Anatom3DLeft second metacarpal bone
Os metacarpi II sinistrum · Levá druhá záprstní kost
Skeleton
Looks like
The longest palm bone, behind the index finger.
What it does
A fixed, stable pillar of the hand; wrist muscles attach to its base.
Keeping it well
Knuckle fractures here are less common than on the little finger side; they need alignment to keep grip.
Related conditions
- Acromegaly
- Carpal tunnel syndrome
- De Quervain's tenosynovitis
- Dupuytren's contracture & trigger finger
- Fractures
- Fragility fracture
- Frailty & falls in older age
- Ganglion cyst
- Hyperparathyroidism
- Juvenile idiopathic arthritis
- Osteogenesis imperfecta (brittle bone disease)
- Osteomalacia & rickets
- Osteomyelitis (bone infection)
- Osteoporosis
- Paget's disease of bone
- Pseudogout (calcium pyrophosphate disease)
- Raynaud's phenomenon
- Repetitive strain & overuse injury
- Rheumatoid arthritis
- Sarcoma
- Vitamin B1, C and other deficiencies
- Vitamin D deficiency