Most common cause of Rupture of Tendon is
**Core Concept**
The most common cause of tendon rupture is a sudden, forceful contraction of the muscle attached to the tendon, leading to a tear in the tendon's structure. This is often seen in the context of a pre-existing condition such as a degenerative disease, previous injury, or a systemic condition that affects tendon health.
**Why the Correct Answer is Right**
The mechanism of tendon rupture often involves a combination of factors, including the type and severity of the muscle contraction, the presence of pre-existing conditions, and the overall health of the tendon. In many cases, a sudden, forceful contraction of the muscle can cause a rupture of the tendon, particularly in areas such as the Achilles tendon or rotator cuff. This is often seen in individuals with underlying conditions such as tendinosis or tendinitis, where the tendon is already weakened and more susceptible to rupture.
**Why Each Wrong Option is Incorrect**
* **Option A:** Inflammation or infection of the tendon, while it can cause pain and swelling, is not typically a direct cause of tendon rupture.
* **Option B:** A direct blow to the tendon can cause a rupture, but it is not the most common cause. Sudden, forceful contractions are more common.
* **Option C:** Degenerative diseases such as osteoarthritis can contribute to tendon rupture by weakening the tendon, but they are not the primary cause.
**Clinical Pearl / High-Yield Fact**
Tendon rupture can often be prevented by maintaining good muscle strength and flexibility, especially in areas prone to tendon degeneration. This can be achieved through regular exercise and physical therapy.
**Correct Answer: B. Sudden, forceful contraction of the muscle attached to the tendon.**