Osteonecrosys is the abnormal and premature death of bone tissue due to a lack of vascularization (blood supply), this genetic and hereditary patient mainly affects men between 30 and 60 years.
In the causes that may be at the origin of this pathology are traumatic antecedents :
- collar fracture
- hip dislocation
Or non-traumatic :
- prolonged use of corticosteroids
- sickle cell disease (hemoglobin genetic disease)
To establish a precise diagnosis taking into account the evolution of the disease, an X-ray and MRI will be necessary.
Depending on the course of the disease, medical treatment may be considered including joint discharge and analgesics, or surgical treatment.
There are several surgical techniques :
- Drilling of the femoral head with or without bone graft
- Femoral Osteotomy
- Joint Replacement : resurfacing prosthesis, mini-prosthesis or total hip prosthesis.