Anatom3DTendon sheath of extensor digiti minimi manus
Vagina tendinis musculi extensoris digiti minimi · Pochva šlachy natahovače malíku
Joints & cartilage
Looks like
The sleeve around the tendon that straightens the little finger, crossing the back of the wrist over the lower forearm joint.
What it does
Lets the tendon glide in its own compartment.
Keeping it well
In rheumatoid arthritis this tendon may fray and snap over a rough ulna, so the little finger drops.
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