Anatom3DSesamoid bone of foot
Ossa sesamoidea pedis · Sezamské kůstky nohy
Skeleton
Looks like
Small bean-shaped bones inside tendons, chiefly two under the head of the first metatarsal in the ball of the foot.
What it does
Act like pulleys that increase tendon leverage and absorb weight at the ball of the big toe.
Keeping it well
Can inflame or fracture (sesamoiditis) in runners and dancers; a split sesamoid on X-ray may be normal.
Related conditions
- Acromegaly
- Buerger's disease (thromboangiitis obliterans)
- Chronic venous insufficiency
- Clubfoot (talipes equinovarus)
- Flat feet (pes planus)
- Fractures
- Fragility fracture
- Frailty & falls in older age
- Ganglion cyst
- Gout
- Hammer toe and claw toe
- Hyperparathyroidism
- Lymphatic filariasis (elephantiasis)
- Lymphoedema
- Morton's neuroma
- Osteogenesis imperfecta (brittle bone disease)
- Osteomalacia & rickets
- Osteomyelitis (bone infection)
- Osteoporosis
- Paget's disease of bone
- Restless legs syndrome
- Sarcoma
- Varicose veins
- Venomous snakebite
- Vitamin B1, C and other deficiencies
- Vitamin D deficiency