The hip joint is formed by the head of the femur, which is more or less spherical; on the other side the pelvis has a hollow, also spherical, that wraps the head. Over time the surface of the joint undergoes a progressive wear that makes the catilago rough increasing the friction between the 2 surfaces that form the articulation.
It usually produces pain in the groin that increases when walking, the pain can extend in front of the thigh toward the knee. Less often, it can cause pain on the outer face of the thigh and on the buttock. With certain movements (internal rotation) of the hip may also appear pain and limited range of movement, these symptoms are usually present from the onset of the disease. On many occasions the pain is accompanied by lameness.
It is slightly more frequent in women, and usually appears later than osteoarthritis of the knee, from 70 to 80 years. Therefore it can be said that age plays a fundamental role in this type of osteoarthritis. It can appear in younger people, but when it does it is usually due to factors that predispose to a faster progression of joint wear, such as: deformities of the hip joint, rheumatic diseases, a history of trauma or infections in this joint, Necrosis of the femoral head. There is also a hereditary predisposition.
Although in the case of hip artosis no obvious relationship has been found between obesity and the progression of osteoarthritis, all specialists advise avoiding overweight since the disease is better tolerated with an appropriate weight and performing daily physical activity . Analgesics and anti-inflammatories are useful for pain control as well as disease-modifying medications. Surgery is reserved for cases in which the pain is not controllable with the usual medication and / or the patient sees limited daily activities due to pain.