Anatom3DLeft fourth metacarpal bone
Os metacarpi IV sinistrum · Levá čtvrtá záprstní kost
Skeleton
Looks like
A slender palm bone behind the ring finger.
What it does
Slightly mobile, it lets the palm cup around objects.
Keeping it well
Can break with a punch, together with the fifth; mostly treated with a splint.
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