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Tennis elbow is a painful elbow disorder. This term is misleading because most people who have it did not get it from playing tennis. In fact, tennis elbow seldom has any connection with fun and games.
The technical name for tennis elbow is "lateral epicondylitis". This term indicates an inflammation occurring near a small point or projection of the upper arm bone (humerus) just above the elbow joint on the outer side of the arm. However, pain can also occur in other areas of the forearm and elbow. Some experts suggest that "lateral elbow pain syndrome" is a more accurate name, but this term is not yet commonly used.
The pain from tennis elbow comes mainly from injured or damaged tendons near the elbow. Tendons are strong bands of tissue that connect muscles to bones. When repeatedly stressed or overused, tendons can become inflamed and degenerate. This results in a painful condition called tendinopathy, the medical term for disorder of a tendon. Tennis elbow is simply a specific type of tendinopathy that occurs in a particular part of the elbow.
The development of tennis elbow can often be traced to the way of using the forearm muscles. These muscles control hand and wrist movements. They are attached to tendons that connect them to only two small points of bone just above the elbow, one on the outer side, the other on the inner side.
Muscles connected to the outer side of the elbow (extensors) are responsible for:
Muscles connected to the inner side of the elbow (flexors) are responsible for:
There are weak points in the way tendons connect these muscles to the bone above the elbow. The points where the tendons attach are sometimes too small to handle the strong force of the powerful muscles. These tendons can get overloaded when the hand and forearm are used in strong, jerky movements such as gripping, lifting, or throwing.
Tendons do not stretch when pulled. They are rope-like structures made of strong, smooth, shiny fibers. Strong forces or sudden impacts, however, can eventually tear their fibers apart in much the same way a rope becomes frayed. This type of injury is called a strain, and usually results in formation of scar tissue. Over time, strained tendons become thickened, bumpy, and irregular. Without rest and time for the tissue to heal, strained tendons can become permanently weakened.
Damaged tendons can occur on either side of the elbow. When it happens on the outside of the elbow, which is most common, it is called tennis elbow. When it happens on the inside, it is called "medial epicondylitis" or "golfer's elbow." Tennis elbow is considered an overload injury of the forearm extensor muscles.
No one knows exactly what causes the pain of tennis elbow. Most experts believe it is due to the small tears that develop in the tendons. Other possible causes include the development of scar-like tissue under the tendon, wear and tear of the elbow joint, or irritation and inflammation of nerves that pass near the elbow region.
The development of tennis elbow often relates to the way that workers carry out activities such as gripping, twisting, reaching, and moving. These activities can become hazardous when they are done:
Tennis elbow is associated with jobs that require repeated or forceful movements of the fingers, wrist, and forearm. It can develop because of too much force at once or small amounts of force for too long a period.
Specific movements associated with the development of tennis elbow include:
The movements in the first two activities mentioned above (rotation, bending, and gripping) are particularly hazardous when done while the arms are extended forward and/or sideways away from the body (torso).
Tennis elbow can cause extreme tenderness on the outer side of the elbow. This tenderness becomes painful and the pain may radiate outwards when the wrist and elbow are moved in certain ways. These include:
In a medical examination, pain experienced in any three of these movements can indicate the possibility of tennis elbow. Usually there is no outward sign of redness or swelling. Most often tennis elbow affects only one arm, usually the one that does most at work.
Tennis elbow can appear in many different ways. Some people get symptoms gradually after doing the same type of work for several years. Others get it suddenly, soon after they start doing a new type of work. Sometimes it can develop immediately following a single violent muscle exertion or after an elbow becomes injured. In other cases, tennis elbow occurs for no obvious reason.
Tennis elbow requires medical attention as soon as the symptoms appear. Early attention usually prevents the development of a serious disorder. The most important steps in treatment include:
Rest from the activities that cause elbow pain is the most important treatment for tennis elbow. This kind of disorder is often called "self-limiting" because it eventually disappears when people change or avoid activities that cause elbow pain. Watchful waiting rather than active treatment and intervention is fairly effective in pain reduction in some patients. Physicians sometimes give corticosteroid injections to reduce inflammation and speed healing. This treatment usually works, but it cannot be used repeatedly. Elbow bracing and support pads may also be worn for short term pain relief.
About one percent of cases last more than one year. This happens often in individuals who show little response to non-invasive and conservative treatment options. For these cases, surgery might be a solution. Surgical procedures for tennis elbows most commonly involve removal of degenerated or abnormal tissues. However, surgery does not always improve the situation.
Finding out what workplace activity was associated with a specific case of tennis elbow is important. Damage to the arms and elbows can become chronic if the activity causing the condition is not changed or discontinued.
Tennis elbow brings discomfort, pain, and risk of chronic disorder if not dealt with properly early after onset. Treatment for the disorder can sometimes last for several weeks or months and can be costly. So prevention is the most important means to reduce or control its occurrence in the workplace.
Prevention of tennis elbow requires:
Tasks associated with tennis elbow should be identified and modified to reduce the risk of serious injury. Of greatest concern is the use of fingers, wrists, and forearms in repetitive work involving forceful movement, awkward postures, and lack of rest. Avoid tasks that place excessive force, stress, or strain on muscles of the forearm.
However, keeping in mind that tennis elbow is just one of several different disorders caused by repetitive work is important. Prevention programs cannot be effective if they deal with only one part of the arm and neglect the hands, wrists, shoulders, neck or back. Effective prevention must deal with all disorders caused by repetitive work and the inappropriate demands on muscles and tendons.
Proper job design is the best way to avoid repetitive patterns of work. Ways to avoid repetition include:
Other aspects of prevention include:
For prevention of tennis elbow, having workstations arranged properly is important so that workers do not have to reach long distances constantly.
The choice of tools and placement of equipment can also help keep reaching distances to a minimum and limit the weight held or handled while reaching.
Proper work practices also include:
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Although every effort is made to ensure the accuracy, currency and completeness of the information, CCOHS does not guarantee, warrant, represent or undertake that the information provided is correct, accurate or current. CCOHS is not liable for any loss, claim, or demand arising directly or indirectly from any use or reliance upon the information.