What is a Femoroacetabular Impingement?
The upper part of the femur and the nest area of the pelvic bone (acetabulum) form the hip joint together. The hip joint has an angular movement in a total of 340 degrees in 6 different directions. These movements are based on the center of rotation of the hip joint. The sliding movement of the knee joint is not applicable to this joint. The hip joint carries 4 times the weight of the body while walking. This load can also form shear forces on the articular surface, especially when sitting and kneeling. Labrum is the name of the circular structure, a nest shaped and a ligament form a contiguous structure surrounding the acetabulum. Labrum allows both bones and capsule to move in harmony during movements. Labrum allows both bones and capsules to move in harmony.
What are the Symptoms of Femoroacetabular Impingement?
Femoroacetabular impigment is theoretically one of the causes of hip arthritis. It is thought that the local buckling between the femoral head and the neck part and the anatomical difference of the CAM lesion are the cause of the impingement syndrome.Especially in cases where the hip turns inwards and twists forward (kneeling or cross legs), the region on the front upper side of the acetabulum is compressed. Over time, the protective cartilage tissue of the hip joint and the labrum are damaged. Even bone lesions (Pincer) on the edge of the acetabulum develop.
Patients complain of pain in the anterior part of the hip. They may feel pain and stiffness in the anterior part of the hip as they are sitting, getting up, kneeling or crossing their legs.
Patients mostly have complaints of pain, stiffness and swelling, especially after years of repeated movements such as sitting, getting up, or sport activities including sudden rotational movements.
