![]() ![]() There are several different types of arthritis that can affect your knee and cause posterior knee pain: Symptoms include a dull ache behind your kneecap (patella) that may worsen when climbing the stairs or after sitting for a long time, difficulty moving your knee along its full range, weakness or giving way of your knee, and a cracking or grinding feeling when bending or straightening your knee.Īrthritis causes inflammation of your joints due to the cartilage in your knee wearing away. Common causes include injuries, wear and tear with age, overuse and arthritis. It can be strained if it is overstretched and if enough pressure is applied it can tear in two.Īlongside posterior knee pain, symptoms include swelling, stiffness and weakness of the knee, as well as difficulty walking.Ĭhondromalacia occurs when the cartilage in your knee wears down, so your bones rub against each other. Occasionally, the PCL can be damaged by twisting your knee or missing a step when walking. It is less likely than the ACL to be damaged, however, it can become damaged if your knee is hit by a blunt object (eg during a car accident). It helps stabilise your knee so you can move it smoothly. The posterior cruciate ligament (PCL) is a ligament that runs along the back of your knee and connects your thigh bone to your shinbone. ![]() Posterior cruciate ligament injury (knee sprain) You may find it difficult to bend your knee and/or walk. You may hear a popping noise on injury followed by immediate pain and swelling. You can also damage your ACL if you land badly after a jump or your knee is hit by a blunt object. It helps stabilise your knee so you can move it smoothly.ĪCL injuries are common when playing sports where you suddenly slow down, stop or change direction when running (eg football). The anterior cruciate ligament (ACL) is a ligament that runs along the front of your knee and connects your thigh bone to your shinbone. However, over the next few days, knee pain will develop, as well as stiffness, swelling, weakness and/or locking or giving way of your knee. You may hear a popping noise when it tears but have no immediate pain. With age, this cartilage weakens and can more easily tear with any twisting motion during everyday activities. If you play sports that involve squatting or twisting your knee, you may tear this cartilage. Each of your knees has two menisci, one on each side. The meniscus cartilage sits in your knee joint and acts as a cushion to stabilise it. Symptoms include bruising, pain and swelling in your calf, and difficulty standing on your tiptoes. If you take part in sports where you suddenly have to go from standing to running (eg during tennis or squash), the gastrocnemius muscle can tear or become strained. They help you bend your knee and point your toes. Your calf muscles include the gastrocnemius muscle and the soleus muscle in the back of your lower leg. Symptoms include sudden pain and swelling, bruising and weakness in your leg. Symptoms often worsen on activity and if the cyst bursts, you will feel a sudden, sharp pain. In addition to posterior knee pain, symptoms include swelling, stiffness and difficulty bending or straightening your leg. However, the hamstrings can also be torn, which can take several months to heal.Ī Baker’s cyst is a fluid-filled sac that sits behind your knee that can develop if you have arthritis or sustain a knee injury, which causes your knee joint to become swollen and inflamed. Hamstring injuries most often occur when playing sports, usually when the hamstring is overstretched (strained or pulled hamstring). Your hamstrings are three muscles that run along the back of your thigh and help you bend your knee. The tendon develops tiny tears that cause swelling stiffness, weakness and difficulty bending and straightening your knee.īiceps femoris tendonitis (hamstring injury) This is also known as patellar tendonitis and occurs when a tendon in your knee is injured, often while playing sport. Toxins in your blood eg lead or mercury.Leg cramps are most common during exercise and pregnancy. After the spasm, your muscles may feel sore for several hours. Symptoms include a sudden muscle spasm, with pain lasting from several seconds up to 10 minutes. Leg cramps occur when your leg muscles tighten up. There are many different causes of posterior knee pain, including injury, inflammation or infection of the knee joint, overuse, wear and tear with age, osteoarthritis, rheumatoid arthritis, cysts or in very rare cases, cancer.
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