Anatom3DFifth metatarsal bone
Os metatarsi V · Pátá kost nártní
Skeleton
Looks like
The long bone behind the little toe, with a knob at its base you can feel on the outer foot.
What it does
Supports the outer edge of the foot; the peroneus brevis tendon inserts on its base.
Keeping it well
Its base breaks in ankle twists. A fracture just beyond the base (Jones fracture) heals poorly and may need surgery.
Related conditions
- Acromegaly
- Buerger's disease (thromboangiitis obliterans)
- Bunion & foot deformity
- 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