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The thigh forms the section of the leg between the hip and knee. First it borders on the groin region in the front view and on the buttocks in the rear view. The base of the bone is the thigh bone (femur or also femur). This is the longest bone in the human body and is exposed to enormous loads every day. At the upper end, the thigh bone has a special head that fits spherically into the acetabular cup and forms the hip joint with it. At the lower end of the long tubular bone, it forms part of the knee joint with its two joint nodules. The thigh bone is surrounded by various muscles, with the thigh extensors (quadriceps femoris muscle, sartorius muscle) and the thigh flexors (biceps femoris muscle, semitendinosus muscle, semimembranosus muscle) forming a significant part of the muscle mass. In addition, there are the adductors and various other muscles that attach to the thigh bone (for example, hip flexors and calf muscles). Furthermore, numerous nerve pathways (for example the sciatic nerve) as well as large arteries and veins run in the area of the thigh.
In addition to muscular problems, above all impairments of the nerves, but also fractures are to be mentioned as possible complaints in the thigh area. For example, older osteoporosis patients relatively often suffer a femoral neck fracture when falling. Severe thigh pain and difficulty walking after a fall are to be assessed here as indications of a possible fracture. The most well-known complaints due to nerve damage are the pain that can be determined on the back when the sciatic nerve is pinched. However, compression of other nerves, such as the femoral nerve, can also cause discomfort in the thigh. In addition to pain, a feeling of numbness or tingling can also be noticed here. A medically negligible, but for many women from a cosmetic point of view relevant problem in the thigh area is the so-called orange skin (cellulite). Women are affected much more often than men because of their connective tissue structure. Obesity and thick legs promote the development of cellulite, which is caused by changes in the fatty tissue under the skin. It can often be alleviated with the help of various home remedies and therapeutic measures, but it cannot be completely eliminated.
The thigh bone, as part of the knee joint and the hip joint, is relatively frequently affected at its two ends by signs of wear in the form of osteoarthritis, which can be associated with joint pain and restricted movement. This also applies to the necrosis of the femoral head, which is caused by the destruction of the bone substance as a result of insufficient blood circulation and causes severe hip pain. Signs of wear at the lower end of the thigh bone may cause knee pain and restricted movement in the knee joint. Bone wear is favored by incorrect loading and various bone diseases such as osteoporosis. (fp)