Anatom3DArticular capsule of knee joint
Capsula articularis articulationis genus · Kloubní pouzdro kolenního kloubu
Joints & cartilage
Looks like
A large, complex capsule around the knee, reinforced by the kneecap tendon at the front and ligaments at the sides and back.
What it does
Encloses the largest joint cavity in the body and its fluid, which feeds the cartilage.
Keeping it well
Fluid inside (knee effusion) follows injury or arthritis. A hot, very swollen knee with fever may be infected and needs urgent care.
Related conditions
- ACL & meniscus injury
- Baker's (popliteal) cyst
- Chronic venous insufficiency
- Gout
- Growing pains
- Haemophilia & bleeding disorders
- Juvenile idiopathic arthritis
- Lyme disease
- Lymphatic filariasis (elephantiasis)
- Lymphoedema
- Marfan syndrome & connective tissue disorders
- Osteoarthritis
- Pseudogout (calcium pyrophosphate disease)
- Psoriatic arthritis
- Reactive arthritis
- Restless legs syndrome
- Rheumatic fever & rheumatic heart disease
- Rheumatoid arthritis
- Septic arthritis
- Systemic lupus erythematosus
- Temporomandibular joint disorder
- Varicose veins