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Repetitive strain injury

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Title: Repetitive strain injury  
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Subject: Human factors and ergonomics, Occupational safety and health, Occupational health psychology, RSIBreak, Xwrits
Collection: Musculoskeletal Disorders, Occupational Diseases, Overuse Injuries, Physical Ergonomics
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Repetitive strain injury

Repetitive strain
Classification and external resources
ICD-10 M70, X50, Z57.7
ICD-9 E927.1, E927.3—E927.9, 727.2
DiseasesDB 11373
eMedicine pmr/97
MeSH D012090

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."[1] RSIs are also known as cumulative trauma disorders, repetitive stress injuries, repetitive motion injuries or disorders, musculoskeletal disorders, and occupational or sports overuse syndromes.

Contents

  • Definition 1
    • Popular terms 1.1
  • History 2
  • Treatment 3
  • See also 4
  • Notes 5
  • External links 6

Definition

Repetitive strain injury (RSI) and cumulative trauma disorders 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.[1][2] 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.[1][2]

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.[3]

Popular terms

Specific sources of discomfort have been popularly referred to by terms such as Blackberry thumb, iPod finger, Playstation thumb,[4] Rubik's wrist or "cuber's thumb",[5] stylus finger,[6] raver's wrist,[7] and Emacs pinky, among others.

History

Although seemingly a modern phenomenon, RSIs have long been documented in the medical literature. In 1700, the Italian physician


  • Repetitive Strain Injuries at DMOZ
  • Musculoskeletal disorders from the European Agency for Safety and Health at Work (EU-OSHA)
  • Amadio PC (January 2001). "Repetitive stress injury". J Bone Joint Surg Am 83–A (1): 136–7; author reply 138–41.  
  • Harvard RSI Action
  • Prevention and Management of Repetitive Strain Injury
  • Epidemiological and ergonomic study of occupational factors associated with syndromes of upper limb disorders in keyboard operators by M Hanson and others. Institute of Occupational Medicine Research Report TM/99/04
  • Development of an aid to identifying task elements, which may predispose individuals to work related upper limb disorders by RA Graveling and others. Institute of Occupational Medicine Research Report TM/90/08
  • Clinical epidemiological study of relations between upper limb soft tissue disorders and repetitive movements at work by CJ English and others. Institute of Occupational Medicine Research Report TM/88/19

External links

  1. ^ a b c Public Employees Occupational Safety and Health Program of the New Jersey Department of Health and Senior Services
  2. ^ a b van Tulder M, Malmivaara A, Koes B (May 2007). "Repetitive strain injury". Lancet 369 (9575): 1815–22.  
  3. ^ "Welcome to the RSI Awareness Website". Rsi.org.uk. 2010-11-17. Retrieved 2014-07-17. 
  4. ^ Vaidya, Hrisheekesh Jayant (March 2004). "Playstation thumb". The Lancet 363 (9414): 1080.  
  5. ^ Waugh D (September 1981). "Cuber's thumb". N. Engl. J. Med. 305 (13): 768.  
  6. ^ December 30, 2012 (2012-12-30). "5 Modern Technology Strain Injuries | Carpal Tunnel Syndrome". Ctsplace.com. Retrieved 2014-07-17. 
  7. ^ raver’s wrist
  8. ^ Ramazzini, De Morbis Artificum Diatriba (Diseases of Workers), Modena Italy,1700.
  9. ^ Pearce JM (April 2009). "James Paget's median nerve compression (Putnam's acroparaesthesia)". Pract Neurol 9 (2): 96–9.
  10. ^ Ahuja NK, Chung KC, "Fritz de Quervain, MD (1868-1940): stenosing tendovaginitis at the radial styloid process", J Hand Surg., vol.29 #6 pp. 1164–70.
  11. ^ Tinel, J., “Nerve wounds” London: Baillère, Tindall and Cox, 1917
  12. ^ Tinel, J., ‘’Le signe du fourmillement dans les lésions des nerfs périphériques’’, “Presse médicale”, 47, 388-389,1915
  13. ^ Tinel, J. ‘’The "tingling sign" in peripheral nerve lesions’’ (Translated by EB Kaplan). In: M. Spinner M (Ed.), “Injuries to the Major Branches of Peripheral Nerves of the Forearm”, 2nd ed. pp 8-13, Philadelphia: WD Saunders Co, 1978.
  14. ^ http://www.turner-white.com/pdf/hp_jul00_tinel.pdf
  15. ^ Ratzlaff, C. R.; J. H. Gillies; M. W. Koehoorn (April 2007). "Work-Related Repetitive Strain Injury and Leisure-Time Physical Activity". Arthritis & Rheumatism (Arthritis Care & Research) 57 (3): 495–500.  
  16. ^ Carolyn Kisner & Lyn Allen Colby, Therapeutic Exercise: Foundations and Techniques, at 473 (5th Ed. 2007).
  17. ^ Berkeley Lab. Integrated Safety Management: Ergonomics. Website. Retrieved 9 July 2008.

Notes

See also

Ergonomics: the science of designing the job, equipment, and workplace

Modifications of posture and arm use (human factors and ergonomics) are often recommended.[17]

General exercise has been shown to decrease the risk of developing RSI.[15] Doctors sometimes recommend that RSI sufferers engage in specific strengthening exercises, for example to improve sitting posture, reduce excessive kyphosis, and potentially thoracic outlet syndrome.[16]

The most-often prescribed treatments for early-stage RSIs include drug therapies such as anti-inflammatory medications combined with passive forms of physical therapy such as rest, splinting, massage and the like. Low-grade RSIs can sometimes resolve themselves if treatments begin shortly after the onset of symptoms. However, some RSIs may require more aggressive intervention including surgery and can persist for years.

RSIs are assessed using a number of objective clinical measures. These include effort-based tests such as grip and pinch strength, diagnostic tests such as Finkelstein's test for Dequervain's tendinitis, Phalen's Contortion, Tinel's Percussion for carpal tunnel syndrome, and nerve conduction velocity tests that show nerve compression in the wrist. Various imaging techniques can also be used to show nerve compression such as x-ray for the wrist, and MRI for the thoracic outlet and cervico-brachial areas.

Treatment

[14]

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