Anatom3DSynovial sheaths of digits of hand
Vaginae synoviales digitorum manus · Synoviální pochvy prstů ruky
Joints & cartilage
Looks like
Lubricated sleeves around the flexor tendons along the palm side of each finger.
What it does
Let the tendons glide under the pulleys as the fingers bend.
Keeping it well
Infection (flexor tenosynovitis) after a small cut: a swollen, bent, very painful finger is a surgical emergency. Trigger finger also starts here.
Related conditions
- Carpal tunnel syndrome
- De Quervain's tenosynovitis
- Dupuytren's contracture & trigger finger
- Ganglion cyst
- Gout
- Haemophilia & bleeding disorders
- Juvenile idiopathic arthritis
- Lyme disease
- Marfan syndrome & connective tissue disorders
- Osteoarthritis
- Pseudogout (calcium pyrophosphate disease)
- Psoriatic arthritis
- Raynaud's phenomenon
- Repetitive strain & overuse injury
- Rheumatic fever & rheumatic heart disease
- Rheumatoid arthritis
- Systemic lupus erythematosus
- Temporomandibular joint disorder