Unhappy triad
Unhappy Triad
The Unhappy Triad, also known as a blown knee or terrible triad, is a severe injury to the knee, specifically to three major ligaments: the anterior cruciate ligament (ACL), the medial collateral ligament (MCL), and the medial meniscus.
Pronunciation
Unhappy Triad: /ʌnˈhæpi traɪæd/
Etymology
The term "Unhappy Triad" is derived from the significant pain and long recovery period associated with the injury. The word "triad" refers to the three ligaments involved in the injury.
Description
The Unhappy Triad occurs when the knee is hit on the outer side while the foot is planted, causing the knee to buckle inward. This can result in tearing of the ACL, MCL, and medial meniscus. The injury is most commonly seen in contact sports such as football and rugby, but can also occur in non-contact sports like skiing.
Symptoms
Symptoms of the Unhappy Triad include severe pain, swelling, and instability of the knee. The injury is usually diagnosed through a physical examination and confirmed with an MRI.
Treatment
Treatment for the Unhappy Triad typically involves surgery to repair or replace the damaged ligaments, followed by a lengthy period of physical therapy to regain strength and mobility in the knee.
Related Terms
- Anterior Cruciate Ligament
- Medial Collateral Ligament
- Medial Meniscus
- Physical Therapy
- Magnetic Resonance Imaging
External links
- Medical encyclopedia article on Unhappy triad
- Wikipedia's article - Unhappy triad
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