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Baker’s Cyst

What is a Baker’s Cyst? 

A Baker’s cyst is a fluid-filled cyst that causes tightness and bulging behind the knee. 

It tends to get worse during activity, after standing for long periods or when kneeling or squatting. 

It is generally associated with knee arthritis or a meniscal tear that can cause the knee to produce excess fluid leading to the formation of a cyst. 

Note – the symptoms of a Baker’s cyst closely resemble those of a blood clot, so prompt attention is important. 


What are the symptoms of a Baker’s Cyst? 

– Swelling behind the knee and in the calf 
– Knee pain 
– Stiffness and difficulty walking


How is a Baker’s Cyst diagnosed? 

– Generally diagnosed with a physical examination by Dr Herald however ultrasound, X-Ray and MRI can be used to confirm a diagnosis and rule out other conditions. 


What is the treatment for a Baker’s Cyst? 

– Corticosteroid injections may relieve pain and are often performed in conjunction with fluid drainage/needle aspiration usually under ultrasound guidance. 
– Physical therapy such as icing, compression wrap and crutches may be of assistance. 
– If the underlying cause is a meniscal tear or loose body, surgery in the form of an arthroscopy may be recommended.
– Baker’s Cysts associated with osteoarthritis rarely need surgery for the actual cysts, although surgery for the underlying arthritis may help prevent recurrence.