Der Unfallchirurg
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We report on a 16-year-old boy with deformity of the forearm with painful functional limitation after a fracture of the distal radius associated with an unapparent lesion of the distal physis of the ulna suffered 4 years earlier. The lesion caused premature growth arrest in the ulna and a bowing of the distal radius with a carpal slip. It was treated with a corrective osteotomy in the radius together with a lengthening of the ulna, with excellent functional results.
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Clavicle fractures are the most common break injuries in humans second to radius fractures. They often occur alone, mostly after falling directly onto the shoulder and less often onto the stretched out arm. They are also not uncommon in connection with high speed trauma or multiple injuries. ⋯ Because the clavicle is necessary for precise, powerful and variable use of the arm, an exact morphological repositioning is extremely important. Approximately 90% of all clavicle fractures heal with good results after conservative treatment. However, in particular situations there are absolute (obligatory surgery due to vessel damage) or relative operation indications.
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Minimally invasive sacroiliac (SI) screw fixation carries a high risk for implant malposition. Only idealised shape conceptions of the safe bony corridor exist. ⋯ The computed realistic 3D models provide exact references to confining bone structures for safe screw positions. The implementation of a software algorithm for fully automated calculation of such volumes based on fluoroscopic or CT images could enhance the performance of computer-assisted navigation systems.