Anatom3DNavicular bone of left foot
Os naviculare sinistrum · Levá kost loďkovitá
Skeleton
Looks like
A boat-shaped bone on the inner midfoot between the talus and the three cuneiforms; felt as a bump in front of the inner ankle.
What it does
Keystone of the inner arch; the tibialis posterior tendon anchors on it.
Keeping it well
Stress fractures in runners and jumpers are easily missed; vague midfoot pain on activity needs an MRI or CT. An extra bone beside it can be painful.
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