Reasons Your Knee Has Given Out
The knee is a complicated joint, more than just a hinge that allows your leg to bend and straighten. Ligaments, tendons and bones assist the joint with bending, twisting, and stabilizing weight and movement. One of the primary functions of the knee is to support the body by bearing its weight. When the knee joint is compromised, so goes the body. A person whose knee suddenly gives out or buckles is at risk of a sudden fall and further injury.
Its not normal for a knee to buckle, and while it might at first seem like a fluke it could be a serious problem. Your health professional may order an X-ray or an MRI to receive an accurate assessment, in order to properly diagnose the knee problem. In many cases, an orthopedic specialist can provide the best treatment options for problems affecting the musculoskeletal system, especially joints like the knees.
Complications Of Knee Buckling
Complications of weak knees may include:
- Recurrent falls
- Lack of confidence with balance
- Feeling scared or nervous about future falls
- Injuries because of falls
You should see your healthcare provider if you are experiencing the sensation of your knee giving out.
Seek immediate medical care if your knee gives out and you experience severe pain, significant swelling, or a fever.
Most Common Symptoms Of A Loose Knee Replacement
Walking became impossible. Each step was associated with severe pain. Knee replacement seemed like a good solution. Unfortunately, months after the surgery problems exist. Your doctor thinks you have a loose knee replacement. What is a knee replacement? What causes a knee replacement to become loose? What are the 7 most common symptoms of a loose knee replacement? How successful is knee replacement surgery? What are the risks of knee replacement? Is there a knee replacement alternative? Lets dig in.
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What Can Cause Knees To Give Out
Lateral Collateral Ligament Injury

The lateral collateral ligament is one of the four main ligaments of the knee. It connects the outer side of the femur and tibia and is primarily responsible for stabilizing the outer aspect of the knee.
An LCL injury is often the result of a blow to the inside part of the knee this causes the LCL to stretch beyond normal and can result in partial or complete tearing of the ligament.
Symptoms may include soreness on the outside of the knee, swelling, and stiffness. You may experience instability a feeling that the knee is unstable and going to buckle or give out.
32 million adults in the United States.
With aging, the cartilage that helps cushion the ends of bones in the knee joint can wear thin and eventually allow the bones to rub together. Pain, stiffness, and loss of joint movement can follow.
Some people have more significant wearing of the cartilage in the outer compartment of the knee joint and this can lead to lateral sided knee pain.
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What Happens When Knee Buckles
The ailment known as a trick knee is one in which your knee will abruptly buckle beneath you. When this happens, it indicates that your knee is unable to sustain your weight and will eventually give up. In the vast majority of instances, knee discomfort is related with knee buckling, and knee buckling can make knee pain worse when it already exists.
Treatments For Knee Injuries & Osteoarthritis
Most treatments for a knee injury and osteoarthritis of the knee work best when started early.
If your knee is giving out, you should seek an assessment from a qualified physiotherapist.
After the assessment, your physiotherapist may recommend bracing to help stabilize your knee and will offer you a treatment plan to help:
- Reduce pain
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When Should You Seek Medical Attention For Buckling Knees
Knee buckling in the absence of strenuous activity is abnormal and you should seek medical attention if this happens. If your knees buckle during strenuous activity, and you experience residual pain, “grinding,” inability to bear weight, or knee locking, you should seek medical attention. The doctor may test the “range of motion” of the knee or move it through a series of positions to evaluate it and then help you develop a treatment plan or refer you to a specialist.
Ever Feel Like Your Knee Is Gonna Give Out
That feeling of instability could be a symptom of a greater issue. You may have one of these injuries that can be treated by a variety of non-surgical means:
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Patellar Dislocation Or Subluxation
The kneecap, or patella, normally glides through a groove. A direct blow to the kneecap, usually from an accident or sports injury, can dislocate it from this groove. This is called patellar instability.
Two types of patellar instability include:
- Patellar dislocation: The kneecap is totally moved outside of its groove.
- Subluxation: The kneecap is only partially out of its groove.
Why Does Moving The Quad Tendon Create A Problem For Knee Buckling
When the surgeon moves the quad tendon off to the side of the knee to get it out of the way during surgery, it stretches the quad just a bit. When a muscle is stretched for prolonged amount of time, it takes a little time for the muscle to get its bounce back. Usually just a couple of minutes if the stretch was short lived, or a couple of hours if it was put on prolonged stretch . This usually doesnt cause a significant amount of knee buckling, but it can contribute to the perfect storm.
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How To Prevent The Knee From Buckling After Knee Replacement Surgery
The best time to start preventing the knee from buckling after knee replacement surgery is before the knee replacement surgery. The stronger your quad muscle is before knee replacement surgery to easier it is to rehab. Essentially, if you strengthen your quad muscle before surgery, it gets good at and consistent at contracting, so then each time you have to do it later it already knows how to do it, so even if its a little delayed its still better than if you hadnt been practicing.
Next Think About How Strong The Muscles Of Your Knee Were Before Surgery

Prior to your knee replacement surgery, you were likely in pain, walking with a limp and not moving around regularly. This makes it so the quad muscle doesnt get much exercise, so it starts getting weaker. When the quad, or any muscle really, but in this instance the quad, is weak it has a hard time contracting and activating. It may have difficulty contracting strong enough to do the task you want to do, or maybe its not contracting at the right time or through the whole amount of time that you want. This creates a problem because the quad muscle is the main muscle that keeps your knee from buckling when youre walking and standing.
So now add the fact that you had a weak leg before surgery to all the factors from surgery itself, it just makes it tough for that quad muscle to contract.
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Cant Bear Weight On Your Knee Or Feel As If Your Knee Is Unstable Or Gives Out
You Are Not Allowed To Put Any Weight On Your Knee. If you are unable to put weight on your knee, there is a strong possibility that there is an issue that requires immediate medical attention. After suffering a knee injury, you may be unable to put weight on your knee because you have a fracture, a bone contusion, an injury to the cartilage, or a torn ligament.
Revision Total Knee Replacement
According to what I have read, total knee replacement is one of the most successful procedures in all of medicine. In most cases it allow patients to live an active pain free life.
A knee replacement can fail for several reasons. Symptoms may include pain, swelling, stiffness, and lack of stability.
If your knee replacement fails or wears out your doctor may recommend that you have a second surgery called revision total knee replacement. In this procedure, your doctor will remove some or all of the parts from the original implants and replace them with new parts.
Just like your first surgery, the goal of revision surgery is to relieve pain and improve the function of your knee.
Revision surgery is longer and a more complex procedure.Most patients who have revision surgery experience good long-term outcomes.
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# 7 Synovial Plica Syndrome
These are folds in the membrane around your joint in the knee. They are thought to be left over material from the development stage of birth. Kind of like your appendix, they dont serve much of a purpose except to get irritated in some people.
Usually the plica will get caught in the front and inside part of your knee. It can get caught rubbing against your knee cap through movements which involve bending the knee.
Synovial plica syndrome is more common in the younger years of life up to about 30 years old. There is wide variation in the exact prevalence of this condition, however its thought to occur in about 10% of the population.
Treatment Options For Knee Buckling
ACL tears generally require surgery to strengthen the ligament, but rehabilitation is also an option, your treatment will depend on how much of the ACL is torn.
Loose Bodies in the Joint Capsule can be Removed by Arthroscopy.
Knee Strengthening Exercises Help During Recovery Post Injury
To treat or prevent knee buckling, you can do specific exercises. Strengthening the knee muscles and ligaments can improve the stability of joints. When we are referring to knee buckling, it is the muscles in the thigh, back of thigh, buttocks, and calf that should be worked on.
Here is a List of Knee Strengthening Exercises:
- Lie on your back. Tighten your thigh muscles, allowing knees to touch the floor. Hold for few seconds. A rolled towel can be placed under your knee.
- Lie on your back and tighten buttocks muscles. Hold for a few seconds.
- Lie on your back with your knee straightened on the floor, then tilt the toes towards your body and feel the stretch in the calf.
- Lying on your back with a pillow under your knee, raise the leg and straighten the knee while resting on the pillow. Hold a few seconds and release.
- Lie on your stomach. Bend your knees and bring heels towards your hips, hold, and straighten them again.
- Sit on a chair with your heels on the floor and raise your leg to straighten your knee, hold, and bring it down. Eventually, you can tie the weight around your ankle and do this exercise.
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Knee Giving Out Associated Symptoms To Watch For
In osteoarthritis and rheumatoid arthritis pain, stiffness, locking and grinding are some other complaints. There is the only conservative management of the symptoms of arthritis with medication, physical therapy and a knee brace is added for support while walking.
In injury-related to buckling often pain and swelling in the affected knee are seen. It usually goes away after you treat the underlying injury, followed by physical therapy. Its best to avoid exertion on the knee during recovery.Sometimes nerve damage can make your knee prone to buckling. Nerve damage is associated with numbness and tingling sensation.
Signs Of Knee Replacement Failure
No one likes to hear the word failure when you are scheduled for surgery. Those of us who made the decision to have total knee replacement did so because we were looking forward to having a functional, pain-free knee.
The last thing we wanted were complications that needed additional medical care or further surgery.
Doctors are not perfect. When I was a youngster, I thought teachers, police and doctors could do no wrong. As I aged, I learned that everyone is human and can make a mistake. Even your surgeon.
There are other factors besides physician error that can cause complications after surgery. In the sections below, I will discuss some things that could go wrong during the knee replacement process.
Remember, there are several things that you can do prior to knee replacement surgery to improve the chances of a successful outcome. Building leg strength, stretching, exercising and weight management are a few pro-active steps you can do to increase the probability of success.
My experience, as well as my discussions with TKR veterans, leads me to believe that the vast majority of knee replacement surgeries have a positive outcome.
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Pain Is Radiating To The Back Of Your Knee
Pain in the back of the knee can be something that happens immediately after a traumatic injury or something that progresses over time. The pain usually gets worse when walking, running, squatting or climbing stairs. Several conditions can cause this type of pain and include arthritic conditions, tears of the back of the meniscus or, in some cases, from a large Bakers Cyst that forms in the back of the knee.
Speak Up Before You Fall Down

Such consequences, say the researchers, are preventable in people whose buckling knees are caused by muscle weakness or poor balance with interventions that include quadriceps-strengthening exercises and balance and agility training. Doctors must do their part in first identifying these patients and patients should bring up the subject if their doctors dont.
Unless prompted by their doctors, most patients dont mention incidences of their knees giving way. The researchers suspect that doctors dont always consider knee buckling and its consequences in their arthritis patients because theyre more focused on pain relief and regaining function. As a result, the researchers are encouraging doctors to routinely ask patients whether theyve experienced any knee buckling or instability.
Dont wait for your doctor to ask about these symptoms, Flynn says. Since pain is the most common knee-arthritis symptom, other symptoms like buckling can sometimes be overlooked. Ask your doctor about options that can help you stay active and reduce your fall risk. In addition to recommending exercise, he or she may suggest losing excess weight that could be putting strain on your knees upgrading your footwear to shoes or slippers with low heels and thin, slip-resistant soles and using a walking aid such as a cane.
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A Tear In Your Cruciate Ligaments
As the knee joint relies on the stability of the anterior cruciate ligament and other ligaments, an injury or damage can cause a situation where the knee gives out when walking.
Your cruciate ligaments run down the center of your knee. This tear tends to be sudden and is usually the result of an injury to the knee. Often the knee pops and immediately begins to swell after it has buckled.
Injuries to the cruciate ligament are called ACL tears. They often occur when pivoting or turning sharply. And for this reason, they often occur during sporting activities.
Types Of Knee Pain You Shouldnt Ignore
As you become older, you may start to experience small aches and pains. Some are minor you slept in the wrong position, you sat too long in one spot, you worked out a little too hard and others can be more serious. While most minor aches and pains can be ignored, some may be indications of more serious matters. But, how do you know which pains are too serious to ignore? And, how can you identify their symptoms?
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