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What Is Os Fabella?

David Miller • • 6 min read
What Is Os Fabella?

The fabella is a sesamoid bone

sesamoid bone
The sesamoid is a small nodular bone most often present embedded in tendons in the region of the thumb. Calcification of sesamoid bone is one of the important features of pubertal growth spurt, which is earlier in females than in males. Absence of sesamoid bone indicates delay in reaching puberty.
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in the posterolateral capsule of the human knee joint. The presence of the fabella in humans varies widely and is reported in the literature to range from 20% to 87% [1-7]. The fabella is located in the posterior aspect of the knee where lines of tensile stress intersect.

What does the fabella do?

The fabella's main function is thought to be stabilization of the medial femoral condyle and the fabella complex, which is made up of the plantaris and gastrocnemius muscles and the arcuate, fabellofibular, fabellopopliteal, and oblique popliteal ligaments [1-3].

How do I know if I have fabella bone?

Medical professionals search for the fabella bone by palpating at the back of the knee and checking for swelling or tenderness in the surrounding area. If they believe the fabella is indeed the reason, an ultrasound or magnetic resonance imaging (MRI) is used to confirm their diagnosis.

David Miller
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David Miller

David Miller brings 15 years of experience in global economics, personal finance strategy, and market dynamics. He specializes in turning complex economic trends into actionable insights for everyday readers.