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Tendinosis describes pain and inflammation in a tendon, the structure that enables bones and joints to move when muscles contract.
The condition is caused by small tears that occur in the tendon tissue, which causes the number of tendon repair cells to increase. This can lead to a reduction in tensile strength which, in turn, increases the likelihood of the tendon rupturing.
Some of the primary features of tendinosis include degeneration of the callagenous matrix; a lack of cells involved in inflammation and an increase in the amount of blood vessels.
Tendinosis may affect tendons in the shoulder, knee, wrist, elbow, finger, thigh or heel. Tendon tears can be caused by injury incurred through sport, for example, and overuse of a tendon can lead to repetitive strain injury.
Some of the main symptoms of this condition are described below:
Treatment approaches to tendinosis include taking pain relief medications and making lifestyle changes such as adjusting posture when sitting or strengthening the joints through exercise.
There are various other approaches to managing this condition and they differ depending on the severity of symptoms and which tendon is affected.
Some measures people can take if they have tendinosis include:
Usually, tendinosis improves over time and surgery is not required, but in some severe cases surgery is considered as an option.
Corticosteroids can be injected into the joint spaces to reduce inflammation. These injections can relieve pain but they can cause side effects such as thinning of the skin.