A Baker's cyst (also known as a popliteal cyst) is a fluid-filled swelling that forms behind the knee. It is usually caused by an underlying problem within the knee joint, such as arthritis or a cartilage tear, that leads to excess production of joint (synovial) fluid. This fluid can accumulate and bulge into the back of the knee, forming the cyst.
Signs & Symptoms:
- Swelling behind the knee
- Knee stiffness or tightness
- Pain behind the knee or in the calf (especially when extending or flexing)
- Limited range of motion
- Occasionally, redness and warmth (if ruptured)
Contributing Factors:
- Osteoarthritis
- Rheumatoid arthritis
- Meniscus tears
- Gout
- Knee injuries (misalignment)
- Synovitis (inflammation of the joint lining)
Complications:
- Rupture of the cyst, leading to fluid leakage into the calf, which can mimic deep vein thrombosis (DVT) with swelling, redness, and pain.
- Chronic swelling and discomfort if untreated
Initial Recommendations:
- Rest and avoid aggravating activities
- Ice and compression
- Elevation of the leg
- Strengthening and mobility exercises
Chiropractic Care:
- Chiropractic treatment is a beneficial part of managing a Baker's cyst, focusing on addressing biomechanical issues and promoting overall knee health. While it doesn't directly remove the cyst (which is a fluid-filled sac), chiropractic care can help reduce pain, inflammation, and swelling associated with the cyst by improving joint alignment and function.
- Joint Alignment and Biomechanics: Chiropractors can assess and correct misalignments in the knee and surrounding joints (hip, ankle) that may be contributing to the Baker's cyst or exacerbating its symptoms.
- Pain Reduction: Gentle adjustments and soft tissue techniques can help alleviate pain and discomfort associated with the cyst.
- Inflammation Reduction: By improving joint function and addressing underlying issues, chiropractic care can help reduce inflammation and swelling around the knee. Chiropractic is also an effective treatment for arthritis, so if that is the cause of the cyst, regular chiropractic care can help considerably. Once the underlying condition is corrected, the cyst often goes away on its own.
Other Notes:
- Not all Baker’s cysts need treatment—if asymptomatic, they can be observed.
- Recurrent cysts often indicate untreated underlying joint pathology.

