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Knee Pain Treatment: Causes, Symptoms, and Diagnosis

Individuals of all ages suffer from knee pain once in a lifetime. It affects the quality of work and life negatively. Knee pain might occur due to injury, ruptured ligament, cartilage or different medical conditions like infections, gout, arthritis or others. Some of these knee pain respond well to simple over the counter medicines while other knee pain needs the proper surgical procedure for complete relief from pain. However, with the advancement in medical science knee pain can be effectively treated with lasers.

Before you jump onto the treatment plan for knee pain, let’s have a look at the causes, symptoms, and diagnosis of knee pain:


The causes of knee pain include the following:


Some mechanical issues that might result in knee pain include the following:

Iliotibial band syndrome- this condition occurs when the iliotibial band is tight enough to rub against the femur surface. This tissue band extends from the hip towards the knee joint resulting in painful sensation when exerting pressure.

Foot or hip joint pain- these painful joints might cause you to walk awkwardly in order to reduce the pain sensation. This altered gait results in stress over the knee joint.

Dislocated kneecap- this abnormal condition occurs when patella/ triangular bone covering the front of your knee moves out of its place leading to the dislocated kneecap.

Floating bone- some injuries or degeneration of cartilage or bone result in breakage of bone within the joint space. This bone might not result in pain until the loose body results in interference of the joint movement.


A knee injury can be of any type that can negatively affect the tendons, ligaments or bursa (fluid-filled sacs) around the knee joint along with the cartilage, ligament, and bones surrounding it. Some common knee injuries include:

Fractures- the patella is the most commonly fractured knee bone that occurs during falls or vehicle collisions. Knee fractures are also commonly seen in people who suffer from osteoporosis.

ACL injury- during this condition, the patient experiences tear of one ligament that runs from shinbone to the thigh bone i.e. anterior cruciate ligament. This injury commonly occurs in individuals who play soccer, football, basketball, and others. 

Knee bursitis or patellar tendonitis- it is the inflammation of the bursa or tendon respectively. These inflammatory conditions are seen in people who are skiers, runners, involved in activities where the tendon or the bursa can get inflamed.


The most common forms of arthritis resulting in knee pain include:

Rheumatoid arthritis, osteoarthritis, gout, pseudogout, septic arthritis, and others. 

Other risk factors for knee pain include obesity, lack of flexibility within the muscles, certain occupations or sports, or previous knee injury.


The cause of knee pain along with its severity and location results in varying signs and symptoms. The most common symptoms of knee pain experienced by most individuals include the following:

Stiffness, warmth, swelling, warmth on palpation. Other symptoms include crunching or popping sounds, instability to straighten the knee along with weakness of the joint.


The diagnosis of knee pain starts with the physical examination where the doctor inspects the knee for any painful sensation, swelling, warmth, tenderness or visible bruising. The doctor then examines your walk whether you can move in all directions or not. The strength of the knee structure is evaluated by pushing or pulling over the joint. After the physical examination, the doctor prescribes the imaging tests to evaluate the internal structure of the knee joint. These imaging tests include the following:

X-rays- it is one of the most commonly prescribed imaging tests which helps in the detection of degenerative bone disorders or bone fractures. CT scan or computerized tomography- in this scan, the different X-rays are combined from various angles which creates the cross-sectional imaging of the internal body structures. CT scans are helpful in diagnosing subtle fractures or bone joint issues. A specialized type of CT scan is available which allows you to diagnose gout even if there is no inflammation within the joint. 

MRI or magnetic resonance imaging- this technology utilizes power magnet and radio waves which results in the formation of 3D images for the infrastructure of the knee. MRI is particularly useful to address knee injuries present within the soft tissues of the knee such as tendons, cartilage, muscles or ligaments. If the inflammation or knee infection is predicted by the doctor, lab tests are then prescribed which includes blood tests. Arthrocentesis is another procedure where a small amount of knee fluid is removed from the joint with the help of a needle and sent to the lab for analysis of inflammatory markers.


The line of treatment for knee pain ranges from medications, therapeutic procedures, injections,

surgical procedure or lasers. Ibuprofen or other pain-relieving medications may be prescribed by the doctor. Different therapies are also prescribed by the doctor which includes physical therapy or strengthening exercises which makes the surrounding muscles active and strengthen them at the same time. Injections are also prescribed by the doctor in painful knee conditions such as corticosteroid injections, platelet-rich plasma, hyaluronic acid, and others. Surgical procedures for treating knee pain are rarely done as it has both pros and cons. These surgical options include partial knee or total knee replacement surgery, arthroscopic surgery, and others.

Other than the painful treatment options with severe side effects, medical science has made an advancement in the field of lasers. These lasers are non-invasive and completely pain-free with rapid results.


Bio flex has introduced one of the most effective and pain-free lasers for all the individuals who regularly suffer from knee pain. This low laser therapy is based on light technology that treats musculoskeletal problems in the most efficient way. The BioFlex laser therapy offers cellular healing that results in resolution of painful sensation along with other symptoms.

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