Anatom3DLeft lunate
Os lunatum sinistrum · Levá kost poloměsíčitá
Skeleton
Looks like
A half-moon-shaped wrist bone in the middle of the near row, between scaphoid and triquetral.
What it does
Sits under the radius and is central to wrist movement and load transfer.
Keeping it well
It can dislocate after a fall on the hand — often missed — and can lose its blood supply and collapse (Kienböck disease).
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