What Causes Pain in the Right Knee and Numbness in the Leg?
There are generally three reasons for pain and numbness in the right knee, which often refer to a dull pain sensation in the right knee joint. Common causes include inflammation caused by soft tissue injury of the knee joint, osteoarthritis, and sports injuries to the knee joint. These conditions require patients to seek medical treatment promptly in order to obtain a certain level of relief. Furthermore, when experiencing pain and numbness in the right knee, it is important to rest adequately and avoid physical fatigue.
First, soft tissue injury, strain, and aseptic inflammation of the knee joint. This type of condition is more common among young and middle-aged individuals, often related to sports activities such as playing ball, jumping, or other sports-related injuries. Symptoms include pain around the knee joint, limiting its range of motion, often accompanied by local tenderness and a sensation of soreness and tightness. Sometimes, there may be effusion leading to knee joint swelling. In such cases, rest, local medication, and oral medication are typically prescribed for treatment and relief.
Second, osteoarthritis. This condition is prevalent in middle-aged and elderly individuals, with a general incidence rate of around 60% to 80%. The main symptom is knee pain, which may worsen with movement. It is often associated with cold exposure or sports-related strain and may cause significant pain, joint effusion, and limited flexion and extension of the knee joint. Treatment typically involves warmth, rest, local immobilization, and oral administration of non-steroidal anti-inflammatory drugs and amino sugar medications. In severe cases, knee joint puncture and intra-articular injection of sodium hyaluronate may be required. A small number of patients may require surgical intervention due to severe joint degeneration that alters the alignment of the knee joint, leading to varus or valgus deformity.
Third, sports injuries to the knee joint, commonly seen in extreme sports such as skiing. These injuries can easily damage the anterior cruciate ligament or meniscus, causing soreness in the knee joint.