Unhappy triad

Jump to: navigation, search
Unhappy triad
Knee diagram.png
Knee
ICD-10 S83.7

WikiDoc Resources for Unhappy triad

Articles

Most recent articles on Unhappy triad

Most cited articles on Unhappy triad

Review articles on Unhappy triad

Articles on Unhappy triad in N Eng J Med, Lancet, BMJ

Media

Powerpoint slides on Unhappy triad

Images of Unhappy triad

Photos of Unhappy triad

Podcasts & MP3s on Unhappy triad

Videos on Unhappy triad

Evidence Based Medicine

Cochrane Collaboration on Unhappy triad

Bandolier on Unhappy triad

TRIP on Unhappy triad

Clinical Trials

Ongoing Trials on Unhappy triad at Clinical Trials.gov

Trial results on Unhappy triad

Clinical Trials on Unhappy triad at Google

Guidelines / Policies / Govt

US National Guidelines Clearinghouse on Unhappy triad

NICE Guidance on Unhappy triad

NHS PRODIGY Guidance

FDA on Unhappy triad

CDC on Unhappy triad

Books

Books on Unhappy triad

News

Unhappy triad in the news

Be alerted to news on Unhappy triad

News trends on Unhappy triad

Commentary

Blogs on Unhappy triad

Definitions

Definitions of Unhappy triad

Patient Resources / Community

Patient resources on Unhappy triad

Discussion groups on Unhappy triad

Patient Handouts on Unhappy triad

Directions to Hospitals Treating Unhappy triad

Risk calculators and risk factors for Unhappy triad

Healthcare Provider Resources

Symptoms of Unhappy triad

Causes & Risk Factors for Unhappy triad

Diagnostic studies for Unhappy triad

Treatment of Unhappy triad

Continuing Medical Education (CME)

CME Programs on Unhappy triad

International

Unhappy triad en Espanol

Unhappy triad en Francais

Business

Unhappy triad in the Marketplace

Patents on Unhappy triad

Experimental / Informatics

List of terms related to Unhappy triad

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

An unhappy triad (or terrible triad, or O'Donoghue's triad[1]) is an injury to the knee. It commonly occurs in contact sports (such as American football). The mechanism for this injury occurs when a lateral (outside) force to the knee is received while the foot is fixed on the ground.

Structures in triad

This scenario causes an injury to three knee structures:

The inclusion of the lateral meniscus in the triad has been recently ascertained as it previously had been incorrectly postulated that the medial meniscus was the third component.[2]

Terminology

The term "unhappy triad" was coined by O'Donoghue in 1950.[2][3][4] However, since then, this term and the term "terrible triad" have also been used to describe several other combinations of joint injuries, including those of the elbow[5] and shoulder.[6]

The term "terrible triad" is also sometimes used in the popular press to describe conditions relating to pain, or even to refer to the MacDonald triad.

MR images demonstrate O'Donoghue's unhappy triad


See also

Additional images

References

  1. Shelbourne K, Nitz P (1991). "The O'Donoghue triad revisited. Combined knee injuries involving anterior cruciate and medial collateral ligament tears". Am J Sports Med. 19 (5): 474–7. PMID 1962712.
  2. 2.0 2.1 Barber F (1992). "What is the terrible triad?". Arthroscopy. 8 (1): 19–22. PMID 1550645.
  3. O'Donoghue D (1950). "Surgical treatment of fresh injuries to the major ligaments of the knee". J Bone Joint Surg Am. 32 (A:4): 721–38. PMID 14784482.
  4. O'Donoghue D. "The unhappy triad: Etiology, diagnosis and treatment". Am J Orthop. 6: 242-7 PASSIM. PMID 14237439.
  5. Pugh D, McKee M (2002). "The "terrible triad" of the elbow". Tech Hand Up Extrem Surg. 6 (1): 21–9. PMID 16520629.
  6. Simonich S, Wright T. "Terrible triad of the shoulder". J Shoulder Elbow Surg. 12 (6): 566–8. PMID 14671520.

External links

de:Unhappy Triad



Linked-in.jpg