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Biomedical subjects

B Augereau

Publications and source records attributed to B Augereau.

At least 55 records · Page 3Linked to original sources

[The peroperative isotopic location of osteoid osteomas and other lesions exhibiting increased uptake on scintigraphy].

The technique, advantages and pitfalls of the isotopic localization and control during operation in orthopaedic surgery were evaluated throughout 28 interventions on lesions, which exhibited an increased uptake of a radioactive bone-seeker: the dimethyl-aminodiphosphonate, provisionally designated SF44 (Laboratoires Solabco, Coutras, France). For bone scanning, following the injection of this radiopharmaceutical that increased by 25% the lesion to normal bone ratio compared to the data for the diphosphonates in current use, the localization of lesions at surgical sites was carried out with the use of a sterilisable small radiation probe of a circular cross section 2 mm in diameter (Quartz et Silice, Paris, France). The probe was connected to a portable electronic device that converted the rates of radioactive disintegration into an acoustic signal, which increased with increasing radioactivity (Novelec, Meylan, France). The method was atraumatic and has proved to be useful at various times of the operation. More often, it was used to locate the lesion on the exposed bone. It enabled monitoring the progress of excisions and allowed to shorten their dimensions. The method was of great value at the end of the intervention for ensuring a complete excision as indicated by the lack of any residual focus of increased uptake detectable on the periphery of the operative site. Isotopic control during an operation is fully efficient to locate osteoid osteomas and other circumscribed lesions of the skeleton that give rise to an increased uptake of radioactivity.

Adolescent↗

[Total hip and knee arthroplasties in hemophilia. Apropos of 27 cases].

Thirteen total hip and 14 total knee prostheses were performed in 21 haemophilic patients. Nineteen had severe factor deficiency. Their average age was 43 years. Pain was the only indication for hip prostheses. All the hip arthropathies were of Arnold stage IV or V. For the knees, the indication was permanent pain with patello-femoral involvement in nine cases. In other cases, stiffness and instability was the indication. Seven knees, one out of two, had a flexion deformity of more than 30 degrees and only in four knees, one in three, was the range of flexion greater than 90 degrees. The quadriceps was extremely atrophied in eight knees and was always fibrotic. The arthropathies were of stage IV in three cases and stage V in eleven cases. There was pre-operative valgus deformity, greater than 20 degrees in three cases. At the hip, all 13 total prostheses were cemented. The 11 patients had factor replacement for an average of 21 days. No inhibitor was present pre-operatively or developed after operation. Early complications were rare: two moderate hematomata of the hip and one haematoma of the homolateral psoas. The late complications were not unusual: two aseptic bipolar loosenings after eight and nine years. At long-term follow-up, with a mean of four years and one month, 77 per cent of the hips were painless and stable with a good range of movement. Eight per cent were painless and stable but had some limitation of flexion. Fifteen per cent were failures. At the knee, a Guepar I knee was inserted in four cases, a Total Condylar knee in eight cases and a Kali knee in two cases. All the patients had factor replacement for 24 days. No post-operative inhibitor developed. The early complications were three superficial skin necroses, four deep hematomata and one transient common peroneal nerve palsy. The late complications were one permanent dislocation of the patella and one bipolar septic loosening with septic pyaemia which needed an arthrodesis and required 79,290 International Units of factor VIII, 72 units of packed cells and 28 bottles of fresh plasma. After a mean follow-up of two years and five months, five knee prostheses had a very good results, four a fair result and five a bad result.

Adult↗

Extraskeletal mesenchymal chondrosarcoma: case report and review of the literature.

A case of extraskeletal mesenchymal chondrosarcoma in a 62-year-old woman is reported. This unusual sarcoma was localized in the right thigh (quadriceps) and treated with a combination of surgery, chemotherapy and radiotherapy. Sixty-three cases were found in the literature, with neurologic localization in 29 cases and muscular localization in 34 cases. Among clinical features, a significant difference in age at the time of diagnosis was found between the two localizations, which strongly suggests the possibility of two different types of extraskeletal mesenchymal chondrosarcoma.

Angiography↗

[Non-tuberculous abscesses of the psoas. A case of apparently primary abscess of the psoas due to Staphylococcus aureus].

Abscess of the psoas, which is a well recognized complication in tuberculous osteoarticular infections, can also occur in certain regional diseases of the bones or viscera: common germ osteitis, diverticulosis, colic cancer, appendicitis and, above all, Crohn disease. Abscess of the psoas can also present as an apparently primary pyogenic muscular infection. A case is reported of an abscess of the psoas due to Staphylococcus aureus, which occurred spontaneously in an apparently healthy 50-year-old woman, was cured by surgical drainage, and whose course confirmed its primary nature.

Abscess↗