Definition
Repetitive strain injury (RSI) is a syndrome incorporating several discrete conditions associated with activity-related arm pain such as edema, tendinitis, carpal tunnel syndrome, cubital tunnel syndrome, thoracic outlet syndrome, stenosing tenosynovitis, intersection syndrome, golfer's elbow or medial epicondylitis, tennis elbow or lateral epicondylitis, radial tunnel syndrome, and focal dystonia.
RSI is also used as an umbrella term for non-specific illnesses popularly referred to as Blackberry thumb, iPod finger, gamer's thumb (a slight swelling of the thumb caused by excessive use of a gamepad), Rubik's wrist or "cuber's thumb" (tendinitis, carpal tunnel syndrome, or other ailments associated with repetitive use of a Rubik's Cube for speedcubing), Trigger finger, Stylus Finger" (swelling of the hand caused by repetitive use of mobile devices and mobile device testing.), Raver's Wrist, caused by repeated rotation of the hands for many hours (for example while holding glow sticks during a rave), and others.
Doctors have recently begun making a distinction between tendinitis and tendinosis in RSI injuries. There are significant differences in treatment between the two, for instance in the use of anti-inflammatory medicines, but they often present similar symptoms at first glance and so can easily be confused.
The following complaints are typical in patients who might receive a diagnosis of RSI:
- Short bursts of excruciating pain in the arm, back, shoulders, wrists, hands, or thumbs (typically diffuse – i.e. spread over many areas).
- The pain is worse with activity.
- Weakness, lack of endurance.
Read more about this topic: Repetitive Strain Injury
Famous quotes containing the word definition:
“... we all know the wag’s definition of a philanthropist: a man whose charity increases directly as the square of the distance.”
—George Eliot [Mary Ann (or Marian)
“It is very hard to give a just definition of love. The most we can say of it is this: that in the soul, it is a desire to rule; in the spirit, it is a sympathy; and in the body, it is but a hidden and subtle desire to possess—after many mysteries—what one loves.”
—François, Duc De La Rochefoucauld (1613–1680)
“No man, not even a doctor, ever gives any other definition of what a nurse should be than this—”devoted and obedient.” This definition would do just as well for a porter. It might even do for a horse. It would not do for a policeman.”
—Florence Nightingale (1820–1910)