Anatom3DProximal phalanx of left thumb
Phalanx proximalis pollicis sinistri · Základní článek levého palce ruky
Skeleton
Looks like
The first of the two bones of the thumb, between the metacarpal and the tip bone.
What it does
Carries the thumb tendons and forms the knuckle joints at both ends.
Keeping it well
The ligament on its inner side tears in falls onto a pole or ski (skier's thumb); a loose painful thumb joint needs assessment.
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)
- Psoriatic arthritis
- Raynaud's phenomenon
- Repetitive strain & overuse injury
- Rheumatoid arthritis
- Sarcoma
- Vitamin B1, C and other deficiencies
- Vitamin D deficiency