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Idiopathic necrosis of the femoral head in adults occurs in about 2 to 3% of all cases of degenerative hip disease. Advanced necrosis with collapse of the head offers a difficult therapeutic problem in younger patients. Early radiological diagnosis is therefore important. The typical, early radiological findings were studied in a hundred patients with idiopathic necrosis of the femoral head. They consist of an area of sclerosis at the junction of the head and neck, with a periosteal response on the inferior margin of the neck. The relationship of these changes with mechanical stress and defective blood supply is discussed. Signs of more advanced necrosis are band-like sclerosis at the point of demarkation and sub-chondral decalcification of the femoral head. Recognition of the early radiological features improves the chances of successful treatment, particularly in the lower age group.
F U Niethard, and
W Puhl
May 1977,
Ryumachi. [Rheumatism],
F U Niethard, and
W Puhl
January 1974,
Verhandlungen der Deutschen Gesellschaft fur Pathologie,
F U Niethard, and
W Puhl
March 1979,
Nihon Seikeigeka Gakkai zasshi,
F U Niethard, and
W Puhl
February 1966,
Zeitschrift fur Orthopadie und ihre Grenzgebiete,
F U Niethard, and
W Puhl
September 1979,
Revue de chirurgie orthopedique et reparatrice de l'appareil moteur,
F U Niethard, and
W Puhl
November 1965,
The Journal of bone and joint surgery. British volume,
F U Niethard, and
W Puhl
March 1964,
Annals of the Royal College of Surgeons of England,
F U Niethard, and
W Puhl
October 1981,
Zeitschrift fur Orthopadie und ihre Grenzgebiete,
F U Niethard, and
W Puhl
January 1971,
Modern trends in rheumatology,
F U Niethard, and
W Puhl
October 1969,
Schweizerische medizinische Wochenschrift,
