kneeling for long periods or repetitive knee movements. In this condition, the fluid builds up in the bursa (the sac of fluid that cushions the knee joints), resulting in swelling behind the knee called ‘Baker’s cyst’. It can also be caused by injuries or arthritis.

Bursitis is generally an inflammation of a bursa, a small sac of fluid with a thin lining. Our body has a number of bursae, which are generally found in places where there has been unusual pressure or friction and where tendons and ligaments pass over the bones. The function of the bursa is to reduce friction, allowing maximum motion around the joints. Generally, there are four bursae around the knee joints, however, the one in between the skin and the kneecap is most commonly affected.  

Causes

A number of factors contribute to the problem. Although, extended or continued pressure on the bursa in front of the knee is the main of the problem, other factors can also housemaid’s knee such as a sudden injury to the knee, recurrent minor injury to the knee, infections and other inflammatory diseases. People who have gout or are at higher risk of developing bursitis. The problem of gout is characterised by a buildup of uric acid crystals in the joints resulting in pain, inflammation, and swelling. 

Symptoms 

The first and foremost symptom of the problem is severe pain and swelling in the knee. The person may notice redness of the skin over the knee or tender kneecap. The person may also experience difficulty in bending the knee, kneeling and can develop fever (especially if the problem is caused by infection).

Diagnosis

The diagnosis of the problem is very simple and an experienced doctor will be able to identify it easily. It includes physical examination of the knee along with information like the occupation of the person, any past injury or a history of joint problems. If your doctor suspects that you have housemaid’s knee, the diagnosis will include examination of the fluid from the bursa. This procedure is carried out under controlled sterilised environment using a small needle, which is used to take out the sample directly from underneath the skin in front of the kneecap. After examination of the fluid, suitable treatment is prescribed.

Treatment

The type of the treatment depends on the severity of infection. It is usually cured with antibiotics. In case the pain is mild, NSAIDs (Non-steroidal anti-inflammatory drugs) are the best solution. Increased swelling may require removal of infected fluid by making a small incision. More severe cases may require a keyhole surgery - removal of prepatellar bursa, Supportive treatment includes use of ice packs, knee pads and specific exercises.
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First Published: Mon, June 12 2017. 10:07 IST
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