Injury
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Open reduction and internal fixation of unstable pelvic ring fractures provides the best stability of fixation as well as the best late clinical results. Whereas several studies have supported this both in biomechanical studies and clinical trials, there is still controversy about the long-term outcome of these injuries. A series of 58 patients who had received surgical stabilization of Tile B- and C-type fractures between 1985 and 1990 were followed up for an average of 28 months. ⋯ Patients suffering B-type fractures showed 79% good and excellent results. Despite the fact that after C-type fractures 50% healed anatomically and 30% healed with a 5 mm or less residual posterior displacement, only 27% of the patients were rated good or excellent. Further studies must be conducted for closer evaluation of risk factors influencing the results after anatomical reconstruction of the pelvic ring.
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3260 patients with pelvic and acetabular fractures were assessed using a standardized documentation form by collating the data on 1905 patients treated at the Department of Traumatology of the Hannover Medical School together with those patients treated between 1991 and 1993 in the German Multicentre Study Group (Pelvis) of the German Trauma Society and the German Section of the AO International. 2551 patients had pelvic ring injuries. 61.7% of the patients were multiply injured. 12.2% were suffering a complex pelvic trauma defined as a pelvic injury with concomitant soft tissue injury. The pelvic ring fracture was classified as stable in 54.8% (type A injury), as rotationally unstable in 24.7% (type B injury), and as unstable in translation in 20.5% (type C injury). There were concomitant acetabular fractures in 15.7%. ⋯ Type B injuries were stabilized in 28.9% and type C injuries in 46.7%. The overall mortality rate was 13.4%, depending significantly on the associated extrapelvic trauma. In complex pelvic injuries, the mortality rate was 31.1% whereas for pelvic fractures without concomitant soft tissue injury the rate was only 10.8%.
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An unstable pelvic ring injury was stabilized with the AO C-clamp in thirty multiply injured patients. The average ISS was 29 (19-57). Transfusions totalled 24 units of blood/fresh frozen plasma/platelets (0-117) on average. ⋯ Definitive stabilization was accomplished after 4.5 days on average (0-15). Complications relating directly to the clamp did not occur. The application of the C-clamp has a clear place in the management of polytraumatized patients with linear unstable pelvic ring injuries.
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A detailed description of pulled elbow is missing from standard orthopaedic text books. Recently it has been reported that the prevalence of hypermobility among children with pulled elbow is higher than that in the normal population and that pulled elbow can be considered to be a consequence of joint hypermobility. Two hundred children with pulled elbow comprising 106 girls and 94 boys (age range 3-84 months, mean age 24 months) were treated and evaluated for signs of hypermobility in a prospective study. ⋯ Comparison of these results with a control group of 100 normal children, in whom 10 (10 per cent) exhibited hypermobility, showed no association between joint hypermobility and an increased incidence of pulled elbow. The anatomical construction of the radial head, relative plasticity of the cartilage and the immature annular ligament in young children possibly predisposes them to pulled elbow, the incidence of which is increasing in our modern physically competitive society where children are participating in a wide range of physically demanding sports activities. Pulled elbows can also occur in children with hypermobility of joints, but there is no evidence that the incidence has increased.