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Original

Computer-assisted optimization of correction osteotomies on lower extremities

, , , , &
Pages 345-350 | Received 12 May 2005, Accepted 03 Jun 2005, Published online: 06 Jan 2010

Figures & data

Figure 1. Planning interface with 3D model in front of X-ray images.

Figure 1. Planning interface with 3D model in front of X-ray images.

Figure 2. Optimization interface with preoperative (left column), target (center column) and calculated (diagram at right) parameters for leg-length variation, angulation, antetorsion and translation.

Figure 2. Optimization interface with preoperative (left column), target (center column) and calculated (diagram at right) parameters for leg-length variation, angulation, antetorsion and translation.

Figure 3. Worksteps of the second study: (a) preoperative deformed bone with fixed distal and proximal reference bases; (b) navigated drilling with k-wires; (c) marked osteotomy plane; (d) after manual osteotomy; (e) navigated osteosynthesis; and (f) measurement using a standard measurement board for anatomical investigations.

Figure 3. Worksteps of the second study: (a) preoperative deformed bone with fixed distal and proximal reference bases; (b) navigated drilling with k-wires; (c) marked osteotomy plane; (d) after manual osteotomy; (e) navigated osteosynthesis; and (f) measurement using a standard measurement board for anatomical investigations.

Table I.  Results of first attempt at validating the selected optimization procedure.

Figure 4. Evaluation of the kinematic method in cadaver studies using a C-arm and tracking system.

Figure 4. Evaluation of the kinematic method in cadaver studies using a C-arm and tracking system.

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