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Knee pain can be a result of injury or disease of the knee joint. Injury can affect any of the ligaments, bursae, or tendons surrounding the knee joint. Injury can also affect the ligaments, cartilage, menisci (plural for meniscus), and bones within the joint. The complexity of the design of the knee joint and the fact that it is an active weight-bearing joint are factors in making the knee one of the most commonly injured joints.

Pain can also occur in the knee from diseases or conditions that involve the knee joint, the soft tissues and bones surrounding the knee, or the nerves that supply sensation to the knee area. In fact, the knee joint is the most commonly involved joint in rheumatic diseases, immune diseases that affect various tissues of the body, including the joints to cause arthritis.

Common Knee Symptoms

Timing of Pain:Some common situations cause pain typical of certain conditions.

1.Morning pain: Pain after first waking in the morning that resolves with gentle activity is typical of early arthritis. Often patients loosen the knee over the course of the day.

2.While going down stairs: Pain while walking down steps is very commonly associated with kneecap problems, such as chondromalacia.

Location of Pain:The location of the pain can be an important part of tracking down the symptoms.

Location of Pain:The location of the pain can be an important part of tracking down the symptoms.

1.Pain in the back of the knee: Pain in the back of the knee can be due to the formation of a cyst, called a Baker’s Cyst, in the back of the knee joint. Also common is for kneecap pain to be felt in the back of the knee.

2.Outside of the knee: Pain on the outside of the knee, or lateral aspect of the knee joint, is commonly caused by lateral meniscus tears, lateral collateral ligament injuries, IT band tendonitis, and arthritis of the joint.

3.Inside of the knee: Pain on the inside, or medial aspect, of the knee is commonly caused by medial meniscus tears, medial collateral ligament injuries, and arthritis of the joint.

4.Front of the knee: Pain over the front of the knee is most commonly related to the knee cap. Kneecap pain can be caused by several different problems.

1.Swelling:Swelling of the knee is common with several different knee problems. When there is swelling immediately after an injury (within an hour), the most common causes are an injury to the anterior cruciate ligament or a fracture of the top of the shin bone. When swelling develops gradually over hours to days, the injury is more likely a tear of the meniscus or a ligament sprain. Swelling that occurs without the presence of a known injury can be due to arthritis (common), gout (less common), or a joint infection (uncommon).

2.Giving-Way/Instability:The stability of the knee is provided by the ligaments that connect the shin one (tibia) to the thigh bone (femur). When the ligaments are stretched or torn, the knee may feel as though it is giving way beneath the patient. A sensation that the knee may give out from beneath you is a common symptom of ligament injury.

3.Locking:Locking is a symptom that occurs when a patient cannot bend or straighten their knee. The locking can either be due to something actually blocking motion of the knee (this can occur when a piece of cartilage wedges within the joint) or when pain prevents the patient from moving the knee. These two causes must be differentiated, as something physically caught in the joint should be evaluated in a timely manner. Often injecting the knee with numbing medication can help determine the cause of locking.

4.Crunching/Grinding:A sense of grinding or crunching is most often associated with bone grinding against bone once the cartilage is worn away. This is commonly found in arthritis. Patients who are young (under 50 years old) seldom have arthritis that will cause these severe symptoms, unless there has been a severe injury to the knee in the past.

5.Popping:Popping and snapping within the knee is quite common, and often not a symptom of any particular problem. When the pops or snaps are painless, there is usually no problem–the bigger concern is when these sounds are associated with pain. A pop is often heard or felt when a ligament, such as the ACL, is torn.

Knee Pain Symptoms and Signs

Knee joint is largest and most complicated joint in the human body. Our knee joint bears the weight of our body and enable us to stand, sit, walk, run, etc. We can straightens, bends, twists and rotates this joint and it is due to all these motions that this joint remains at the high risk of injury. Knee pain can be occurs as a result of some injury or disease as well.The knee injuries can be classified as Acute injury and Overuse injury.

Acute injury refers to the torn ligaments and torn cartilage and caused by twisting the knee or falling. This type of injury is common with players and wrestlers. The overuse injuries that include muscle strain, tendonitis and bursitis are more common than acute injuries. Such injuries gradually and often cause mild pain at initial stage. Knee osteoarthritis is also a common cause of knee pain. Osteoarthritis is a form of arthritis involving degeneration of the cartilage. People with knee osteoarthritis may also need to take pain medications and/or other complementary pain treatments.

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