Leonhard Bastian

Publications (2)2.37 Total impact

• Article: Coccydynia due to a benign notochordal cell tumor.

  Carl Haasper, Florian Länger, Herbert Rosenthal, Karsten Knobloch, Eckart Mössinger, Christian Krettek, Leonhard Bastian
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  ABSTRACT: Case report. To present a rare case of a notochordal cell tumor. We report on a 27-year-old female patient with pain at the lower back and muscle cramps in the area of the right hip. Image studies demonstrated a cystic lesion of the coccyx. As clinical symptoms became chronic and were resistant to conservative treatment, a resection of the coccyx was performed. Histology revealed an intraosseous benign notochordal cell tumor. This tumor represents a recently described notochordal cell proliferation biologically distinct from chordomas. Overdiagnosis of these notochordal cell proliferations as chordomas may occur if clinicians and pathologists are unfamiliar with the spectrum of notochordal proliferations.
  Spine 07/2007; 32(14):E394-6. · 2.08 Impact Factor
• Article: Navigated Iso-C3D-based percutaneous osteoid osteoma resection: a preliminary clinical report.

  Daniel Kendoff, Tobias Hüfner, Musa Citak, Jens Geerling, Eckhard Mössinger, Leonhard Bastian, Christian Krettek
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  ABSTRACT: Minimally invasive osteoid osteoma resection under computer tomography (CT) guidance has yielded good results and has become a viable alternative to open surgical procedures. Limited visualization of the actual drill position under CT guidance can frequently result in inadequate and malpositioned drilling, especially at lesions located in less accessible anatomic regions. With the conventional CT-guided drilling technique, sterility and general operative management poorly correlate with standard operating room conditions, and are at risk of intra- and postoperative complications. The new Iso-C(3D) imaging device provides intraoperative multiplanar reconstructions. Adequate image quality and implementation in navigation systems were described for numerous indications. On the basis of multiplanar reconstructions, minimally invasive navigated techniques under three-dimensional surgical tool control become possible, which is not the case under fluoroscopic or CT-based navigation. We report on our first three cases of navigated Iso-C(3D) osteoid osteoma resection. A minimally invasive resection of the nidus was possible under permanent multiplanar image control. No complications were encountered and all patients reported successful outcomes. Minimally invasive-based navigation offered an effective and reproducible surgical approach. Dependence on CT imaging for proper positioning and complications associated with use away from the operating room environment can be avoided.
  Computer Aided Surgery 06/2005; 10(3):157-63. · 0.30 Impact Factor