Transcranial doppler detection of fat emboli.
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BACKGROUND AND PURPOSE: The fat embolism syndrome (FES) is characterized by the simultaneous occurrence of pulmonary and neurological symptoms as well as skin and mucosal petechiae in the setting of long-bone fractures or their surgical repair. Its pathophysiology is poorly understood, and effective treatments are lacking. We present 5 patients with long-bone fractures in whom in vivo microembolism was detected by transcranial Doppler. METHODS: Five patients with long-bone fractures were monitored with transcranial Doppler for microembolic signals (MESs) after trauma. Two patients also had intraoperative monitoring. A TC-2020 instrument equipped with MES detection software was used. Detected signals were saved for subsequent review. Selected signals satisfied criteria defined previously and were categorized as large or small. RESULTS: Cerebral microembolism was detected in all 5 patients and was transient, resolving within 4 days of injury. Intraoperative monitoring revealed an increase in MESs during intramedullary nail insertion. The characteristics of MESs after injury varied among patients, with large signals being more frequent in the only patient with a patent foramen ovale. CONCLUSIONS: Cerebral microembolism after long-bone fractures can be detected in vivo and monitored over time. These findings may have potential diagnostic and therapeutic implications. (+info)
Unusual complications in an inflammatory abdominal aortic aneurysm.
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An unusual case of an inflammatory abdominal aortic aneurysm (IAAA) associated with coronary aneurysms and pathological fracture of the adjacent lumbar vertebrae. The associated coronary lesions in cases of IAAA are usually occlusions. In the present case, it was concluded that a possible cause of the coronary aneurysm was coronary arteritis and the etiology of the pathological fracture of the lumbar vertebrae was occlusion of the lumbar penetrating arteries due to vasculitis resulting in aseptic necrosis. Inflammatory AAA can be associated with aneurysms in addition to occlusive disease in systemic arteries. The preoperative evaluation of systemic arterial lesions and the function of systemic organs is essential. (+info)
Health care consequences of falls for seniors.
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OBJECTIVES: This article examines falls that caused a serious injury among people aged 65 or older living in private households. Based on an analysis of people followed over a two-year period, it focuses on the association of a fall in 1994/95 with subsequent health care. DATA SOURCE: The data are from the household component of the 1994/95 and 1996/97 cycles of the National Population Health Survey conducted by Statistics Canada. Longitudinal and cross-sectional data are from a sample of 2,081 people aged 65 or older in 1994/95 for whom data were available and who were still alive in 1996/97. An additional 11,282 elderly people in this age group provided cross-sectional data in 1996/97, yielding a total sample of 13,363. ANALYTICAL TECHNIQUES: In addition to descriptive statistics, multivariate analyses were used to study the associations between injurious falls and subsequent entry into care, controlling for selected factors. MAIN RESULTS: After controlling for age, decline in ability to perform activities of daily living, and other factors, the odds of entry into care were three times as high for seniors who reported an injurious fall in 1994/95 as for those who did not. (+info)
Failure of reduction with an external fixator in the management of injuries of the pelvic ring. Long-term evaluation of 110 patients.
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We reviewed 110 patients with an unstable fracture of the pelvic ring who had been treated with a trapezoidal external fixator after a mean follow-up of 4.1 years. There were eight open-book (type B1, B3-1) injuries, 62 lateral compression (type B2, B3-2) and 40 rotationally and vertically unstable (type C1-C3) injuries. The rate of complications was high with loss of reduction in 57%, malunion in 58%, nonunion in 5%, infection at the pin site in 24%, loosening of the pins in 2%, injury to the lateral femoral cutaneous nerve in 2%, and pressure sores in 3%. The external fixator failed to give and maintain a proper reduction in six of the eight open-book injuries, in 20 of the 62 lateral compression injuries, and in 38 of the 40 type-C injuries. Poor functional results were usually associated with failure of reduction and an unsatisfactory radiological appearance. In type-C injuries more than 10 mm of residual vertical displacement of the injury to the posterior pelvic ring was significantly related to poor outcome. In 14 patients in this unsatisfactory group poor functional results were also affected by associated nerve injuries. In lateral compression injuries the degree of displacement of fractures of the pubic rami caused by internal rotation of the hemipelvis was an important prognostic factor. External fixation may be useful in the acute phase of resuscitation but it is of limited value in the definitive treatment of an unstable type-C injury and in type-B open-book injuries. It is usually unnecessary in minimally displaced lateral compression injuries. (+info)
Fracture risk is increased in Crohn's disease, but not in ulcerative colitis.
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AIMS: To study fracture rates and risk factors for fractures in patients with Crohn's disease and ulcerative colitis. METHODS: 998 self administered questionnaires were issued to members of the Danish Colitis/Crohn Association, and 1000 questionnaires were issued to randomly selected control subjects. 845 patients (84.5%) and 645 controls (65.4%) returned the questionnaire (p<0.01). 817 patients and 635 controls could be analysed. RESULTS: Analysis was performed on 383 patients with Crohn's disease (median age 39, range 8-82 years; median age at diagnosis 26, range 1-75 years), 434 patients with ulcerative colitis (median age 39, range 11-86 years; median age at diagnosis 29, range 10-78 years), and 635 controls (median age 43, range 19-93 years, p<0.01). The fracture risk was increased in female patients with Crohn's disease (relative risk (RR) = 2.5, 95% confidence interval (CI) 1.7-3.6), but not in male patients with Crohn's disease (RR = 0.6, 95% CI 0.3-1.3) or in patients with ulcerative colitis (RR = 1.1, 95% CI 0.8-1.6). An increased proportion of low energy fractures was observed in patients with Crohn's disease (15.7% versus 1.4 % in controls, 2p<0. 01), but not in patients with ulcerative colitis (5.4%, 2p=0.30). The increased fracture frequency in Crohn's disease was present for fractures of the spine, feet, and toes and fractures of the ribs and pelvis. Fracture risk increased with increasing duration of systemic corticosteroid use in Crohn's disease (2p=0.028), but not in ulcerative colitis (2p=0.50). CONCLUSIONS: An increased risk of low energy fractures was observed in female patients with Crohn's disease, but not in male patients with Crohn's disease or in patients with ulcerative colitis. (+info)
Use of a delayed cortical bone graft to treat diaphyseal defects in the forearm.
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The technique of delayed autogenous cortical bone grafting was used in 17 patients (6 women, 11 men, with an average age of 22 years) to treat diaphyseal defects resulting mainly from closed or compound fractures complicated by infection and bone tissue loss. Bones affected were the humerus in 1 case, the radius in 7 cases, the ulna in 4 cases, the radius and ulna in 2 cases, the first metacarpal in 1 case, and the femur in 2 cases. The average length of the defect was 5.7 cm and the graft, prepared from the anteromedial aspec of the tibia, was at least 1.5 cm longer than the defect. The graft application was combined with rigid internal fixation using an AO 3.5 mm DCP plate in most cases and this permitted early active movement. Union occurred without the need for any additional grafting procedure in 14 patients and within an average of 23 weeks. In most cases there was an increase in the thickness of the graft probably as a result of osteo-induction, with consequent restoration of the original diameter of the recipient bone diaphysis. The most frequent complication was infection (4 cases), and this was controlled by means of debridement, cleaning and antibiotics. A delayed graft provides mechanical support, incorporates quickly and is therefore a reasonable alternative method for treating diaphyseal defects of long bones, particularly in the upper limb. (+info)
Fractures due to hypocalcemic convulsion.
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We report on two cases of patients in whom hypocalcemic seizures during hemodialysis led to right scapular body fracture in one and bilateral femoral neck fractures in the other. (+info)
Ultrasound imaging of forearm fractures in children: a viable alternative?
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OBJECTIVE: A pilot study to investigate whether ultrasonography can be reliably used to demonstrate uncomplicated greenstick and torus fractures in children. METHOD: Children between the ages of 2 and 14 years with a high clinical suspicion of a non-articular, undisplaced forearm fracture were included. Ultrasound imaging of the injury was performed by a consultant radiologist who gave an immediate report. Standard radiographs of the forearm were then obtained and the patient treated in the normal way. The radiograph was formally reported on at a later date. RESULTS: 26 patients were included. There was an absolute correlation between the ultrasound and radiographic findings. The procedure was well tolerated. CONCLUSION: Ultrasound seems effective for detecting uncomplicated forearm fractures in children. The procedure is easy to perform and the images easy to interpret. A larger study will now be undertaken to confirm these initial findings. (+info)