Small fluid-filled sac known as bursa functions by providing a cushion
between bones, tendons and muscles around joint areas. These sacs are lined by
synovial membrane with an inner capillary layer of slimy fluid with the same
consistency with that of an egg yolk. This helps reduce friction between bones.
It reduces friction between articular cartilages of synovial joints during
movement thus, allowing free movement. It is at the point of contact of the
articulating bones that these joints achieve movement. Bursae are typically
saclike structures that are located strategically to alleviate friction in some
joints such as the shoulders and the knees, which are filled with fluid. In
some instances, one or more bursae may be inflamed. This condition is known as
bursitis. With this condition, movement becomes extremely difficult and
painful. Moving the tendons and muscles over the affected area may aggravate
the inflammation.
This condition commonly occurs after doing extremely strenuous
repetitive exercises and physical activities involving excessive pressure such
as running, cycling, climbing stairs, and standing for long period of time.
Trauma can also cause bursitis. A traumatic injury like accident or a fall may
result in vasodilation allowing proteins and extra cellular fluids into the
affected bursae leading to inflammation. In some cases, bacterial infection may
cause bursitis. The most common areas in the body prone to bursitis include the
rotator cuff of the shoulders, elbows, buttocks, hips, knees and ankles. Other health problems may also contribute to
bursitis. Examples of these health conditions are arthritis, thyroid problems,
as well as diabetes mellitus. Unequal leg length has also been found to cause bursitis
since this condition can lead to irritation to the hip bursa when performing
activities. Studies have also found that calcium and crystal deposits cause
bursitis. Some cases of bursitis are caused by previous history of surgeries
like prosthetic implants especially on the hip.
Diagnosing bursitis involves medical history and a thorough physical
medical examination. In some cases, x-rays and blood tests may be indicated.
Medical history includes the client’s recent or ongoing activities, as well as
joint injuries. During physical examination, the clinician palpates by lightly
pressing the affected area. During this assessment, localized tenderness and
swelling can be observed. Bursitis is suspected when these manifestations are
presented with a history of a recent injury which occurred two to three days
prior to the onset of pain and discomfort. X-rays are used to rule out other
similar health condition such as abnormalities in the bones, arthritis, and
calcium deposits. Blood tests are usually needed to confirm other underlying
health conditions like gout and rheumatoid arthritis.
Bursitis symptoms vary from local tenderness and joint pain to
stiffness, to a burning sensation around the inflamed bursa area surrounding
the affected joint. Pain is the most common symptom of this condition. It may
appear gradually or may appear sudden and severe. The pain experienced is
usually characterized as dull and sometimes sharp. The pain and discomfort
usually worsen during and after every activity and commonly worst a day
following the activity. Stiffness of the affected area is commonly experienced
early in the morning. There is also restricted or limited movement especially
around the affected area. Directly over the inflamed bursa, redness and
swelling may be observed. In severe cases of bursitis, there may be loss of
function of the affected area. It is important to seek medical help when these
symptoms are experienced and bursitis is suspected.
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