Der Chirurg; Zeitschrift für alle Gebiete der operativen Medizen
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Interfragmentary movement and size of the fracture gap influence fracture healing. Limited movements promote callus formation and may result in increased mechanical stability. Although larger movements still promote callus formation, the bony consolidation of the fracture is hampered. ⋯ Therefore, having in mind a minimally invasive surgical approach, one should strive for good reduction of the fracture ends and flexible yet stable osteosynthesis. Dynamization of the fracture by enabling axial movement will close the fracture gap, stimulate tissue differentiation and possibly accelerate the healing process. External mechanical stimulation, however, has not been shown to effectively enhance the healing process under flexible fixation or in load-bearing patients.
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Coverage of the exposed Achilles tendon requires thin, supple tissue to provide adequate range of motion and a satisfying aesthetic result for the distal lower extremity. Various local flaps and free flaps have been described for reconstruction of small and large defects. Small defects can be closed with local tissue, whereas free flap coverage may be necessary for coverage of large defects. ⋯ Soft tissue coverage over the exposed Achilles tendon requires an optimal solution for each patient to achieve an aesthetically pleasing result and acceptable function. Microvascular free flaps can be used to reconstruct medium and large defects and to provide gliding tissue for the Achilles tendon. The complication rate of microvascular flaps is comparable with that of local flaps.
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Case Reports
[Trans-scaphoid perilunar dislocation of the wrist (de Quervain) as a rare complication of electric injury].
We describe the case of a 67-year-old man with an electricity inflicted injury in the left hand and a transscaphoidal perilunear dislocation of the opposite right hand. On admission, the injury was missed on the standard ap-radiogram of the right hand, so the operative reconstruction was delayed. Later on, the lunate showed aseptic necrosis and wrist collapse as consequence.
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[Does liberation of interleukin-12 correlate with the clinical course of polytraumatized patients?].
Interleukin-12-p70 (IL-12-p70) is a potent immunoregulatory cytokine composed of a heavy chain (p40) and a light chain (p35). Contradicting results have been reported with regard to leukocyte release and systemic concentration of IL-12 after polytrauma. ⋯ After major injuries there is no overall suppression of IL-12 formation. Patients with normal or elevated IL-12 levels belong mainly to the survivors, whereas patients with decreased IL-12 levels are at high risk of succumbing to multi-organ failure.
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Penetrating neck injuries are potentially life-threatening injuries. Management is controversial despite decades of discussion in the literature. An algorithm for diagnosis and therapy is needed because of the potential risk of mortality. ⋯ Injuries were caused in seven cases by gunshots, in eight cases by broken glass, in one case by an iron rod, in one case by a spear, in one case by a branch and in 13 cases the penetrating injuries were stab wounds caused by knives. Complications like pseudoaneurysms and fistulas were not seen. No patient came to death.