| Autor: |
Dobbe JG; Department of Biomedical Engineering and Physics, Academic Medical Center, University of Amsterdam, Amsterdam 1100DE, The Netherlands. j.g.dobbe@amc.uva.nl, Strackee SD, Schreurs AW, Jonges R, Carelsen B, Vroemen JC, Grimbergen CA, Streekstra GJ |
| Jazyk: |
angličtina |
| Zdroj: |
IEEE transactions on bio-medical engineering [IEEE Trans Biomed Eng] 2011 Jan; Vol. 58 (1), pp. 182-90. Date of Electronic Publication: 2010 Oct 07. |
| DOI: |
10.1109/TBME.2010.2084576 |
| Abstrakt: |
Malunion after a distal radius fracture is very common and if symptomatic, is treated with a so-called corrective osteotomy. In a traditional distal radius osteotomy, the radius is cut at the fracture site and a wedge is inserted in the osteotomy gap to correct the distal radius pose. The standard procedure uses two orthogonal radiographs to estimate the two inclination angles and the dimensions of the wedge to be inserted into the osteotomy gap. However, optimal correction in 3-Dspace requires restoring three angles and three displacements. This paper introduces a new technique that uses preoperative planning based on 3-D images. Intraoperative 3-D imaging is also used after inserting pins with marker tools in the proximal and distal part of the radius and before the osteotomy. Positioning tools are developed to correct the distal radius pose in six degrees of freedom by navigating the pins. The method is accurate ( d 1.2 mm, ϕ 0.9°, m TRE = 1.7 mm), highly reproducible (SE (d) < 1.0 mm, SE (ϕ) ≤ 1.4°, SE (m) (TRE) = 0.7 mm), and allows intraoperative evaluation of the end result. Small incisions for pin placement and for the osteotomy render the method minimally invasive. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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