Coxa profunda refers to a deep acetabular socket. Acetabular protrusion is intrapelvic displacement of the acetabulum and femoral head, so that the femoral head projects medial to the ischioilial line. Over time, a pyncer-type lesion develops, due to acetabular overcoverage, with consequent lesion of the acetabular labrum and subsequently acetabular cartilage. It is therefore one of the causes of hip osteoarthritis of the young adult, with great limitation of mobility of the hip joint and pain.
In mild forms, treatment can be performed by hip arthroscopy to reduce acetabular overcoverage and allow better biomechanics of the joint, which delays the evolution to osteoarthritis of the hip.
In intermediate forms, in which arthroscopic hip surgery does not play a clearly beneficial role, intra-articular injections of platelet growth factors (PRPs), stem cells derived from fat, collagen or hyaluronic acid are a satisfactory treatment to control the symptoms, especially the pain, although it will not improve the arch of mobility of the hip.
In the severe forms with already degenerative changes, the implantation of a total hip prosthesis (PTC) will be the treatment of choice, eliminating pain and recovering a normal mobility arch.
