Publications by authors named "Ritter G"

The present study is based on a multicenter documentation system which includes standardized information on a total of 1271 patients with multiple sclerosis (MS). In 441 (34.7%) cases the optic nerve was involved at the first appearance of the disease, and in 212 (16.

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Scintigraphy and the stimultaneously effected osteoscintimetry of the pelvis and of both hip joints offers the possibility of a safe early diagnosis of Perthes' disease directly after manifestation of the clinical symptoms, two months before the roentgenologically identifiable, discrete changes of stage I have occurred, or four months before the clear roentgenological visualisation of the disease (stage II). Moreover, scintigraphy enables detection of the time at which restitution or revascularisation of the necrotic bone of the epiphysis of the head of the femur sets in, and to draw further conclusions from the scintigraphic and scintimetric pattern of results, on the prognosis and further course (with time) of Perthes' disease.

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In a prematurely born infant of a diabetic mother a purulent arthritis with osteomyelitis of the elbow occurred 18 days after an enterobacter aerogenes-septicemia was proved. Enterobacter (aerobacter) aerogenes is a nosocomial gramnegative germ, that is more and more regarded responsible for infection of the newborn in intensive care units. In accordance with the literature recording a high rate functional loss after septic arthritis also our patient suffered from a mobility deficiency in his right elbow a year after the onset of the disease.

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A variety of 99m-Tc-phosphate compounds are sensitive and reliable for scintigraphic diagnosis of bone diseases. Therefore bone scan has become a safe method for evaluating patients with suspected acute hematogenous osteomyelitis. So we were able to perform early and adequate treatment without evidence of bony changes in the radiograph.

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3374 accidents occurring on the field of sport during the years 1975--1977 accounted for 19% of all accidents dealt with at the Institute of Kinderchirurgie in Graz. 51% of the accidents were caused by the typical winter sports: skiing, tobogganing, ice-skating and ski-jumping with skiing accounting for 75% of the accidents. The fracture localization typical of the different kinds of winter sport is dealt with in detail.

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Attempts at total hip replacement in the presence of unstable acetabula--which may be caused by a recent fracture or pseudarthrosis--are doomed to failure if conventional implantation technics are used. Such attempts lead inevitably to a rapid loosening of the cup. This article describes a newly developed implant which simultaneously re-establishes acetabular stability while solidly anchoring the cup.

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Within the framework of an epidemiologic field study conducted in South Niedersachsen a standardised questionnaire was used to obtain data on the social and medical situation of persons with multiple sclerosis. Of the 195 people with multiple sclerosis questioned in that area in 1976 answers were received from 178 (91%). The mean age was 46 years, the average history of disease 15 years.

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Cervical myelography by means of lumbar application of metrizamide was performed on 110 patients. The exploration technique, the results, the quality of the myelograms, and the side effects observed are discussed. The most frequent complaint was headache.

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The serological responses of 195 multiple sclerosis (MS) patients and 251 controls were tested against 6/94-parainfluenza virus, which was previously isolated from brain tissue of two patients with MS. The hemagglutination-inhibition titers of greater than or equal to 1: 128 were found more frequently in MS patients (21.5%) than in controls (14.

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The mechanical force flow distribution produced by the hip joint endoprosthesis in the remaining, living femur and its deviation from that of the natural bone have a considerable influence on the quality of the bone-endoprosthesis compound and its duration of life. The loads are calculated for the natural bone as the reference system as well as the compound with conventional endoprostheses and a new type, the Tension-band-Endoprosthesis (R-G). For the calculation the finite element method is used by application of three-dimensional tetrahedron elements.

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