Biomedical subjects
Publications and source records attributed to C Vallée.
Spontaneous fractures of the sternum are unusual. They can simulate cardio-thoracic emergencies. A case of stress fracture of the sternum and of the femoral neck in a patient with corticosteroid induced osteoporosis is reported and the peculiar value of CT assessing the absence of tumoral mass is emphasized.
The germ cell tumors are the most common type of testicular malignant tumors (90%). About 30% are revealed by metastasis usually into the retroperitoneum, with clinically normal testis. Ultrasound reveals a bright echogenic focus into the testis which is typical, considering the clinical presentation, for a regressed germ-cell tumor and guides the side of the orchidectomy which allows to suppress a still active tumoral tissue which will not be eradicated by chemotherapy. Two typical cases with sonographic guidance are reported herein and confronted with the cases previously described in the literature.
A 22-year-old woman with an osteoid osteoma of capitate bone presented initially with arthritis of wrist. Bone scan imaging and digital subtraction angiography allowed diagnosis of a nidus. This case draws attention to articular manifestations of osteoid osteoma.
A simple method for immediate paper printing of documents with film illustrations uses a contact print of the mask of the original.
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Measurement of anteversion of cotyle of total hip prosthesis generally involves projection of equatorial guide included in cotyloid piece. Direct measurement of cotyloid anteversion on Arcelin's surgical lateral image showed this method to be a simple, reliable, direct procedure for determination of cotyloid anteversion of total hip prosthesis.
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Post-traumatic preoperative deep vein thrombosis (DVT) was studied by routine bilateral venography in 98 orthopaedic patients admitted more than 48 h (mean: 7 days) after the limb trauma, who had not been given prophylactic anticoagulation. All these patients had undergone long distance travel under medical supervision, having been injured a long way from the medical centre. Ages ranged from 15 to 77 years (mean age: 38 years). 85 patients had been previously free of any of the usual risk factors for DVT. Routine venography showed up DVT in 39 patients (40%). Four DVT were bilateral; only seven were symptomatic. When DVT was proved, heparin treatment by infusion pump was given for 15 days before surgery was performed.
Video recordings during radiodynamic studies of miction (ERDM) in 50 patients with spinal cord injuries produced images markedly superior in quality to permictional films in cases of dysuria. Correlation with cystosphincterometry (CSM) findings were good for normal cases. Dynamic studies were more effective than CSM for the neck, but less reliable for the detrusor and striated muscle on the condition than an electromyogram had been performed. In patients with complete spasticity the type of miction cannot be predicted from the level of the lesion.
Intravenous urography and ultrasonography were performed routinely, and at the same time, in 50 patients with spinal cord injuries, to compare diagnostic efficacy. Ultrasound was found to be as reliable as intravenous urography in 92% of renal and bladder explorations and to supply additional data on these regions in 6% of cases. It was also found to be equally effective for ureteral dilatation cases, although the site and nature of the obstacle could not be established except in 66% of patients. Ultrasound imaging should therefore play an important role in the urologic surveillance of these patients.
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67 patients were transferred to a traumatology centre within a mean period of 8 days following an accident in order to envisage treatment of their fractures. Routine pre-operative phlebography was undertaken in 37 patients. It detected the presence of thromboses in 46% of cases. Anticoagulant treatment was started immediately and the date of orthopaedic surgery delayed because of the risk of pulmonary embolism.
We had the opportunity to observe a case of cyst of the medial meniscus of the knee. We observed unusual findings; association with a meniscal tear and communication through the tear with the articular cavity.
A case of pelvic lipomatosis is presented and the literature is reviewed. The radiologic signs enable the radiologist to make an accurate diagnosis. This should avoid unnecessary laparatomy.
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