Overuse injuries

Repetitive strain
Classification and external resources
Specialty	Sports medicine, orthopedics
ICD-10	M70, X50, Z57.7
ICD-9-CM	E927.1, E927.3—E927.9, 727.2
DiseasesDB	11373
eMedicine	pmr/94
MeSH	D012090
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A repetitive strain injury (RSI) is an "injury to the musculoskeletal and nervous systems that may be caused by repetitive tasks, forceful exertions, vibrations, mechanical compression, or sustained or awkward positions." RSIs are also known as cumulative trauma disorders, repetitive stress injuries, repetitive motion injuries or disorders, musculoskeletal disorders, and occupational or sports overuse syndromes.

Repetitive strain injury (RSI) and associative trauma orders are umbrella terms used to refer to several discrete conditions that can be associated with repetitive tasks, forceful exertions, vibrations, mechanical compression, or sustained/awkward positions. Examples of conditions that may sometimes be attributed to such causes include edema, tendinosis (or less often tendinitis), carpal tunnel syndrome, cubital tunnel syndrome, De Quervain syndrome, thoracic outlet syndrome, intersection syndrome, golfer's elbow (medial epicondylitis), tennis elbow (lateral epicondylitis), trigger finger (so-called stenosing tenosynovitis), radial tunnel syndrome, and focal dystonia.

Since the 1970s there has been a worldwide increase in RSIs of the arms, hands, neck, and shoulder attributed to the widespread use of typewriters/computers in the workplace that require long periods of repetitive motions in a fixed posture.

Specific sources of discomfort have been popularly referred to by terms such as Blackberry thumb, iPod finger, mouse arm disease, PlayStation thumb, Rubik's wrist or "cuber's thumb", stylus finger, raver's wrist, and Emacs pinky,

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