| Stereotactic CT-guided percutaneous stabilization of posterior pelvic ring fractures: a preclinical cadaver study. | |
| | |
MedLine Citation:
|
PMID: 18589325 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
PURPOSE: To determine the accuracy of frameless stereotactic computed tomographic (CT)-guided wire placement for percutaneous fixation of posterior pelvic ring fractures in human cadavers. MATERIALS AND METHODS: Four intact human cadavers were fixated in a double-vacuum immobilization system. A 2.5-mm helical CT dataset was obtained and transferred to the three-dimensional (3D) navigation system. In every specimen, two paths on each side (total number, 16) were defined on multiplanar reconstructions of the 3D CT datasets, simulating fixation of the iliosacral joint. An aiming device was adjusted according to the plan, and a 2.5-mm pin was advanced through the aiming device to the precalculated target point. To determine the accuracy of pin placement, a control CT scan was co-registered to the planning CT scan (with the planned trajectories). The distance between the planned and achieved positions of the pins (3D accuracy) was calculated in millimeters. RESULTS: The mean 3D accuracy was 1.84 mm +/- 0.9 (standard deviation) at the bone entrance point and 2.5 mm +/- 1.2 at the target, as determined with image fusion between the planning CT scan and the control CT scan with the pins in place. CONCLUSIONS: The described technique enables accurate placement of pins in the pelvis and may be useful for percutaneous orthopedic procedures. |
| | |
Authors:
|
Reto J Bale; Peter Kovacs; Bahman Dolati; Christoph Hinterleithner; Ralf E Rosenberger |
Related Documents
:
|
18979815 - Eeg to mri registration based on global and local similarities of mri intensity distrib... 11584235 - Performance evaluation of an automated system for registration and postprocessing of ct... 9146495 - 3d localization of surface 10-20 eeg electrodes on high resolution anatomical mr images. 19163935 - Effective 2d-3d medical image registration using support vector machine. 19944585 - On the use of hyperpolarized helium mri for conformal avoidance lung radiotherapy. 16892185 - Proton spectral editing for discrimination of lactate and threonine 1.31 ppm resonances... |
Publication Detail:
|
Type: Evaluation Studies; Journal Article Date: 2008-06-02 |
Journal Detail:
|
Title: Journal of vascular and interventional radiology : JVIR Volume: 19 ISSN: 1051-0443 ISO Abbreviation: J Vasc Interv Radiol Publication Date: 2008 Jul |
Date Detail:
|
Created Date: 2008-06-30 Completed Date: 2008-10-30 Revised Date: - |
Medline Journal Info:
|
Nlm Unique ID: 9203369 Medline TA: J Vasc Interv Radiol Country: United States |
Other Details:
|
Languages: eng Pagination: 1093-8 Citation Subset: IM |
Affiliation:
|
Interdisciplinary Stereotactic Intervention and Planning Laboratory (SIP-Lab) at the Department of Radiology, Medical University Innsbruck, Anichstrasse 35, Innsbruck, Austria. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Aged Aged, 80 and over Bone Nails Bone Screws Cadaver Computer Simulation Female Fracture Fixation, Internal / instrumentation, methods* Fractures, Bone / radiography*, surgery* Humans Imaging, Three-Dimensional Male Pelvic Bones / radiography*, surgery* Radiographic Image Interpretation, Computer-Assisted Radiography, Interventional* Reproducibility of Results Sacroiliac Joint / radiography, surgery Surgery, Computer-Assisted* Surgical Procedures, Minimally Invasive Tomography, Spiral Computed* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Microwave liver ablation: influence of hepatic vein size on heat-sink effect in a porcine model.
Next Document: The use of inferior vena cava filters in young children.