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Ohne ZusammenfassungMit 4 Abbildungen in 10 EinzeldarstellungenVortragender:J. Hernández-Richter.  相似文献   

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Zusammentassung Durch zwei der vonKirschner für die Extensionsbehandlung der Knochenbrücheangegebenen Extensionsbügel mit den dazu geh?rigen Bohrdr?hten, die man subkutan quer zur L?ngsachse des Oberschenkels durchsticht und spannt, kann man die Haut in der L?ngsrichtung so stark anspannen, da? sich mit demSchepelmannschen Messer gro?e Epidermislappen entnehmen lassen.  相似文献   

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Fleischhacker  E.  Ehrl  D.  Fürmetz  J.  Meller  R.  Böcker  W.  Zeckey  C. 《Der Unfallchirurg》2021,124(1):74-79
Die Unfallchirurgie - Die Rekonstruktion großer osteochondraler Defekte stellt nach wie vor eine Herausforderung in der muskuloskeletalen Chirurgie dar. Frisch gefrorene Allografts sind eine...  相似文献   

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In most instances, ruptures of large tendons are caused by degenerative alterations. Traumatic ruptures are comparatively rare. Criteria for determining the cause of such ruptures are discussed. Definitions of causality apply to German statutory accident insurance (worker’s compensation) on the one hand and to private accident insurance on the other. In the legal setting of German statutory accident insurance (worker’s compensation), ruptures of tendons which occur during physiologic stress on the tendon such as undisturbed planned arbitrary movements are not considered traumatic. Traumatic ruptures of tendons can be caused by sharp or blunt direct force or by indirect force which leads to unforeseen sudden passive movements of joints stabilized by muscle.  相似文献   

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Zusammenfassung Patienten mit angeborenen zyanotischen Herzfehlern stellen durch die individuellen hämodynamischen Besonderheiten eine anästhesiologische Herausforderung dar. Der Aufrechterhaltung der Balance zwischen systemischem und pulmonalvaskulärem Widerstand kommt entscheidende Bedeutung zu. Im Folgenden wird über das erfolgreiche perioperative Management bei einer 24-jährigen Patientin mit unkorrigierter Transposition der großen Arterien (D-TGA) und großem Ventrikelseptumdefekt (funktionell univentrikuläres Herz) während einer Sectio caesarea berichtet. Die Patientin wurde in der 32. Schwangerschaftswoche (SSW) mit Zeichen einer zunehmenden kardialen Insuffizienz in unser Perinatalzentrum eingewiesen. In einem interdisziplinären Konsil mit Geburtshelfern, Neonatologen, Kardiochirurgen und Anästhesisten wurde das peripartale Prozedere festgelegt. Die Sectio caesarea erfolgte in der 35. SSW in Periduralanästhesie. Die Patientin wurde am 10. postoperativen Tag kardiovaskulär stabil nach Hause entlassen. Aufgrund der Hyperkoagulabilität, insbesondere der Gefährdung durch eine paradoxe Embolie, wurde unmittelbar postoperativ eine Thromboseprophylaxe mit niedermolekularem Heparin begonnen und über 6 Wochen fortgeführt. Das gesunde Kind, bei dem eine Wachstumsretardierung vorlag, entwickelte sich auf der neonatologischen Intensivstation zufrieden stellend.  相似文献   

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Objective

Treatment of large dia- and metaphyseal bone defects (>?3 cm) with two surgical interventions with an interval of 4–8 weeks.

Indications

Dia- and metaphyseal bone defects predominantly of the lower extremity.

Contraindications

Intraarticular bone defects, persisting bone infection or osteomyelitis, insufficient soft tissue coverage in the region of the bone defect, osteoporosis.

Surgical technique

First surgical intervention: thorough bone debridement and soft tissue coverage, implantation of a cement spacer into the bone defect for the induction of a synovial foreign-body membrane, internal or external fixation. Second surgical intervention: removal of the cement spacer and filling of the bone defect with autologous cancellous bone graft, optionally internal fixation after initial external fixation.

Postoperative management

Partial to full weight-bearing after the first surgical intervention depending on pain. Partial weight-bearing (max. 15 kg) after the second surgical intervention, until radiological signs of a remodeling of the regenerate bone occur. Usually no implant removal.

Results

A total of 6 patients (4 men, 2 women) aged 15–66 years with average bone defects of 7 cm (range 4–10 cm) were treated using the Masquelet technique. There were 2 aseptic femoral nonunions and 4 tibial nonunions (2 septic and 2 aseptic nonunions). One case was a periprosthetic tibial bone defect. Bone stabilization after debridement was performed using ring fixators on the tibia and an intramedullary nail and a locking plate on the femur, respectively. The second surgical intervention was performed after 6–9 weeks. In 3 of the 4 tibial cases, internal fixation was performed during this intervention. The iliac crest and the RIA (reamer–irrigator–aspirator) technique were used for cancellous bone grafting. Amputation after breakage of the plate was necessary in the patient with the periprosthetic bone defect. Nonunion at the docking site required cancellous bone grafting in 1 patient. All 5 patients were able to perform full weight-bearing without pain after 6 months. The Ilizarov fixator was removed 5 months after the second surgical intervention in a 15-year-old patient. None of the other implants were removed.
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Between 1988 and 1999 we used the Wagner SL revision prosthesis in 99 cases. The indications were aseptic and septic loosening, periprosthetic fractures, and Girdlestone situations. These were mostly Paprosky types 2 and 3 meta- and metadiaphyseal femoral bone defects. The intervention was the first revision in 49 cases and the second or up to the sixth revision in 50 cases. A transgluteal or transfemoral approach was usually chosen. We gradually reduced the anchorage area to a length of 8-12 cm. If after the first few postoperative months an osseous integration without radiolucency is achieved, a long-lasting integration can be expected. Due to considerable subsidence during the 1st year, six stems had to be replaced. Seven additional revisions were done because of hematoma and three because of seroma. According to the survival analysis, 92% of the stems remained in place after 10 years. No revision was executed between the 5th and 10th year. At the 1-year control, 96% of the patients were pain free and 90% were satisfied. Nevertheless, 80% limped and 33% used at least one crutch. Mainly because of deterioration of general health, the walking distance was considerably reduced between the 1st and the 5th postoperative year. There is little difference in the results after revision between a relatively small and an extended defect. At present, we limit the use of the SL revision stem mainly to extended defects. Careful planning of the operation is mandatory.  相似文献   

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