1/5. Perthes disease conplicated by so called osteochondritis dissecans.A patient was followed for about 11 years from the onset of Perthes disease (age 12). The radiographs during the period demonstrated the actual development of a free ossicle which was formed by resorption of a portion of the original femoral head, resulting in a wafer and subsequent enlargement by new bone formation. Changes of a similar nature have been described in idiopathic necrosis of the femoral heads in adults.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
2/5. Complete destruction of both femoral heads following idiopathic necrosis of the femoral heads in a diabetic patient with hyperuricemia and hyperlipoproteinemia.A practically complete destruction of both femoral heads including the femoral necks and acetabula was encountered in a 69-year-old patient with diabetes, which varied in intensity. This destruction, documented by radiographs which had been taken 8 years prior, had started as the typical picture of "idiopathic femoral head necrosis". In addition to diabetes, hyperuricemia and hyperlipoproteinemia were present at the time when the femoral head necrosis was first evidenced. One episode of gout was recorded. In recent years, following therapy, the hyperurecemia and hyperlipoproteinemia had normalized. The question is raised, as to whether or not the present radiological findings represent a complication of aseptic femoral head necrosis, combined with a diabetic arthropathy of the hip joints. Details of the angiographic findings and a spondylopathy, which have all the characteristics of a neuropathic spondylopathy, would favor this hypothesis. When associated with a diabetic condition, generalized osteoporosis and hypertrophic spondylosis of such a particular nature require special mention.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
3/5. osteonecrosis of the femoral head in lymphoma patients treated with combined chemotherapy including corticosteroids.osteonecrosis of the femoral head developed in two patients with malignant lymphoma treated with combined chemotherapy. pain was the main symptom. It was not possible to radiographically distinguish the necrotic lesions from metastatic tumour growth, and in both cases only histological examination revealed the true nature of bone destruction. The large doses of corticosteroids included in the treatment regimens were most likely of more importance in the etiology of the necrosis than the cytostatic drugs proper.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
4/5. Traumatic posterior dislocation of the hip in children.Eighteen cases of traumatic dislocation of the hip in children between two and a half and twelve years of age were treated by closed reduction. The patients presented at our hospital 26 hours to 75 days after injury. All the cases had posterior dislocation of the hip. Closed reduction, either by manipulations or by heavy traction and gradual reduction, was satisfactorily achieved in all the cases. Avascular necrosis was seen in one case only. The interval between dislocation and its reduction, the nature of the injury, the age of the patient, the type of treatment and the period of time in which the patient bears no weight do not seem to exert a significant influence on final results. All the patients were followed up from two to seven years.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |
5/5. The "sagging rope sign" in avascular necrosis in children's hip diseases--confirmation by 3D CT studies.growth disturbance of the proximal femoral epiphysis and physis secondary to avascular necrosis (AVN) in a variety of children's hip disorders produces changes in the femoral head and neck that make radiographic interpretation difficult. The enlarged overhanging femoral head produces radiographic markings on the femoral neck which are sometimes confusing. These have sometimes been misinterpreted as growth arrest lines. Apley and Wientroub reintroduced Perkins' description of the "sagging rope" sign in AVN of the femoral head, and Clarke clarified that this puzzling radiographic transverse metaphyseal line overlying the femoral neck in fact represents the margin of the femoral head rather than a growth arrest line. Their report was made after studying plain and stereoscopic radiographs alone. Our review of 23 cases of femoral head AVN in children, documented by 3 dimensional computerized tomographic (3D CT) radiographs of the femoral head and pelvis, confirms Clarke's view of the nature of the "sagging rope" sign. These sophisticated radiographic studies provide new detail and understanding of head-neck relationship in AVN which allows better planning for surgical correction of hip disorders in children.- - - - - - - - - - ranking = 1keywords = nature (Clic here for more details about this article) |