Gottfried Bogusch

University of Rostock, Rostock, Mecklenburg-Vorpommern, Germany

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Publications (9)13.25 Total impact

  • [Show abstract] [Hide abstract]
    ABSTRACT: The Division of Evidence Based Medicine (dEBM), Clinic for Dermatology, Venerology and Allergology, Charité--Universitätsmedizin Berlin, offers on a regular basis workshops focusing on different areas of aesthetic medicine. Once a year a joint course is provided in cooperation with the Institute of Anatomy, offering the participants the possibility to improve their injection techniques as well as their knowledge on the facial anatomy. This course is focused on treatment with hyaluronic acids of different particle size. Besides the classical indications, it considers new indications such as correcting the shape of the nose or lacrimal groove. Thirteen physicians participated in the course, which was evaluated as very helpful as it improved not only the injection technique but also the knowledge of anatomy.
    Journal der Deutschen Dermatologischen Gesellschaft 04/2007; 5(3):226-9. · 1.40 Impact Factor
  • Journal der Deutschen Dermatologischen Gesellschaft 01/2007; 5(3):226-229. · 1.40 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Fractures of the hook of the hamate are a rare event. The fracture cannot always be detected clinically and standard radiographs do not always provide an overlap-free image of the hook of the hamate, so that fractures can easily be overlooked. The objective of the present study was to examine if the sensitivity of detecting hamulus ossis hamati fractures can further be improved by a modified conventional radiographic projection. After dissection of the hook of the hamate on 10 cadaver hands, a fracture was produced close to the base using a surgical chisel. Conventional radiographs were then performed in four different projections (dorso-palmar, lateral, carpal-tunnel and oblique view). The oblique view was obtained in a 45 degrees supination position, slight extension and radial duction, with the tube tilted from distal to proximal by 30 degrees. An axial spiral CT was used as a reference for detection of the fracture. The highest sensitivity of the conventional radiographs, with 8/10 identified fractures (80%), was achieved by the oblique view. The carpal-tunnel view with 4/10 (40%) and the dorso-palmar projection with 3/10 (30%) were much lower. All fractures were missed in the lateral projection. If all of the conventional radiographic projections are taken into account, the sensitivity is increased to 90%. All of the fractures were reliably detected in the axial CT-image. If a hamulus ossis hamati fracture is suspected clinically, in addition to the dorso-palmar and carpal-tunnel view, the special oblique view described here should be performed as a third projection plane, while the lateral view can be dispensed with. However, even if all projections are taken into account, a negative finding in the conventional radiographic imaging does not exclude a fracture with absolute certainty. In such cases, a CT or MRI should be performed to exclude a fracture.
    Rontgenpraxis 02/2006; 56(2):59-65.
  • [Show abstract] [Hide abstract]
    ABSTRACT: Fractures of the hook of the hamate are a rare event. The fracture cannot always be detected clinically and standard radiographs do not always provide an overlap-free image of the hook of the hamate, so that fractures can easily be overlooked. The objective of the present study was to examine if the sensitivity of detecting hamulus ossis hamati fractures can further be improved by a modified conventional radiographic projection.After dissection of the hook of the hamate on 10 cadaver hands, a fracture was produced close to the base using a surgical chisel. Conventional radiographs were then performed in four different projections (dorso-palmar, lateral, carpal-tunnel and oblique view). The oblique view was obtained in a 45° supination position, slight extension and radial duction, with the tube tilted from distal to proximal by 30°. An axial spiral CT was used as a reference for detection of the fracture.The highest sensitivity of the conventional radiographs, with 8/10 identified fractures (80%), was achieved by the oblique view. The carpal-tunnel view with 4/10 (40%) and the dorso-palmar projection with 3/10 (30%) were much lower. All fractures were missed in the lateral projection. If all of the conventional radiographic projections are taken into account, the sensitivity is increased to 90%. All of the fractures were reliably detected in the axial CT-image.If a hamulus ossis hamati fracture is suspected clinically, in addition to the dorso-palmar and carpal-tunnel view, the special oblique view described here should be performed as a third projection plane, while the lateral view can be dispensed with. However, even if all projections are taken into account, a negative finding in the conventional radiographic imaging does not exclude a fracture with absolute certainty. In such cases, a CT or MRI should be performed to exclude a fracture.
    Rontgenpraxis. 01/2006;
  • Stefan Exner, Gottfried Bogusch, Roman Sokiranski
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    ABSTRACT: Cribra orbitalia are sieve-like lesions of the orbital roof. While common in historic skulls, they have long been absent in those examined in the last decades. Only recently we found low-grade cribra orbitalia in some contemporary cases. Though of unknown origin, this lesion is often attributed to anemia and deficiency diseases. It is theoretically possible to visualize cribra orbitalia in living subjects by computed tomography and thus study their etiology. The aim of our study was to investigate the possibilities of computed tomography for visualizing cribra orbitalia. We used multislice computed tomography (MSCT) in the spiral and sequential mode to image medium-grade cribra orbitalia of moderate severity in a human skull. Virtual endoscopic and 3-D images were produced by post-processing. The best results were obtained by the sequential mode and 3-D reconstruction. Given a thin slice thickness and a wide slice angle between slice plane and the orbital roof, the threshold level seems to be the most important factor influencing realistic reproduction and should be finely adjusted according to bone density. Clinical research may now begin by examining relevant patients undergoing CT.
    Annals of Anatomy - Anatomischer Anzeiger 05/2004; 186(2):169-72. · 1.96 Impact Factor
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    ABSTRACT: To examine the ability to image fractures of the body and hook of the hamate bone in conventional X-rays and high-resolution computed tomography (HR-CT). In an in vitro experiment using 18 cadaver hands, the hamate bone was fractured at different places. Before and after fracture, conventional X-rays were taken in different planes (anteroposterior, lateral, oblique, and carpal tunnel), and HR-CT was performed with 2-mm layer thickness in the axial, sagittal, and coronal plane. Taking into account all the conventional X-ray projections applied, the in vivo experiment revealed a sensitivity of 72.2%, a specificity of 88.8%, and an accuracy of 80.5%. For the HR-CT, the sensitivity was 100%, the specificity was 94.4%, and the accuracy was 97.2%. Fractures of the body and hook of the hamate cannot always be detected with certainty in the conventional X-ray image, even if different projectional planes are used. The HR-CT is the imaging procedure of choice for further clarification, and an axial or sagittal plane should be selected.
    Investigative Radiology 02/1999; 34(1):46-50. · 5.46 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Examination of the ability to image fractures of the body and hook of the hamate bone in conventional X-rays and HR-CT. In an in vitro experiment on 18 cadaver hands, the hamate bone was fractured at different localisations. Before and after fracture, conventional x-rays were taken in different projectional planes: a.-p., lateral, oblique and carpal tunnel view, as well as an HR-CT with 2 mm layer thickness in the axial, sagittal and coronal plane. In addition, 15 clinically verified hamate bone fractures (two body and 13 hook of hamate fractures) were reviewed retrospectively to assess the value of the imaging procedures that led to diagnosis. Taking into account all conventional x-ray projections applied, the in vitro experiment yielded a sensitivity of 72.2%, a specificity of 88.8% and an accuracy of 80.5%. For CT, the sensitivity was 100%, the specificity 94.4% and the accuracy 97.2%. In retrospective clinical evaluation, 60% of the existing fractures were identified in the conventional x-ray images. The remaining fractures were detected by additional procedures like scintigraphy, conventional tomography and CT. For the diagnosis of fractures of the body and hook of the hamate HR-CT is the imaging procedure of choice, in which case an axial or sagittal plane should be chosen.
    RöFo - Fortschritte auf dem Gebiet der R 08/1998; 169(1):53-7. · 2.76 Impact Factor
  • Rofo-fortschritte Auf Dem Gebiet Der Rontgenstrahlen Und Der Bildgebenden Verfahren - ROFO-FORTSCHR RONTGENSTRAHL. 01/1998; 169(07):53-57.
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    ABSTRACT: Purpose: Isolated fractures of the hamate hook can be treated by conservative or surgical means. Because nonoperative treatment is associated with high nonunion rates, surgical treatment with open reduction and internal fixation through a palmar approach is often preferred. The aim of this study was to refine surgical treatment of hamate hook fractures using a cannulated mini compression screw through a dorsal percutaneous approach. Methods: Artificial fractures of the hamate hook were created in five male cadaver hands under fluoroscopy. Using an ulnar approach, the hamate hook was fractured at the base (n = 3) and middle third (n = 2) of the hook using an osteotome. Each fracture was visualized by X-ray and computed tomography. Under fluoroscopy, the fracture was stabilized with a 1.1 mm K wire through a dorsal percutaneous approach which guided the introduction of a 3 mm diameter cannulated mini compression screw. The screw position was then controlled by X-ray and computed tomography. Results: Percutaneous fixation of the fractured hook through the dorsal approach was achieved in all cases. Regardless of the fracture location, all fragments were adapted into anatomically correct positions. No displacement or disruption of the cortex of the hook was observed with central screw positioning. Conclusion: Minimal invasive repair of isolated hamate hook fractures through a dorsal percutaneous approach is feasible. The special properties of the cannulated mini compression screw allow optimal screw positioning and stable fixation without risk of diplacement or disruption of the hook fragment.
    European Journal of Trauma and Emergency Surgery 35(4):397-402. · 0.26 Impact Factor

Publication Stats

27 Citations
13.25 Total Impact Points

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Institutions

  • 2006
    • University of Rostock
      Rostock, Mecklenburg-Vorpommern, Germany
  • 1998–1999
    • Freie Universität Berlin
      • Institute of Social and Cultural Anthropology
      Berlin, Land Berlin, Germany