what causes air bubbles in synovial fluid what causes air bubbles in synovial fluid

"Naturally, this Upgrade to Patient Pro Medical Professional? Consult a doctor or other health care professional for diagnosis and treatment of medical conditions. Sometimes, however, there is an underlying problem, for example, tissue damage or lesions. The popping or cracking sound that happens when we crack your knuckles is caused by popping bubbles in your synovial fluid, which is responsible for lubricating your joints. It also contains the gases oxygen, nitrogen and carbon dioxide. Inflammation is the body's response to injury or infection. Using a level sensor will prevent the system from getting to this point avoiding a full production reset. Supplements that are good for your joints include: Even natural treatments can cause unwanted side effects and drug interactions, and they may not be safe for everyone. Other people may or may not be able to hear the sound. But the satisfaction is mostly in your head. They won't cure joint conditions, but they might help alleviate your pain. Serious complications, such as infection and bleeding may happen, but are uncommon. All with the support of our first class customer service team. Song, S. J., Park, C. H., Liang, H., & Kim, S. J. In some cases the production chamber can also be placed into a vacuum or centrifuge to remove bubbles ahead of production. As you age, you'll have synovial fluid. Read on to find out more about why crepitus happens and what to do about it. This gas increases the joint volume by 15 to 20 percent; it consists mostly (about (2018, March). Often, say the researchers, reassurance and rehabilitation are enough. It is a common source of knee pain in young people and athletes. We asked Dr. Robert Klapper, orthopaedic surgeon and co-director of the Joint Replacement Program, to explain what actually happens when you hear your joints snap, crack, and pop. 1. Platelet-rich plasma versus hyaluronic acid for knee osteoarthritis: a systematic review and meta-analysis of randomized controlled trials. These issues may need medical attention. Ask a Doctor: Is Cracking Your Knuckles Bad? She explains that the upper spine contains delicate arteries and nerves, making it an area to be cautious about manipulating. Cracking your own knuckles is relatively safe but you could cause serious damage if you crack your neck or back on your own. Anti-inflammatory medication and physical therapy exercises can also relieve it. If you have a lot of joint pain or limited movement, you may benefit from working with a physical therapist. Once the volume of the capsule is restored to original [8], The common claim that cracking one's knuckles causes arthritis is not supported by scientific evidence. (3) These bubbles are not able to escape the joint capsule, but sometimes (because the joint is under pressure or being moved) the bubbles collapse back into the synovial fluid. Verywell Health's content is for informational and educational purposes only. Production managers using too much fluid will often find that its properties have changed significantly after just a few short days, with production processes having to be altered to suit and then re-altered to accommodate a fresh batch of fluid - whereupon the process starts all over again. Zhang SL, Liu HQ, Xu XZ, Zhi J, Geng JJ, Chen J. WebCommon Culprits. Often, however, crepitus that follows an injury or surgery is not serious. URL of this page: https://medlineplus.gov/lab-tests/synovial-fluid-analysis/. Painful joint popping can be a symptom of early stage arthritis, tendinitis, or bursitis. Radiopaedia.org; c2005-2020. [17] The study concluded that knuckle-cracking did not cause hand osteoarthritis, no matter how many years or how often a person cracked their knuckles. Cracking is caused by synovial gas pressure changes within our joints due to sudden movements. If you have a joint problem, extra fluid can build up, causing pain, stiffness, and inflammation. Am J Sports Med. Archived post. One simple area that is often overlooked however is the fluid tubing itself. If crepitus occurs with pain, this can be an early sign of osteoarthritis (OA) of the knee. You may also hear, or feel, clicking or grating when you move your head. Synovial fluid analysis. When cartilage, Corticosteroid injections may relieve pain in people with osteoarthritis of the knee. MNT is the registered trade mark of Healthline Media. This happens when a joint moves and causes the tendon to change position; it may make a snapping sound when it pops back into place. Can I use the ideal gas law to show this inverse proportionality even though we're not dealing with ideal gasses?). This cartilage rubs against the end of the femur in the trochlear area. It often happens naturally as we move around so if you roll over in bed and hear a few clunks, it's generally nothing to worry about.". Regular exercise, a healthy diet, nutritional supplements, and joint injections may all help improve or increase synovial fluid and decrease joint pain and inflammation. Diagrammatic section of a diarthrodial joint.https://en.wikipedia.org wiki Joint_capsuleJoint capsule - Wikipedia changes when the joint is stretched beyond its normal range of motion, creating a vacuum and forming a bubble from gases being dissolved in the fluid. (2018, August 1), Brakke, R. (2016, May 2). How Viagra became a new 'tool' for young men, Ankylosing Spondylitis Pain: Fact or Fiction, American Academy of Orthopaedic Surgeons (AAOS), American Association of Orthopedic Surgeons (AAOS), https://orthoinfo.aaos.org/en/diseases--conditions/arthritis-of-the-knee/, https://www.cdc.gov/arthritis/data_statistics/arthritis-related-stats.htm, http://www.arthritis-health.com/types/general/crepitus-knee, https://www.arthritis-health.com/types/general/what-crepitus, http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3942608/, http://orthoinfo.aaos.org/topic.cfm?topic=A00680, http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3549188/, https://orthoinfo.aaos.org/en/staying-healthy/knee-exercises/, http://orthoinfo.aaos.org/topic.cfm?topic=a00358, http://orthoinfo.aaos.org/topic.cfm?topic=a00227, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5851845/, http://www.oarsijournal.com/article/S1063-4584(14)00048-X/fulltext, New clues to slow aging? "Pain, swelling, or limited motion are signs that the joint has damagepossibly from arthritis, trauma, or gout," says Dr. Klapper. If a person has an early diagnosis of OA, the Osteoarthritis Foundation suggest using nonsurgical options to slow the progression, maximize mobility, and improve strength. The pressure inside the joint cavity drops and the dissolved gas suddenly comes out of solution and takes gaseous form which makes a distinct popping noise. It can affect one or both knees. Aug 13, 2018 You've probably heard the old saying that cracking your joints gives you arthritis - but is there any truth in it? 8. Jacksonville (FL): The Nemours Foundation; c19952020. [11] The contents of the resultant gas bubble are thought to be mainly carbon dioxide, oxygen and nitrogen. 2013;14:24. doi:10.1186/1471-2474-14-24, Bureau NJ. Always check with your healthcare provider before taking nutritional supplements. Available from: Kids Health from Nemours [Internet]. A type of arthritis, such as osteoarthritis, rheumatoid arthritis, or gout. Thank you, {{form.email}}, for signing up. Web. When your joints get stiff, it usually means that small gas bubbles or pockets have formed in the synovial fluid, the fluid that lines and surrounds joints to allow for smooth, friction-free movement, Rohach explained. Rochester (NY): University of Rochester Medical Center; c2020. (Osteoarthritis, the more common form of the arthritis, does not involve this type of inflammatory response.). Patients who dont respond to these treatments may be referred to an orthopedic surgeon to discuss a synovectomy, a procedure in which much of the synovium is removed. Crepitus can also be a sign of a torn meniscus. Air then enters the dip tube travelling through the feed line to the dispensing/spraying head. Another reason for crepitus after surgery is arthofibrosis, or the development of scar tissue. WebTiny air bubbles were also identified as leaking from the vacuum discs from L3-L4 through L5-S1. This is seen commonly in a condition known as snapping hip syndrome, also known as dancer's hip.. Or that the number of noises you hear when you twist, pull, and bend your fingers reveals how many people are in love with you? According to Dr. Klapper, synovial fluid lubricates your joints like motor oil in a car's engine, reducing friction and preserving our cartilage. "It can damage the vertebral discs between the bones of the spine, cause damage to the spinal cord or cause damage to the major blood vessels which run between the bones of the neck to our brains.". Ulna Tendon Pain: Causes of ECU Tendon Problems, Clinical Inquiry: Does knuckle popping lead to arthritis, Bilateral and multiple cavitation sounds during upper cervical thrust manipulation, Sonographic evaluation of snapping hip syndrome. Once the needle is in place, your provider will withdraw a sample of synovial fluid and collect it in the syringe of the needle. Your ligaments can be tight and may pop when you suddenly move or rotate at an unusual angle. Causes of joint problems include: You may need this test if you have symptoms of a joint disorder. A sudden increase in physical activity, such as exercising more frequently, or running further or on rougher terrain than usual, can also cause it. On automated or fast-moving production lines, the level of fluid can inadvertently drop below the dip tube. More studies need to be done to make sure this treatment works as suspected. If the person experiences pain and stiffness after an injury or surgery, they should see a doctor. The knee is the largest joint in the body. Bubbles of nitrogen, a component of this fluid, can form in your joints. 2023 Cedars-Sinai. Egton Medical Information Systems Limited has used all reasonable care in compiling the information but make no warranty as to its accuracy. Interdiscip Toxicol. But if the constant cracking is coupled with consistent pain or swelling, that can be a sign that something is wrong. A meniscus can tear during sports activities, such as when a person twists their knee. Read our, Dietary Changes That Increase Synovial Fluid, Nutritional Supplements That Increase Synovial Fluid, Medical Treatments That Increase Synovial Fluid, What To Do When You Have No Cartilage in Your Knee, Water on the Knee (Effusion) Causes and Treatments, Intra-Articular Injections to Treat Joint Disorders. The information on this site should not be used as a substitute for professional medical care or advice. Does Cracking Your Knuckles Cause Arthritis? As OA progresses, treatment through medication or even knee replacement surgery may be necessary. Patient does not provide medical advice, diagnosis or treatment. The American Academy of Orthopaedic Surgeons (AAOS) explain that, when the meniscus tears, the individual may experience a popping sensation. Nitrogen Bubbles The tissues of your joints normally make synovial fluid to lubricate the surrounding area, protecting them from abrasion as you move. It can also result if a part of the persons knee is badly aligned. This happens when the joint cavity is stretched beyond its normal size. When exercising, people should always listen to their body. | Cedars-Sinai Cedars-Sinais blog and digital publications tell the stories of thriving patients, dedicated caregivers and brilliant clinician-scientists. [10] When a spinal manipulation is performed, the applied force separates the articular surfaces of a fully encapsulated synovial joint, which in turn creates a reduction in pressure within the joint cavity. This helps to lubricate the cartilage. Exercises can help, but people who are concerned about their knees should consult a physician before starting a new exercise regime. As fingers bend, the joint capsule stretches and the air pressure inside of the fluid lessens. This creates a vacuum that the gases then fill. If for any reason this cannot be done, however, a simple and effective way of reducing (but not eliminating) the formation of air bubbles is to install an elbow fitting to deflect the air jet onto the side of the fluid container. A health care provider will clean the skin on and around the affected joint. There are a few studies that claim that glucosamine has helped with pain and stiffness but high quality studies have shown no benefit over placebo. If people wish to try this form of treatment I would always recommend that they get advice from a registered chiropractor or osteopath." You might feel looser during that period, as if youve relieved pressure from your joints. The symptoms are often short-lived and may be felt in different parts of the body at different times. We make sure that each and every products SR-TEK manufacture and supply is to the highest standard and delivered to you in the fastest time possible. Stronger quadriceps can decrease the load on the patellofemoral joint, reducing the risk of cartilage wearing away. Physiotherapists are also experts in musculoskeletal issues and some use hands-on manual therapy. Due to the theoretical basis and lack of physical experimentation, the scientific community is still not fully convinced of this conclusion. ", "Simulation May Finally Explain Why Knuckle Cracking Makes That Awful Sound", "Compulsive Joint Clicking on the Obsessive-Compulsive Spectrum: A Case Report", "A Tough Case to Crack: Diagnostic, Ethical, and Legal Considerations in Treating Compulsive Neck Cracking", "Why knuckle cracking makes a popping sound, and why it might be beneficial", "Cracked it! High blood pressure or cardiovascular disease. This article describes what synovial fluid is, what is involved in a synovial fluid analysis, and ways to supplement synovial fluid levels with exercise, diet, nutritional supplements, and injections of hyaluronic acid or platelet-rich plasma. Since gasses become less soluble at lower pressures, gas bubbles form in the capsule containing the synovial fluid. Read: Joint Effort: Breakthroughs in Hip and Knee Replacement Surgery. Gout: Overview; [updated 2020 Feb 3; cited 2020 Feb 3]; [about 2 screens]. WebAir bubbles The popping sound usually comes from air seeping into the soft tissue, finding its way into the area around the joint and causing tiny bubbles in the synovial fluid. WebWithin this low-pressure environment, various gases can precipitate out of the synovial fluid, creating a small gas bubble. Joint Aspiration (Arthrocentesis); [cited 2020 Feb 3]; [about 3 screens]. Vitamin D supplements have no effect on the outcome of osteoarthritis of the knee. While for most of us cracking our joints is relatively safe (although everything in moderation) there are some who are more at risk from serious complications. Arthrosis vs. Arthritis: What Are the Differences? lifestyle modifications, such as weight loss and exercise, when using a bicycle, keep the tension on the pedals low, when lifting weights, focus on the quadriceps or hamstring muscle groups, use lighter weights and do more repetitions, warming up before exercise and stretching afterward. Retrieved from. What's the difference between osteoarthritis and rheumatoid arthritis? Noise around the knee. However, synovitis is also common in people who have some form of inflammatory arthritis. Common causes of fluid build-up on the knee include: Injuries. National Institutes of Health, U.S. National Library of Medicine: MedlinePlus. The tests look at: This tells your healthcare provider whether you need to increase or improve your synovial fluid and may give them an idea how you can do so. If there is pain, they should stop. WebInflammation or infection affecting the cavities causes fluid to accumulate. Viscosupplementation injections contain hyaluronic acid, which is essential for healthy synovial fluid. Kyle Beswick. Registered number: 10004395 Registered office: Fulford Grange, Micklefield Lane, Rawdon, Leeds, LS19 6BA. Joints that are highly movable are called synovial joints. "Naturally, this increases the pressure within the joint", she said. Normally, the person can still use the knee, but stiffness and swelling may appear over the next 2 to 3 days. When this happens, the joints can get damaged and cause you pain. This can cause a jolt of pain, or it may not cause any pain at all. Washington D.C.: American Association for Clinical Chemistry; c20012020. Read our editorial policy. Doctors suggest that, for some people, the crepitus may have been there before, but an increased awareness how the joint is reacting makes it more noticeable now. What happens when you pop your knuckles synovial fluid. When a person bends or stretches their knees, the bubbles can burst with a popping or cracking sound. The Health Benefits of Joint Manipulation, Why Your Finger Joints Click, Snap, and Pop. 2013;32(6):895-900. doi:10.7863/ultra.32.6.895. Low levels contribute to joint pain and other symptoms. It causes a bulge and a feeling of tightness. Platelet-rich plasma (PRP) is another type of injection for easing joint pain. 27 Oct. 2012. When you visit the site, Dotdash Meredith and its partners may store or retrieve information on your browser, mostly in the form of cookies. Patient is a UK registered trade mark. It is sometimes performed by physical therapists, chiropractors, osteopaths, and masseurs in Turkish baths[1] pursuing a variety of outcomes. So while it doesn't actually increase the amount of synovial fluid you have, exercise appears to help it function and improve its quality. Patellofemoral pain syndrome. Is there any supplement that will help with crepitus of the knee, for example, glucosamate or vitamin D? Treatment may not be necessary. Part of the appeal of knuckle cracking could be that 20-minute lull, when gas bubbles are re-forming in the synovial fluid. Air Bubbles. Omega-3 fatty acids (found in salmon, mackerel, and flaxseeds) Curcumin (a You may need to fast (not eat or drink) for several hours before the test. World of Sports Science. Cracking finger joints makes a distinct cracking or popping sound. The same rules apply when seeing a professional to manipulate your neck and back, Dr Murphy adds. Another risk factor for crepitus related to PFS is trauma to the knee. "Feeling good after cracking your knuckles is a psychological experience," says Dr. Klapper. Joint pain is a normal consequence of some conditions as well as a part of getting older. This button displays the currently selected search type. Joint capsule. The tests usually include the following: A synovial fluid analysis is used to help diagnose the cause of joint pain and inflammation. Thank you, {{form.email}}, for signing up. This source says the bubbles pop because the pressure gets too low. The nitrogen bubbles within the synovial fluid usually take 20 minutes to re-form in your joints before they can crack again. The act of pulling on the knuckle using the attached finger creates a gas bubble in the synovial fluid that surrounds the joint. The movement of fluid from one container to another can absolutely cause air bubble entrapment. Dependant on the fluid viscosity trapped gas may raise to the surface over time, but this is not guaranteed. Attention should always be given to the manufacturers advice on the best process and systems for storage and handling. Available from. The exact cause of myxoid cysts isnt known, but there are two basic explanations. The conditions cause pain and can affect arm mobility. 2023 Dotdash Media, Inc. All rights reserved, Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. So, which explanation is correct: the use of the inverse proportionality of volume and pressure to explain the bubbles or the use of the vacumme?). All Rights Reserved. Another source I have completely skips the explanation as to why the bubbles burst and instead insists that there are two popping sounds in the knuckles: The knuckles are the metacarpophalangeal joints, which are often the site of joint noise that results when people deliberately pop or crack their knuckles. Dr Murphy says suggests anyone with a history of strokes, injuries to their neck, or problems with blood vessels, people taking blood-thinning medication, and people with arthritis should avoid cracking their back and neck. Supartz Injections for Knee Osteoarthritis, More Arthritis Types & Related Conditions, Effects of exercise therapy on knee joint function and synovial fluid cytokine levels in patients with knee osteoarthritis, Nutraceutical supplements in the management and prevention of osteoarthritis, Hyaluronan and synovial joint: function, distribution and healing, Platelet-rich plasma versus hyaluronic acid for knee osteoarthritis: a systematic review and meta-analysis of randomized controlled trials, The fluid's physical qualities (color, thickness, viscosity), which can reveal inflammation, Its chemical makeup, to look for changes that may be related to a disease process, Microscopic contents that are undesirable, such as crystals (which indicate gout) and bacteria (which indicate infection). Underlying inflammatory conditions, such as arthritis. On top of that, how exactly do they form in the first place? Many people with shoulder bursitis also have shoulder tendinitis. [2], The cracking mechanism and the resulting sound is caused by dissolved gas (nitrogen gas) cavitation bubbles suddenly collapsing inside the joints. It occurs when excess fluid builds up in a bursa, the cushioning pad between bones and tissue in joints. If this isnt possible, then having complete control of the environment the fluid is in during production using some of the steps mentioned in part one of this blog [insert link] can lead to a custom solution that enables the fluid to meet application and production requirements. Lets look at them now in more detail. In general, joint popping does not cause arthritis, is not a sign of a serious medical illness, and is not dangerous. Deerfield (IL): Veritas Health, LLC; c19992020. Available from: Lab Tests Online [Internet]. Hettrich, C. M., & Liechti, D. (2015, February). Available from: UW Health [Internet]. In an active, healthy person, the most common cause of synovitis is overuse of the joint, for example in athletes or people whose jobs involve repetitive stress movement such as lifting or squatting. This helps keep your joints healthy and might help lower your joint pain. Hwang, B. H., Nam, C. H., Jung, K. A., Ong, A., & Lee, S. C. (2012, November 21). So far, I have learned that present in the synovial fluid are gasses such as nitrogen, oxygen and carbon dioxide. What Causes a Swollen Knee? When your joints get stiff, it usually means that small gas bubbles or pockets have formed in the synovial fluid, the fluid that lines and surrounds joints to allow for smooth, friction-free movement, Rohach explained. Popping occurs when soft tissues rub against bony surfaces around a joint. There is some evidence that ligament laxity may be associated with an increased tendency to cavitate. Joint cracking and popping on its own does not require treatment. Treatment for synovitis usually consists of rest and anti-inflammatory medications. "With the above in mind, it is vital that you see a trained professional for these types of treatments as they are slightly stronger techniques and therefore do carry some risk if used in the wrong circumstances or performed incorrectly," Williams says. Suggested causes included: There were several hypotheses to explain the cracking of joints. Also called a popliteal (pop-luh New comments cannot be posted and votes cannot be cast. Often in applications requiring adhesives such as cyanoacrylate, the wrong adhesive is selected for the application. In an active, healthy person, the most common cause of synovitis is Int J Mol Sci. This can often leave operatives having to manage four or even nine times the amount of air to fluid needed in a five or 10 litre tank. Moving your fluids? There are conditions which mean spinal manipulation is not appropriate, she adds, including: Certain medications and neurological conditions can also increase risk when cracking your back, so it's best to seek professional treatment. Another common cause of air bubbles is too little fluid in the pressure tank. It can also happen after a traumatic injury. Your provider then injects the fluid into your joint. This condition can be caused by a knee injury or a condition like arthritis. Your healthcare provider may recommend a type of injection to help protect your joints or alleviate joint pain. Microscopic analysis to look for crystals, bacteria, and other substances. Conrad, D. N., & Dennis, D. A. Is there a a scientific law to explain this? Rachael is a freelance healthcare writer and critical care nurse based near Cleveland, Ohio. "The best study so far suggests that cracking your knuckles doesn't increase the risk of arthritis, although we can't say this for certain.". You can find out more about our use, change your default settings, and withdraw your consent at any time with effect for the future by visiting Cookies Settings, which can also be found in the footer of the site. Every source I have looked at simply mentions that once the gas bubbles are formed, they pop to produce the noise. In some cases, popping is something you might feel rather than hear, especially in your knee. Therapeutic and massage procedures can also cause popping sounds with the release of tight joints and movement of structures. If there is pain as the knee snaps or catches, it can be because scar tissue, a meniscus tear, or a tendon is moving over a protruding bone within the knee joint. It can cause pain, swelling, redness, and loss of function in the affected area. Health Encyclopedia: Uric Acid (Synovial Fluid); [cited 2020 Feb 3]; [about 2 screens]. When this happens, you can crack the joint to loosen it, releasing the gas from it's bubbles. The specific treatments may vary depending on your diagnosis. Loris Medart, founder of SR-TEK has over 20 years experience in fluid dispensing and raw material handling which allows us to provide innovative solutions for a range of manufacturing companies the electronic, aerospace, energy, healthcare and medical industries. When these gas bubbles burst quickly, they make a popping sound, in a similar way to when you pop bubble-wrap. How exactly does this work and what is the science behind it? Cookies collect information about your preferences and your devices and are used to make the site work as you expect it to, to understand how you interact with the site, and to show advertisements that are targeted to your interests. Vol. Johns Hopkins Medicine. No arthritis or other ailments formed in either hand, and for this, he was awarded 2009's satirical Ig Nobel Prize in Medicine.[19]. The name of this cracking or popping sensation is crepitus. Soft tissue provides padding and protection. When those bubbles escape, in a process known as cavitation, they make a popping noise. That way, they can get you diagnosed and treated before damage becomes severe. Acceptable sources are pleural fluid, synovial fluid, aqueous and vitreous humor, amniotic fluid. Some nutritional supplements have been shown to increase synovial fluid. It can affect different parts of the body, but it is common in the knee. Air entrapment and gas bubbles are some of the most common causes of poor fluid performance and parts failure in modern fluid management. WebThe cracking mechanism and the resulting sound is caused by dissolved gas (nitrogen gas) cavitationbubbles suddenly collapsing inside the joints. [12] The effects of this process will remain for a period of time known as the "refractory period", during which the joint cannot be "re-cracked", which lasts about 20 minutes, while the gases are slowly reabsorbed into the synovial fluid. When you visit the site, Dotdash Meredith and its partners may store or retrieve information on your browser, mostly in the form of cookies. Typical joint. WebNo one knows exactly what causes a ganglion cyst to start growing. Gainesville (FL): University of Florida Health; c2020. When these joints are healthy, the bones slide against each other without friction or pain. WebCrepitus or crepitation is the noise heard during joint movements, such as cracking, grinding, popping, or snapping. Synovial joints, such as the hip and knee, have a sheath of tissue known as a joint capsule that contains a synovium. WebJoints usually pop due to a buildup of air, explained Nicholas Anastasio, M.D., a board-certified physician at Orthopedics and Joint Replacement at Mercy Medical Center in Baltimore, Md. Learn more about synovitis treatments and related conditions from the articles listed below. The pressure inside the joint capsulejoint capsuleIn anatomy, a joint capsule or articular capsule is an envelope surrounding a synovial joint. Is further treatment necessary for patellar crepitus after total knee arthroplasty? There is no known supplement that will help with crepitus of the knee. When we stretch our knuckles, we increase the volume of the capsule containing the synovial fluid. However, this is not supported by medical research. Although a popping joint can be startling, it is not usually caused by a serious problem, and there is generally nothing that needs to be done (for adults or kids). WebAs the pressure of the fluid decreases, this causes the gases in the synovial fluid to come out of solution, creating bubbles. If too long, with an oversized diameter, there is a risk for loops, high points and low points, that can cause air bubbles to be formed and dragged through the system by the fluid. Ask a science question, get a science answer. Normally, there is only a small amount of synovial fluid By pulling on the knuckle, the joint is increased in size by approximately 15%. Knee crepitus can happen at any age, but it is more common as people get older. Some foods known to help with synovial fluid production are: Be sure to talk to your healthcare provider before making dietary changes.