Der Unfallchirurg
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Cervical spine changed by Bechterew's disease is severely endangered with any increased load. Even decent trauma is enough to produce a fracture with affection of spinal cord. Because of little knowledge in these special items, late diagnosis of overlooked injury is not rare, especially in two-level injuries. ⋯ There were four patients, that would not have suffered cervical spine fracture (minimal injury force) without Bechterew's changes. There is often pulmonary failure through limitation of thoracic movement and cerebral ischemia following rupture of vertebral arteries as typical complications. Mortality (2 cases; 16%) in our collective is less than literature's medium rates (35-57%).
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Tissue defects of the heel region are a challenging problem. Various reconstructive techniques were performed in 44 patients with 59 defects around the heel region, who were treated between 1994 and 1999 following a traffic accident in 27%, a burn injury in 25%, and other traumatic causes in 48%. ⋯ The overall complication rate was 18% with the highest rate after local flap procedures. A therapeutic strategy was developed, which is based mostly on the localization and extension of the defect area.
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C-arm navigation is a new tool in computer assisted surgery. The aim of this study is to evaluate the accuracy of Iso-C-arm based drill holes in the proximal femur. In nine artificial proximal femura, two holes with an angle of 135 degrees and 100 degrees in relation to the shaft axis were drilled in the direction of the femoral head. ⋯ The main plane of deviation in all of the 135 degrees holes was posteriorly, whereas in the 100 degrees holes posterior deviation occurred in four cases, cranial in three cases, and in one case each caudal and anterior deviation occurred. In our opinion, the accuracy of fluoroscopy based navigation applied in the region of the proximal femur is sufficient and reproducible. This technique can be used for implant placement at the proximal femur in the future.
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Traumatic luxation of the ulnar nerve is a very rare injury. In the worldwide literature from 1960 to 2001 we could only find 4 reports concerning this trauma. When we take an exact anamnesis for granted making the diagnosis is very easy and it is not necessary to do highly sophisticated technical examinations. An X-ray and ENG-EMG examination and a precise clinical exploration of course is enough.
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Chronic functional instability is a residual problem after acute ankle sprain. Reasons may be weak ligaments and/or a deficit in the proprioceptive system. Studies have shown that peroneal reaction time (PRT) can be used to quantify proprioceptive performance. ⋯ It was found that PRT is not influenced by extrinsic or anthropometric data. Furthermore, the results prove a significant slackening in PRT with increasing age. Therefore, the patient's age must to be considered in judging the PRT.