Overview

Tendinitis is inflammation or irritation of a tendon — the thick fibrous cords that attach muscle to bone. The condition causes pain and tenderness just outside a joint.

While tendinitis can occur in any of your tendons, it's most common around your shoulders, elbows, wrists, knees and heels.

Some common names for various tendinitis problems are:

• Tennis elbow
• Golfer's elbow
• Pitcher's shoulder
• Swimmer's shoulder
• Jumper's knee

Most cases of tendinitis can be successfully treated with rest, physical therapy and medications to reduce pain. If tendinitis is severe and leads to the rupture of a tendon, you may need surgery.

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Symptoms

Signs and symptoms of tendinitis tend to occur at the point where a tendon attaches to a bone and typically include:

• Pain often described as a dull ache, especially when moving the affected limb or joint
• Tenderness
• Mild swelling

When to see a doctor

Most cases of tendinitis respond to self-care measures. See your doctor if your signs and symptoms persist and interfere with your daily activities for more than a few days.

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Causes

Although tendinitis can be caused by a sudden injury, the condition is much more likely to stem from the repetition of a particular movement over time. Most people develop tendinitis because their jobs or hobbies involve repetitive motions, which put stress on the tendons.

Using proper technique is especially important when performing repetitive sports movements or job-related activities. Improper technique can overload the tendon — which can occur, for instance, with tennis elbow — and lead to tendinitis.

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Diagnosis

Usually, your doctor can diagnose tendinitis during the physical exam alone. Your doctor may order X-rays or other imaging tests if it's necessary to rule out other conditions that may be causing your signs and symptoms.

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Complications

Without proper treatment, tendinitis can increase your risk of experiencing tendon rupture — a much more serious condition that may require surgery.

If tendon irritation persists for several weeks or months, a condition known as tendinosis may develop. This condition involves degenerative changes in the tendon, along with abnormal new blood vessel growth.

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Prevention

To reduce your chance of developing tendinitis, follow these suggestions:

• Ease up. Avoid activities that place excessive stress on your tendons, especially for prolonged periods. If you notice pain during a particular exercise, stop and rest.
• Mix it up. If one exercise or activity causes you a particular, persistent pain, try something else. Cross-training can help you mix up an impact-loading exercise, such as running, with lower impact exercise, such as biking or swimming.
• Improve your technique. If your technique in an activity or exercise is flawed, you could be setting yourself up for problems with your tendons. Consider taking lessons or getting professional instructions when starting a new sport or using exercise equipment.
• Stretch. Take time after exercise to stretch in order to maximize the range of motion of your joints. This can help to minimize repetitive trauma on tight tissues. The best time to stretch is after exercise, when your muscles are warmed up.
• Use proper workplace ergonomics. If possible, get an ergonomic assessment of your workspace and adjust your chair, keyboard and desktop as recommended for your height, arm length and usual tasks. This will help protect all your joints and tendons from excessive stress.
• Prepare your muscles to play. Strengthening muscles used in your activity or sport can help them better withstand stress and load.

Lifestyle and home remedies

To treat tendinitis at home, R.I.C.E. is the acronym to remember — rest, ice, compression and elevation. This treatment can help speed your recovery and help prevent further problems.

• Rest. Avoid activities that increase the pain or swelling. Don't try to work or play through the pain. Rest is essential to tissue healing. But it doesn't mean complete bed rest. You can do other activities and exercises that don't stress the injured tendon. Swimming and water exercise may be well-tolerated.
• Ice. To decrease pain, muscle spasm and swelling, apply ice to the injured area for up to 20 minutes several times a day. Ice packs, ice massage or slush baths with ice and water all can help. For an ice massage, freeze a plastic foam cup full of water so that you can hold the cup while applying the ice directly to the skin.
• Compression. Because swelling can result in loss of motion in an injured joint, compress the area until the swelling has ceased. Wraps or compressive elastic bandages are best.
• Elevation. If tendinitis affects your knee, raise the affected leg above the level of your heart to reduce swelling.

Although rest is a key part of treating tendinitis, prolonged inactivity can cause stiffness in your joints. After a few days of completely resting the injured area, gently move it through its full range of motion to maintain joint flexibility.

You can also try over-the-counter medications — such as aspirin, ibuprofen (Advil, Motrin IB, others), naproxen sodium (Aleve) or acetaminophen (Tylenol, others) — in an attempt to reduce the discomfort associated with tendinitis.

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Risk factors

Risk factors for developing tendinitis include age, working in particular jobs or participating in certain sports.

Age

As people get older, their tendons become less flexible — which makes them easier to injure.

Occupation

Tendinitis is more common in people whose jobs involve:

• Repetitive motions
• Awkward positions
• Frequent overhead reaching
• Vibration
• Forceful exertion

Sports

You may be more likely to develop tendinitis if you participate in certain sports that involve repetitive motions, especially if your technique isn't optimal. This can occur with:

• Baseball
• Basketball
• Bowling
• Golf
• Running
• Swimming
• Tennis

Source: http://www.mayoclinic.com