Knee Pain: Causes, Diagnosis, and Treatment

Knee pain caused by injury or illnessKnee pain can occur in patients of all ages and lifestyles. This pain is observed during physical activity for a variety of reasons: from injury or bruises to serious illness and inflammation. Ignoring it can have serious consequences. A common question is what should you do if you are in pain? When pain first occurs, it is recommended to consult a doctor to avoid hospitalization; treatment can only be carried out by a doctor.The first signs of knee pain are usually caused by heavy loading, wear and deformation of the joint. This disease is felt not only during times of excessive stress, but also at rest, during breaks and while carrying out daily activities. In this article, we will take a look at why knees hurt, the main diagnosis and treatment methods.

What is the knee joint?

The knee joints of our bodies bear a great deal of load and weight, and are responsible for most injuries and stress during falls, sports, and lifting heavy objects. The knee joint itself is one of the largest joints in our body.The knee joint includes:
  • the joint itself;
  • muscle;
  • kneecap;
  • meniscus;
  • joint capsule;
  • the ends of the femur and tibia,
  • vessel,
  • nerve,
  • ligament
A knee joint model that allows you to evaluate its structureEach of these components is susceptible to damage, although pain is not always felt immediately. For example, a dislocated or torn meniscus and a torn anterior cruciate ligament can reduce mobility and damage to blood vessels can lead to hematoma. After an infectious disease, the knee joint capsule may begin to become infected. If the patient has a neurological disorder, the knee may feel tingling. Additionally, it can radiate to joints, causing pain in the femur, tibia, and muscles.

causes of joint pain

The nature of pain can be divided into two groups: acute and chronic. Acute pain is characterized by rapidly developing and progressive pathology. In contrast, chronic diseases progress rather slowly and require lifelong treatment. The causes of this pain vary, and so do the treatments.
Let's look at the main causes of pain.

pain from injury

Acute pain is caused by injuries and various traumatic behaviors. You can get injured from a fall, movement, or uncomfortable shoes. The pain begins a few days after the injury. There is usually a slight swelling of the knee and the victim's pain is tolerable. Depending on the severity of the injury, abrasions may appear on the surface of the skin. In addition, excess weight, abuse of unhealthy habits, and specificities of occupation and work can increase the risk of injury.Damage type:
  • Bruised knees.Frequent and minor damage. Swelling, redness, and increased surface temperature occur in the knee area. Even a minor injury to the knee can cause destruction of joint tissue cells.
  • sprain.Sometimes a muscle, ligament or tendon sprain can go unnoticed, causing sudden and severe pain in the knee, and the joint itself can become unstable when the leg is stepped on.
  • Ligament rupture.It may occur due to strong twisting of the leg in an unnatural direction and cause severe pain, swelling, and swelling.
  • Meniscal tear.Occurs due to heavy loads, blows to the knees, twisting of the legs and their unnatural position. A torn meniscus can cause your legs to stop moving normally. It often occurs in athletes and is associated with swelling, bleeding, and the inability to bend the leg. There's a rule about exercise: Your knees may hurt, but they'll be gone the next morning after training. If the disease does not disappear, you need to consult a doctor.
  • Joint fractures.As a result of the fracture, the soft tissue is also damaged, causing severe pain and deformation of the knee.
An unpleasant sensation in the knee is not always a characteristic of this disease. Sometimes, a herniated disc can cause knee pain at night. Discomfort can also occur if the knee joint is used too little and the associated muscles lose tone.Asymmetry of the sacrum and pelvic bones can also cause knee pain. It is caused by a difference in the length of the lower limbs, which may be the result of congenital characteristics or pelvic curvature, including scoliosis.

knee joint disease

Any inflammation or damage to the knee structure can cause discomfort, especially when moving. And the infection isn't always limited to the knee itself. Generally, joint diseases affect the whole body, and the knees are more seriously damaged due to the heavy pressure. Additionally, pain in the knee joint may occur due to spinal injury or disease, or from a fractured femoral neck. Let's take a look at some of them:
  1. arthritisIt is an inflammatory process that occurs after trauma caused by infection or metabolic problems. If left untreated, the cartilage in your knee joint will continue to gradually wear away, leading to increased pain.
  2. Rheumatoid Arthritis– An autoimmune disease in which the body’s defense cells negatively affect tissues. The joints lose mobility, become swollen, have persistent pain, and experience increased stiffness.
  3. Rheumatism– In general, teenagers and those who have recently had strep throat are susceptible to infection. It is characterized by alternating unpleasant sensations.
  4. Arthropathy (arthrosis) of the knee.It occurs on one or both knees. The disease is characterized by a degenerative dystrophic process accompanied by the growth of connective and bone tissue that interferes with movement. In the early stages of the disease, discomfort only begins after long walks, but as the disease progresses, pain begins to occur even when walking short distances. Difficulty standing up from a chair, squatting, or walking up stairs. The pain only bothers you when you are resting. The cartilage shock-absorbing tissue is destroyed or thinned. As knee arthrosis progresses, people will notice a tightness in the knees and deformation of the joints.
  5. reactive arthritis– Starts a few days after intestinal infection. Severe pain combined with swelling and redness of the skin of your right or left knee usually indicates reactive arthritis.
  6. Bursitis– Inflammation of the joint capsule, causing severe pain and discomfort during movement.
  7. periarthritis– Inflammation of the tendons, muscles and ligaments around the knee joint. Pain will occur as the load on the bent leg increases.
  8. rickets– The cartilage that surrounds the knee joint and cushions friction and impact is destroyed.
  9. tumor– When they occur, blood vessels become compressed and the joint capsule deforms, causing pain and limiting mobility.
  10. osteoporosis– Tissues weaken, become more fragile, and the calcium content in the bones gradually decreases.
  11. osteomyelitis– Inflammation of bone tissue in the affected area, accompanied by swelling, fever and acute severe pain.
  12. Osteoarthritis– Inflammation of the joint capsule gradually becomes localized to the bone. The cartilage wears away and becomes thinner, causing the bones to no longer slide easily when moving the limb. Soreness occurs.
  13. Osteoarthritis– A disease that affects all parts of the joints.
  14. patellofemoral pain syndrome– Frequently occurs in young patients. During physical activity, the kneecap moves forward. This happens because the foot is not positioned correctly and the muscles are not prepared to bear excessive and heavy loads.
  15. Osgood-Schlatter disease– Knee pain when bending, climbing stairs, squatting.
  16. Nerve damage and neurological tissue diseases.Severe pain, numbness and tingling in the lower limbs, and difficulty in moving occur. Nerve compression occurs due to inflammation, tumors, or previous injury. Or neuritis—inflammation of nerves in one or more areas—can occur. Feel severe pain, reduced mobility and sensitivity, and involuntary contraction of the limbs.
  17. Impaired blood supply.
  18. Various other infectious diseases.Complications that develop can lead to the onset of weakness and pain.
In addition to the diseases listed, other diseases can cause the appearance of pain: synovitis, ligamentitis, tendonitis, gout, neuropathy, cysts, etc.Knee pain is therefore always a sign of pathological processes affecting the cartilage, bone or soft tissue structures of the knee itself or damage to the nerves that innervate the knee.

Diagnosis of knee pain

Diagnosis of knee pain involves palpation of the affected jointIn order to start treatment, it is necessary to make an accurate diagnosis by a doctor at the clinic using diagnostic measures.Patients seek an appointment with an osteopath, orthopedic traumatologist, surgeon, or rheumatologist. If necessary, after examination and examination, the patient may be sent to another specialist.At the time of the appointment, the doctor collects a medical history—complaints, symptoms and problems, infections, and chronic conditions related to the patient. Thereafter, the doctor may palpate the area and ask the patient to perform various exercises and tests. For example, bend and straighten your knees. This will provide preliminary information on the level of discomfort.To get more information and determine an accurate diagnosis, patients will undergo one or more tests:
  • Radiography (X-ray);
  • Ultrasound (ultrasound);
  • Magnetic resonance therapy (MRI);
  • Computed tomography (CT);
  • Arthroscopy (a special instrument, called an endoscope, is inserted into the joint);
  • Puncture to collect synovial fluid;
  • Laboratory tests (general and biochemical blood tests, serological tests).
To diagnose neurological diseases, MRI and CT are used depending on the contraindications. Some diagnoses require more precise testing.To relieve knee pain, you can visit an osteopath, physical therapist, chiropractor, or massage therapist. The osteopath will help restore the normal position of the pelvic bones and internal organs, which positively affects their function, improves nutrition of all spinal structures by activating blood circulation, and improves posture by eliminating spinal deformities.

Treat knee pain

Choosing the best medication for knee pain is impossible on your own. This is because it is first necessary to find out the real cause of the symptoms and determine the type of pathological disease in the body.Treatment of the knee joint is comprehensive. This set of measures includes:
  • Medicinal (non-steroidal anti-inflammatory drugs or chondroprotectants - their effect is to maintain the moisture of cartilage cells, inhibit enzymatic action and prevent degenerative processes);
  • Preparations and solutions for external use;
  • osteopathy;
  • Perform special exercises and gymnastics, physical therapy;
  • physical therapy techniques;
  • massage;
  • Vitamin complexes are drugs used to improve metabolic processes in the body.
Various types of physical therapy are available to treat musculoskeletal conditions that cause knee pain.Exercise therapy sessions are easy to follow and can be taken up by anyone of any age, as individually designed sessions ensure that precisely dosed loads are created. For complex treatments, local analgesics such as dimethyl sulfoxide ointment (with contraindications: serious diseases of the kidneys, liver, cardiovascular system, pregnancy, breastfeeding) or anti-inflammatory gel are also prescribed - it is immediately absorbed intoPenetrates deep into the skin to relieve swelling and pain.Using high-frequency technology also eliminates pain: the morphological changes remain, but the pain decreases and becomes easier. In addition, special orthotics are often used - bandages, knee braces, splints, tapes, casts and other similar devices. This allows you to shift the load on your knee and offload it, reducing the risk of re-injury and promoting faster recovery. Rarely used, a plasma lift procedure involves injecting plasma obtained from the patient's own blood directly into the affected knee joint or the soft tissue surrounding it.Sometimes bone realignment surgery or surgery is performed (for example, if bone fragments need to be removed).Your doctor will also prescribe painkillers that won't negatively affect your joint cartilage.Watch your diet – Eating a balanced diet can prevent inflammation.If you have knee problems, you should not self-treat and undergo various surgeries to avoid surgical intervention (surgery) and possible complications. This attitude will only make the situation worse and require more severe and complex treatment. Therefore, it is important to consult a doctor who can make an accurate diagnosis and prescribe effective treatments, procedures, and medications. Take care of yourself and your health!