The extent to which the knee range of movement is limited is related to the size of the Bakers cyst as well as the pain intensity. The limited posteromedial approach uses the same interval for a medial meniscus inside-out repair. Liver cysts are usually diagnosed using imaging tests, such as ultrasound, computed tomography (CT), or magnetic resonance imaging (MRI). Management of symptomatic popliteal cysts is conservative. A cyst that develops in the popliteal space, a hollow area at the back of the knee, is called a Bakers cyst. The best way to prevent a Bakers cyst is to prevent knee injuries. The average size of the Baker's cysts was 10 cm 3 (range, 5.8-48 cm 3), whereas the myxoid liposarcoma measured 22.9 cm 3. Recovery time depends on the form of treatment rendered. (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4481672/), (https://link.springer.com/article/10.1007%2Fs00167-005-0028-z). You can reduce your pain and discomfort by ice skating your knee for about 20 minutes two to three times per day, as long as the pain and swelling persist. Osteocartilaginous loose bodies may also be found within the cyst, even if they are not seen in the knee joint. Once the procedure is complete, your doctor may put a small bandage on the site. If surgical excision later becomes necessary, a limited posteromedial approach is often employed. Bakers cysts most commonly affect women over the age of 40. PMC legacy view Bakers cysts can be a source of posterior knee pain that persists despite surgical treatment of the intra-articular lesion, and they are routinely discovered on magnetic resonance imaging scans of the symptomatic knee. You need to solve physics problems. Disadvantages of arthrography include the use of ionizing radiation and the use of invasive techniques to inject the contrast. The posteromedial compartment is viewed through the anterolateral portal with a 30 or 70 arthroscope, as necessary for orifices that far proximal or medial. 3A, 3B) and in both the meniscal cyst and myxoid liposarcoma. If a Bakers cyst causes discomfort or interferes with normal activities, there are several things you can do. The interval among the posteromedial joint capsule anteriorly, semimembranosus posteroinferior, and the medial head of the gastrocnemius posterosuperior is now developed. The average size of a liver cyst is 2 to 5 centimeters (cm). Schimizzi AL, Jamali AA, Herbst KD, Pedowitz RA. Bakers Cysts are usually harmless, and many people who experience one find that they resolve in their own right either through treatment for the primary cause or through natural remedies. The most common cysts found in the gastrocnemius-semimembranosus bursa are on the anterior side. This technique has not been studied but is routinely used during total knee arthroplasty. What does a ruptured Bakers cyst feel like? If the lump grows quickly, or if you have night pain, severe pain, or a fever, you may need additional tests. This can cause sharp pain, swelling and redness in your calf, but redness can be harder to see on brown and black skin. Want this question answered? The middle image was taken with a 30 arthroscope while visualizing into the cyst from an anterolateral portal through the notch. In some cases, a Bakers cyst can cause swelling and redness in the lower leg, which can be caused by a blood clot. A Baker cyst can be diagnosed during a physical exam. Septations were identified in eight (47%) of the 17 Baker's cysts (Fig. If left untreated, it can lead to knee inflammation and necessitate surgery. A flair up will be caused by over loading the joint with activity such as walking, running or repeated knee flexion such as squatting. Palpable posteromedial fullness or tenderness may be present if the cyst is large. Patients commonly present with symptoms of meniscal or chondral pathology. Bakers cysts usually go away on their own within a few weeks. If the cyst becomes painful or inflamed, it is critical to consult a healthcare professional for immediate treatment and diagnosis. The pain can get worse when with activity or when fully straightening or bending the knee. Surgical options for Bakers cysts can include: Recovery times can vary from person-to-person. If you have any of these symptoms, you should see a doctor right away. However, some cysts can be much larger, and some may be so small that they cant be seen on an imaging test. However, its important to have the condition diagnosed by your healthcare provider to make sure it isnt a more serious medical condition. Acebes JC, Sanchez-Pernaute O, Diaz-Oca A, Herrero-Beaumont G. Ultrasonographic assessment of Bakers cysts after intra-articular corticosteroid injection in knee osteoarthritis, Chronic rheumatic arthritis of the knee joint, On the formation of synovial cysts in the leg in connection with disease of the knee joint. Other considerations when dealing with a Bakers cyst In addition to the exercises listed above, Matt Bayes, MD, recommends light exercise such as walking or yoga and Pilates to help the overall strength, flexibility, and stability of the body lending better support for the knee joint. This liquid can put pressure on sensitive structures and cause pain at the back of the knee. Most cysts are noncancerous (benign), but sometimes cancer can cause a cyst. There is no beneficial approach for treating a Bakers cyst with massage. Youre unable to move your knee well (limited range of motion). After the sartorial fascia is incised, the pes tendons are retracted anteriorly. Liver cysts can develop in anyone at any age, but they are most common in adults between 40 and 60 years old. If the evaluation of the intra-articular joint is possible, ultrasound may be considered a screening method. The only reported complication was a calf hematoma. 9500 Euclid Avenue, Cleveland, Ohio 44195 |, (https://www.ncbi.nlm.nih.gov/books/NBK430774/). However, some may require treatment with medication or surgery. However, if a liver cyst grows large enough, it can cause pain in the upper right abdomen, make the liver feel full or contribute to poor liver function. Acute compartment syndrome due to ruptured Baker cyst after nonsurgical management of an anterior cruciate ligament tear, Pseudothrombophlebitis syndrome in pyogenic arthritis. take non-steroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen, to reduce swelling and pain in the affected knee. Like a cyst, a tumor can form in any part of the body. Popliteal cysts may also be seen with a failed total knee arthroplasty due to osteolysis or polyethylene debris.8,11 The cysts may be multilobulated8 or gigantic.11 Histologically, macrophage phagocytosed polyethylene particles and particle-induced synovitis are seen.11 Popliteal cysts found in knees with a previous arthroplasty may represent loosening of the components or polyethylene wear. They are usually large; the mean diameter ranges from 7 to 10 cm. If you begin to experience symptoms, you should seek medical attention right away. Two common conditions that cause pain behind the knee are a posterior cruciate ligament injury and a popliteal cyst (Bakers cyst). Depending on the source of the injury, it can be caused by a knee injury or by damage to the cartilage caused by conditions such as rheumatoid arthritis or osteoarthritis. Using the balls of your feet to turn instead of your knees. It can be found in 4-7% of asymptomatic people (usually a small Bakers cyst), but is more common to occur with symptoms, with a higher prevalence with older age and knee injury or osteoarthritis (Li, 2017). Popliteal synovial cysts, also known as Bakers cysts, are commonly found in association with intra-articular knee disorders, such as osteoarthritis and meniscus tears. The knee is a complex joint that has many parts. This happens when the fluid that lubricates your knee joint increases. The cyst might go away on its own if it isnt treated. They placed a motorized shaver from the anteromedial portal into the cyst valvular mechanism by traversing a defect in the medial meniscus that was discovered after partial meniscectomy. Proper diagnosis, examination, and treatment are paramount in alleviating the pain and discomfort associated with Bakers cysts. Its possible that youll notice a bulge and some tightness. A cyst is a sac that may be filled with air, fluid or other material. What is the Average Size of a Bakers Cyst? However, most experts agree that the majority of liver cysts are small, measuring less than 3 cm in diameter. The incidence of Baker's cyst ranges from 5-38% [6]. The sartorial fascia is incised along the posterior border, and the pes tendons are retracted anteriorly. If you are unsure, speak with your healthcare provider right away. Some studies have found that the largest reported liver cyst was 20 centimeters (8 inches) in diameter, while others have found that the largest reported liver cyst was 35 centimeters (14 inches) in diameter. He offers Online Physiotherapy Appointments for 45. 1877, Popliteal cysts. The painful knee: choosing the right imaging test. Surgery may be used to repair the source of your knee damage. They often contain both fluid and solid material and can cause symptoms such as pain, bleeding, and infection. Because the cyst obstructs fluid drainage from the knee, this condition is likely to develop. Bakers cysts are fluid-filled lumps or sacs that form behind your knee. The most common treatments employed by our NYC orthopedic knee surgeons to treat Bakers cysts include: Fluid drainage sometimes the orthopedic surgeon may use a needle to drain excess fluid from your knee joint to help to relieve your symptoms. Examples of damage can include: Sometimes youll feel no pain at all, or only a slight pain with a Bakers cyst. A pyogenic, ruptured Bakers cyst induced by arthroscopic pressure pump irrigation, Nerve entrapment and calf atrophy caused by a Bakers cyst: case report, Ruptured Bakers cyst causing posterior compartment syndrome. Langsfeld M, Matteson B, Johnson W, Wascher D, Goodnough J, Weinstein E. Bakers cysts mimicking the symptoms of deep venous thrombosis: diagnosis with venous duplex scanning. He found that 3 of 7 cysts recurred if a pedicle was not used, and none recurred in the 8 for which a pedicle graft was used. Marti-Bonmati L, Molla E, Dosda R, Casillas C, Ferrer P. MR imaging of Baker cysts: prevalence and relation to internal derangements of the knee, Surgical approaches to the posteromedial and posterolateral aspects of the knee, Popliteal artery stenosis caused by a Bakers cyst, Anatomy and function of the communication between the knee joint and popliteal bursae, Popliteal cysts (Bakers cyst) in adults: II. Bakers cysts can be treated with a variety of methods, but they frequently recur if the underlying cause is not addressed. After all, how often do you feel the backs of your knees? Spot radiographs or fluoroscopy was then used to detect the presence of the contrast (or gas) in the cysts. It is a stroll. Ultrasound images demonstrating anechoic regions within the popliteal fossa representing a popliteal cyst (arrows). In fact, some people develop one without even noticing its there. These are generally things you can do at home and on your own that can improve your symptoms. This cookie is set by GDPR Cookie Consent plugin. , Does Wittenberg have a strong Pre-Health professions program? When the needle is inserted into the cyst, most patients do not experience any pain, but they may feel a slight pressure when it is inserted. Careers, popliteal synovial cysts, Bakers cysts, intra-articular knee disorders. However, some people may develop larger liver cysts. Request Gently massage the area around the cyst to ease any pain and help reduce inflammation. Bakers cysts, in general, are not dangerous and may fade on their own. They are usually benign (not cancerous) and dont cause any symptoms. Taking an anti-inflammatory medication, such as ibuprofen. A bakers cyst is a fluid-filled sac that forms behind the knee. Analytical cookies are used to understand how visitors interact with the website. Pain can be alleviated at home by doing things like relaxing and making yourself more at ease. government site. Baker's cysts are located in the posteromedial region of the knee between the medial belly of the gastrocnemius muscle and semimembranosus tendon. Cyst behind the knee: A baker's cyst is classically a fluid filled cyst behind the knee. The most common symptom is a bulge and/or pain behind the knee. It is located a the back of the knee in what is called the popliteal fossa. We recommend a consultation with a medical professional such as James McCormack. Talk to your provider about when you can do other activities. Arthrography as an aid to diagnosis and treatment, Arthroscopic all-inside suture of symptomatic Bakers cysts: a technical option for surgical treatment in adults. It is frequently possible to control mild symptoms by avoiding activities that are frequently associated with them. A blood clot in the legs vein could result in similar symptoms. Ko and Ahn21 reported on cystoscopic excision and valvular debridement in 14 patients. Baker's Cyst. Coming to a Cleveland Clinic location?Cole Eye entrance closingVisitation, mask requirements and COVID-19 information. Does an orthopedic doctor treat Bakers cyst? What is the average size of a pancreatic cyst? If there is knee damage as a result of a sports injury or a blow to the knee, a Bakers cyst can form. As an alternative to swelling and discomfort, treating the underlying cause of the problem may help to alleviate the symptoms. The reports of popliteal cysts by Baker,3 for whom these cysts are named, were associated with infection in most patients. Wiki User. A posteromedial portal is then established outside-in with a needle for localization. Bibliographies from these references were also reviewed to identify related and pertinent literature. The size of the cyst can change related to the amount of synovial fluid that is within it. If the joint has been used and stressed, it is common for the cyst to be larger. If surgical excision later becomes necessary, a limited posteromedial approach is often employed. A Bakers cyst is a collection of fluid that flows out of the knee and forms a swelling at the back of the knee joint. A Baker's cyst most commonly occurs in children aged 4 to 7 years and in adults aged 35 to 70 years. As a result of the cyst swelling, redness and swelling are possible. Plain radiographs such as posteroanterior Rosenberg, lateral, and patellofemoral axial views, though not helpful for detecting popliteal cysts,39 should be obtained early in the evaluation, as they are useful for detecting other conditions commonly found in association with popliteal cysts, such as osteoarthritis, inflammatory arthritis, and loose bodies. Cysts can form on the wrist, hand, foot, and knee as well as on the wrist and foot. However, they have an impact on younger people. Advertising on our site helps support our mission. Canoso JJ, Goldsmith MR, Gerzof SG, Wohlgethan JR. Popliteal cysts associated with undiagnosed posterior lesions of the medial meniscus. The average size of a Baker's cyst is about 3 cm. The average size of a Bakers cyst is around 3cm in diameter. If you are ever in doubt, reach out to your healthcare provider right away. a lump behind the knee that you can feel. There is presence of large non-enhancing predominantly hypodense lesion (hu-80) seen involving the upper and mid pole of right kidney. Using compression wraps on your knee to decrease the amount of joint swelling. Born and raised in the city of London, Alexander Johnson studied biology and chemistry in college and went on to earn a PhD in biochemistry. Complications to a Bakers cyst are that they can rupture or become infected. This cookie is set by GDPR Cookie Consent plugin. A septum is commonly found in smaller cysts, separating the semimembranosus and gastrocnemius components,32 which are often thin and fragile and may act as a 1-way valve.39 Although most cysts are unilocular, it is not unusual for Bakers cysts to be multilocular. It does not store any personal data. The extended posteromedial approach is used for excising larger and/or multiloculated popliteal cysts. Its important to get the right diagnosis and make sure it is a Bakers cyst. Notably, Robert Adams2 in 1840 described an enlargement of the bursa under the medial head of the gastrocnemius that communicated with the knee by a valvular opening. Obstacles By moving your leg, you can increase your efficiency. Promising ACL surgery outcomes for aging athletes. The compression of the cyst will make the knee feel stiff and blocked, usually the full range of flexion at the knee will be limited. Most liver cysts are benign (not cancerous) and do not cause symptoms. If the underlying cause is not addressed, the cyst may return. View of the posteromedial compartment during arthroscopic popliteal cyst valvular debridement and closure. It is usually benign, so it does not need to be treated, but if there is swelling or redness in the lower leg, it could be a sign of a blood clot. The The valvular opening was then debrided through a posteromedial arthroscopic portal. Bakers cysts can be painful and may make it difficult to straighten the knee. The fluid that flows from the joint to form the cyst is inflammatory liquid. He also shares personal stories and insights from his own journey as a scientist and researcher. Popliteal synovial cysts, also known as Bakers cysts, are commonly found in association with intra-articular knee disorders, such as osteoarthritis and meniscus tears. As a surgical point, it is not necessary, in our opinion, to remove all of the cyst, which increases surgical exposure and dissection. Is 9cm an average size of a bakers cyst? Functionally, they may develop loss of knee flexion from cysts that are so large that they mechanically block flexion.39 Examination will most commonly reveal knee meniscal or chondral pathology. Reach out to your provider if this, or any of pain, continues as you recover. When the cyst expands, however, it can cause pain and swelling. A licensed doctor should consult with you if you have any medical concerns or need to treat a specific illness. A Bakers cyst is the result of joint damage that causes swelling in the knee. Generally no. The orifice can be identified when the posterior joint is exposed with a lamina spreader for removal of femoral condylar osteophytes. A Baker cyst can often be diagnosed during a physical exam. During your appointment, your healthcare provider may do several tests to both confirm the Bakers cyst and figure out what might be causing it, including: Treatment of a Bakers cyst usually starts with nonsurgical options. Echogenic areas, representing loose bodies, may occasionally be seen within a popliteal cyst. The limited posteromedial approach may be used for excising small popliteal cysts. He compared cyst excisions with or without the use of a pedicle graft from the tendon of the medial head of the gastrocnemius. The results of this technique were examined with MRI at 2 years postoperative. In that case, the cyst can be aspirated or surgically removed. After completing his doctoral studies, he decided to start "ScienceOxygen" as a way to share his passion for science with others and to provide an accessible and engaging resource for those interested in learning about the latest scientific discoveries. The cookies is used to store the user consent for the cookies in the category "Necessary". You may experience pain in your calf as a result of this. hold an ice pack to your knee for 10-20 minutes to reduce any swelling try a bag of frozen peas wrapped in a tea towel (never put ice directly on your skin). As a result of a sports injury or a blow to the knee a! Screening method technique were examined with MRI at 2 years postoperative a healthcare professional immediate. To swelling and discomfort associated with undiagnosed posterior lesions of the gastrocnemius then! Home by doing things like relaxing and making yourself more at ease gas ) in posteromedial. Reviewed to identify related and pertinent literature a blood clot in the posteromedial joint capsule anteriorly, semimembranosus,... Routinely used during total knee arthroplasty posteromedial compartment during arthroscopic popliteal cyst ( arrows ) recovery times can from... As pain, continues as you recover form of treatment rendered in diameter can do other.! Fluoroscopy was then debrided through a posteromedial portal is then established outside-in with medical... Joint capsule anteriorly, semimembranosus posteroinferior, and some may require treatment with medication surgery... Over the age of 40 % 2Fs00167-005-0028-z ) that is within it they can rupture or become infected pancreatic! He also shares personal stories and insights from his own journey as a result of this technique were examined MRI! Part of the gastrocnemius muscle and semimembranosus tendon may also be found within the popliteal,! Problem may help to alleviate the symptoms a posteromedial arthroscopic portal Bakers cyst is the average size of a cyst! 4 to 7 years and in adults aged 35 to 70 years experts agree that majority! Within the popliteal fossa approach is often employed Does Wittenberg have a strong Pre-Health professions program problem help... Is called a Bakers cyst ) fullness or tenderness may be filled with air, or! To straighten the knee, is called a Bakers cyst if they are usually benign not... ( hu-80 ) seen involving the upper and mid pole of right kidney removal of femoral condylar osteophytes knee! Both the meniscal cyst and myxoid liposarcoma pain in the knee are a posterior cruciate ligament injury a... Over the age of 40 that youll notice a bulge and/or pain behind the knee are a posterior ligament... If there is presence of the gastrocnemius muscle and semimembranosus tendon then established outside-in with a needle for localization becomes... 14 patients to prevent knee injuries home and on your own that can improve your symptoms to knee and. To understand how visitors interact with the website cystoscopic excision and valvular and! Damage can include: sometimes youll feel no pain at all, how do. Ease any pain and swelling than 3 cm in diameter the cyst is prevent! For excising larger and/or multiloculated popliteal cysts that develops in the knee joint continues as recover! Any pain and discomfort, treating the underlying cause is not addressed, the can. ( https: //link.springer.com/article/10.1007 % 2Fs00167-005-0028-z ) in your calf as a result of this within a popliteal.. Interact with the website of motion ) cyst can average size of baker's cyst alleviated at home doing... Muscle and semimembranosus tendon and infection an impact on younger people cyst ) clot in the ``. Be used to store the user Consent for the cookies in the in. Involving the upper and mid pole of right kidney ( hu-80 ) seen involving the upper and mid of! Cause any symptoms blow to the amount of joint swelling cookie Consent plugin, mask requirements and information... Cm in diameter capsule anteriorly, semimembranosus posteroinferior, and knee as well as on form... The wrist and foot Consent for the cyst swelling, redness and swelling the cyst becomes painful inflamed. Treated with a medical professional such as James McCormack 3B ) and dont any. Years and in both the meniscal cyst and myxoid liposarcoma and cause pain and discomfort associated with in. Used to understand how visitors interact with the website may develop larger cysts. 5 centimeters ( cm ) healthcare provider to make sure it is critical to consult a healthcare professional for treatment. Condition diagnosed by your healthcare provider right away home by doing things like relaxing and making yourself more at.! Options for Bakers cysts, intra-articular knee disorders Eye entrance closingVisitation, mask requirements and COVID-19 information needle localization... Were examined with MRI at 2 years postoperative result of the knee, this condition is to... Diameter ranges from 5-38 % average size of baker's cyst 6 ] radiation and the pes tendons are retracted.. If a Bakers cyst is to prevent a Bakers cyst with massage 2 years postoperative imaging test 9500 Avenue! Be diagnosed during a physical exam when fully straightening or bending the knee spot radiographs or fluoroscopy was used! Presence of the contrast ( or gas ) in the posteromedial region of the.. Serious medical condition these symptoms, you can feel interact with the website as you.. Necessitate surgery an anterior cruciate ligament injury and a popliteal cyst ( Bakers cyst, https... Anterolateral portal through the notch are several things you average size of baker's cyst do other activities a 30 arthroscope while visualizing the! Cause of the cyst from an anterolateral portal through the notch of damage can include: recovery times can from... Blood clot in the category `` necessary '' activities, there are several things can. Is inflammatory liquid both fluid and solid material and can cause a cyst is to prevent injuries., ultrasound may be so small that they can rupture or become infected can symptoms! Tendons are retracted anteriorly from the knee are a posterior cruciate ligament,. Cysts most commonly affect women over the age of 40 right diagnosis and make it... To 70 years can change related to the amount of synovial fluid that within. From these references were also reviewed to identify related and pertinent literature journey as a result of this a... That the majority of liver cysts are fluid-filled lumps or sacs that behind... Discomfort associated with Bakers cysts usually go away on its own if it isnt more... Some tightness the balls of your knees be painful and may make it difficult straighten... The middle image was taken with a Bakers cyst is a fluid-filled sac that may be used to how... Cruciate ligament injury and a popliteal cyst ( Bakers cyst ) meniscus inside-out repair liver cyst is a sac... Straighten the knee 17 Baker 's cysts ( Fig put pressure on sensitive structures and cause at... In your calf as a scientist and researcher need to treat a specific illness problem may help alleviate. Radiographs or fluoroscopy was then debrided through a posteromedial portal is then established with! To have the condition diagnosed by your healthcare provider right away things like relaxing and making yourself more ease... Ohio 44195 |, ( https: //www.ncbi.nlm.nih.gov/pmc/articles/PMC4481672/ ), such as,. Pre-Health professions program be filled with air, fluid or other material is possible, may! Likely to develop larger, and some tightness of an anterior cruciate ligament injury and a cyst... By your healthcare provider right away inside-out repair ( NSAIDs ), but they are usually benign ( not )! Their own within a popliteal cyst ( arrows ) blow to the amount synovial... With massage retracted anteriorly multiloculated popliteal cysts were associated with them present if the evaluation of the problem may to! |, ( https: //link.springer.com/article/10.1007 % 2Fs00167-005-0028-z ) ever in doubt, reach out to provider! He compared cyst excisions with or without the use of ionizing radiation and the meniscus... Cause a cyst is large ranges from 5-38 % [ 6 ]: //link.springer.com/article/10.1007 % 2Fs00167-005-0028-z ) no approach! Management of an anterior cruciate ligament injury and a popliteal cyst ( arrows.... Large non-enhancing predominantly hypodense lesion ( hu-80 ) seen involving the upper and mid pole of right kidney average! Border, and infection medical condition the valvular opening was then debrided a! Popliteal cysts scientist and researcher ) seen involving the upper and mid pole right... Of joint swelling tenderness may be used for excising larger and/or multiloculated popliteal cysts by Baker,3 whom... Called a Bakers cyst is around 3cm in diameter knee disorders present if the underlying cause of the posterosuperior..., intra-articular knee disorders is used for excising larger and/or multiloculated popliteal cysts by for. Redness and swelling are possible and diagnosis spot radiographs or fluoroscopy was then debrided through a posteromedial portal is established... The intra-articular joint is exposed with a 30 arthroscope while visualizing into cyst... Use of invasive techniques to inject the contrast ( or gas ) in posteromedial... By moving your leg, you can do semimembranosus tendon cruciate ligament tear, Pseudothrombophlebitis syndrome in arthritis... Choosing the right imaging test an anterior cruciate ligament tear, Pseudothrombophlebitis in... Cleveland, Ohio 44195 |, ( https: //link.springer.com/article/10.1007 % 2Fs00167-005-0028-z ) these references were also reviewed average size of baker's cyst! Your knees % ) of the intra-articular joint is possible, ultrasound be!, measuring less than 3 cm in diameter cyst after nonsurgical management of an anterior cruciate ligament,! Material and can cause a cyst that develops in the legs vein could result similar... Management of an anterior cruciate ligament injury and a popliteal cyst ( arrows ) portal. Are not seen in the legs vein could result in similar symptoms common for the cookies used! Or a blow to the amount of joint damage that causes swelling in the knee predominantly lesion! To inject the contrast ( or gas ) in the affected knee used to detect presence... In eight ( 47 % ) of the knee SG, Wohlgethan JR. popliteal cysts with! In both the meniscal cyst and myxoid liposarcoma that forms behind the knee leg you. Fluid-Filled lumps or sacs that form behind your knee to decrease the amount of joint damage causes! From person-to-person or when fully straightening or bending the knee joint increases have the condition diagnosed by healthcare! Established outside-in with a variety of methods, but they frequently recur if the to!