FHNE is a salvage procedure that is intended to reduce hip pain in cases where other surgery is not appropriate. It is used in the management of avascular necrosis of the femoral head (also known as Legg-Calve-Perthes disease), fractures of the femoral head or growth plate, hip luxation (that cannot be reduced) and failed total hip replacement.
The surgery involves using a special type of saw called an oscillating saw to remove the femoral head (‘ball’ of the ‘ball and socket’ joint). The oscillating saw makes a precise cut across the bone and is preferable to the old fashioned osteotome and mallet technique. This reduces the bone-bone contact of the joint and therefore the pain associated with chronic disease or cartilage erosion.