Eliminating swelling and painPain, reduced mobility, swelling at the back of the knee? This could be due to a Baker's cyst. For many patients, this condition causes significant limitations to their everyday activity. Often, sufferers also report feelings of numbness, circulatory problems or symptoms of paralysis below the knee.
Our experienced consultants at Schoen Clinic specialise in treating knee cysts. With effective treatment, we are able to eliminate the swelling and therefore your pain.
Causes & symptoms
Baker's cyst of the knee: Causes of the conditionIf the knee joint is inflamed or irritated, the body produces more fluid around the joint. The increased accumulation of knee joint fluid can lead to a condition known as a Baker's cyst: This causes rupture of the inner lining of the knee through the relatively thin, porous joint capsule on the flexion side. Ultimately, this results in the formation of a mucosal tissue sac.
The muscles situated to the side of the peduncle of the Baker's cyst press the tissue together and create a valve mechanism, preventing the return flow of the joint fluid. The cyst increases in size and can in extreme cases rupture in the area of the calf.
Causes may include:
- Rheumatic inflammation of the joint
- The result of bacterial knee inflammation
- Mechanical irritation caused by meniscal damage, loose bodies in the joint, wrinkles in the mucosal tissue, ligament instability, cartilage wear or patellar instability
Baker's cyst of the knee: common symptomsPatients with a Baker's cyst often complain of severe, usually non-inflamed swelling on the inside of the back of the knee. It often reduces maximum flexion of the joint and is accompanied by movement limitation or pain throughout the knee joint.
If the cyst ruptures, there is diffuse swelling of the entire calf and increased sensitivity to pressure with the typical signs of inflammation such as redness, swelling and excessive heat.