Baker’s cyst refers to a persistent swelling which develops in the back of the knee, also referred to as Popliteal synovial cyst. Mostly seen in orthopaedic practices, they are routinely discovered in 38% of MRI scans performed on symptomatic knees (Frush and Noyes, 2015).
A Baker’s cyst most commonly develops following an intra-articular knee disorder or an injury to a structure within the knee joint, such as osteoarthritis and meniscus tears (Frush and Noyes, 2015). When this injury is left untreated it can result in ongoing swelling, which can develop into a Baker’s cyst behind the knee. Latest research by Frush and Noyes (2015) affirms that there is a natural opening to the semimembranosus- medial head gastrocnemius bursa, which as a result can lead to a popliteal cyst in the presence of chronic knee effusions resulting from a intra-articular pathology. When this injury is left untreated it can result into ongoing swelling.
Mild condition of a Baker’s cyst can resolve with RICE (rest, ice, compress and elevate).
Resolving biomechanical dysfunctions of the knee is the main key for this pathology, in order to prevent the condition from arising again. Therefore non-surgical treatment includes leg axis training, strength and proprioceptive training to release “wrong pressure” on the structures and tissue.
Surgical removement or draining of a Baker’s cyst is connected with a high probability in either re-filling or re-growing.
Frush T.J. and Noyes F. R., 2015, Baker’s Cyst: Diagnostic and Surgical Considerations, Sports Health, 7(4), pp: 359-365