Knee often thump is what happened _ walking knee thump is what happened Many people will have this experience, when doing squatting action, the knee joint will issue a “click click click” sound, especially for the elderly, knee suddenly “thump thump The sudden “thump” in the knee can sometimes be a little unsettling. This may be the body’s alarm that there is a problem with the knee joint. A. What is knee popping The knee is the largest joint in the body, and the femur above it is the most frequent and thickest long bone in the body, which can convey the strong power provided by the quadriceps to the tibia below. The knee joint is under pressure, and the directional force generated by the counter deformation can reach 2 to 4 times the weight. The knee joint is also the most complex joint in the body, and its stability requires the maintenance of ligaments and menisci. Knee popping, also known as popping knee, is the sound made by the tendons sliding around the joint when the knee is moving. Knee popping is divided into physiological popping and pathological popping. Physiological popping When the knee joint remains stationary for a long time, sudden flexion, extension and pulling movements will cause the knee to pop. This is a normal condition and does not require treatment. Physiological rattles meet the following four conditions: 1, only occur when the joint is suddenly pulled or flexed 2, the joint must have a certain period of rest before the rattle 3, the sound is crisp, single, not repeated 4, not accompanied by pain or discomfort, after the rattle there is often a sense of relief These rattles occur because the joint is pulled or flexed, expanding the joint cavity, so that the pressure in the joint cavity continues to fall, resulting in dissolved synovial fluid. This causes the gas dissolved in the synovial fluid to precipitate out and form tiny bubbles. These tiny bubbles will then fuse with each other to form a larger bubble, which will rupture or vibrate together with the synovial fluid, resulting in a crisp sound. When the knee joint is physiologically rattling, the capillaries and peripheral nerves around the joint are stimulated, thus increasing local blood circulation, which helps to relieve spasm and anti-inflammation (also known as TCM’s tendon relaxation and activation) On the other hand, after the rattling occurs, the flexibility of the joint will increase, which is beneficial to the movement of the joint. Pathological ringing is caused by various pathological factors in or around the joint, and is a mechanical disorder that occurs during the movement of the joint. It should be noted that pathological knee rattling is not a disease in itself, but a symptom of a disease. Three 8 points indicate a pathological problem in the knee joint Degenerative osteoarthritis (result, not a symptom) Low, dull and frequent ringing from the patellofemoral joint on the outside of the bone, along with joint swelling and occasional interlocking signs, MRI can see joint degeneration, meniscus “island-like”. Arthroscopy may reveal degeneration of the articular cartilage and meniscus, and osteophytes compressing the ligaments and joint capsule. The symptoms include morning stiffness, weakness, and coldness. Regular causes include: 1. weakness of the gluteal muscles, if the medial adductor muscle group is tense, an X-shaped leg will be formed, the lateral meniscus joint gap will become smaller, and the process of walking and standing will easily lead to joint wear; 2. flat feet, arch collapse, accompanied by foot valgus, talocrural joint rotation forward, and heel valgus. From the perspective of the joint chain, the tibia is internally rotated, while the patella between the tibia and femur is shifted outward to maintain the body’s center of gravity, the femur is internally rotated, the tibia is externally rotated relative to the femur, and the pelvis is tilted forward. At this time, if you do standing, running and other sports that require weight-bearing of the knee joint, the force cannot be evenly distributed to the inner and outer meniscus, but is only concentrated on the medial side. Over time, the medial meniscus of the knee is easily damaged, and pathological popping occurs. Patellofemoral joint disorder Pre-existing flat is common in those with contracture of the support band, shallow flat condyles, and high/low patellar position. The anterior knee pops with a crisp or low dull sound, high frequency, with rubbing or twisting sensation, poor patellofemoral hooking, peripatellar tenderness, and positive grinding and negative resistance tests. Axial radiographs can indicate poor patellofemoral joint adaptation, and orthopantomographs can show high/low patellar alignment. Arthroscopy may reveal patellar valgus or subluxation more commonly and cartilage degeneration on the patellofemoral articular surface. Iliotibial fasciculus contracture is a high frequency, painless popping and misalignment of the knee joint when it is straightened. The intra-articular structures are normal and are caused by momentary changes in the tension of the iliotibial bundle resulting in tibiofemoral impingement. When the iliotibial bundle is tense, it moves backward along the lateral femoral condyle with knee flexion. When the iliotibial bundle is straightened and tense, it rubs against the lateral condyle, and the rubbing is most pronounced when the knee is flexed 20° to 30°. Repeated, excessive friction can irritate the iliotibial bundle and its medial bursal tissue; this symptom is primarily swelling and is divided into acute and chronic. Acute is mostly reversible, mostly on the anterior aspect of the thigh above the patella (commonly known as the kneecap), and can be relieved or even disappear with rest. Chronic swelling is common in the two knee eyes (the depression under the knee that resembles the eye of the knee), which are accentuated by chronic hyperplasia of the fatty tissue below the patella. Meniscal problems Synovial chondromatosis The etiology is not known, mostly secondary to knee trauma, and is rare clinically. It may be associated with joint interlocking and limitation of flexion and extension. If the calcification is severe, it can be seen on X-ray, and MRI can confirm the diagnosis. Arthroscopy may reveal synovial hyperplasia and calcification, embedded in the joint space, rubbing or impinging on the cartilage. Choroidal nodular synovitis is of unknown etiology and can be triggered by trauma. Low popping sound, indeterminate location, low frequency, diffuse knee pressure pain with joint swelling, interlocking is rare. Synovial hyperplasia may be seen on MRI in the form of nodules. Arthroscopy may reveal synovial congestion and hyperplasia with iron-containing heme deposits that erode the articular cartilage and ligaments. Interdigitating ligament stale injury caused by trauma. Knee instability leads to popping, low frequency and dullness, which may be accompanied by interlocking and a positive drawer test. The diagnosis can be clearly made by MRI. Arthroscopy may reveal ligament disruptions embedded in the joint space or cartilage damage. Rheumatoid arthritis Four knee joint pathological popping treatment 1, the establishment of the arch Method one Hold the patient’s forefoot in one hand to form a transverse arch, the other hand holds the heel, both hands together to form a longitudinal arch, let the patient feel the arch build, 3 to 5 seconds each time, repeat 10 times. Method 2 Wear custom insoles to cushion their arches and return the talofibular joint to neutral position. 2, activation of the gluteus maximus Method 1 1, the patient is in a prone position, with the femur slightly internally rotated and the knee flexed 2, the therapist’s hand is placed on the back of the patient’s thigh, let him or her inhale, and when exhaling, the hip is slowly extended backwards, giving a resistance against 3, 10 to 15 seconds each time, 6 per group Method 2: gluteus bridge 1, lie on your back, keep two fists between your feet, bend your knees and hips, with your toes slightly facing outward 2, then Gluteus maximus muscle force, the pelvis upward, while thinking about clenching the buttocks 3, after the top up, you can feel their own buttocks, must be tight bang Note: many people in doing hip bridge, the abdominal muscles are not tightened, so upward when the top will be excessive arch waist, resulting in the waist muscle force. When doing the hip bridge must be tightened abdominal muscles. 3, the iliotibial bundle of maneuvers to loosen 1, the patient supine position, find the anterior superior iliac spine, put the hand flat on the anterior superior iliac spine 2, ask the patient to alternate internal rotation, external rotation of the hip joint. When internally rotating the hip joint, you will feel the broad fascial tensor muscle become firm and elliptical 3, press and relax the broad fascial tensor tendon No matter life or sports, you need healthy knees. It is quite unfortunate that many people have knee injuries due to neglecting proper exercise methods and lifestyle habits. If you already have a popping knee in general, it is important to pay attention to the way you exercise in your daily exercise routine. If the symptoms are not eliminated for a long time, if they are not effective even after the above-mentioned treatment, or if the symptoms are even aggravated, a film should be taken in time to see if surgery or further treatment is needed.