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The sesamoid bones of the foot are the pair of small, oval, nodule-like bones found along the plantar aspect of the great toe. The two distal tendons of the flexor hallucis brevis muscle each contain one of these sesamoid bones.
There are two small ball-shaped sesamoid bones at the base of the big toe, near the joint between the 1st metatarsal and the proximal phalanx of the big toe. These bones act as the attachment point for multiple tendons and help with the movement of the big toe.
Sesamoid bones can be found on joints throughout the human body, including: In the knee—the patella (within the quadriceps tendon). This is the largest sesamoid bone. [4] In the hand—two sesamoid bones are commonly found in the distal portions of the first metacarpal bone (within the tendons of adductor pollicis and flexor pollicis brevis).
Sesamoid bones are small more or less rounded masses embedded in certain tendons and usually related to joint surfaces. Their functions probably are to modify pressure, to diminish friction, and occasionally to alter the direction of a muscle pull.
5 wrz 2013 · This review describes an overview of the anatomy of sesamoids and accessory ossicles in the foot, and provides a pictorial review of their pathological conditions, including trauma, sesamoiditis, osteomyelitis, osteoarthritis and pain syndromes.
7 maj 2014 · The most common site of sesamoid bone in foot was in the first metatarsal joint (96.4%) whereas the sesamoid bone in knee joint, fabella was found in 12.3% of total cases.
4 kwi 2023 · A sesamoid bone is a small bone commonly found embedded within a muscle or tendon near joint surfaces, existing as focal areas of ossification and functioning as a pulley to alleviate stress on that particular muscle or tendon.
