Three-dimensional preoperative planning in the weight-bearing state: validation and clinical evaluation
نویسندگان
چکیده
Abstract Objectives 3D preoperative planning of lower limb osteotomies has become increasingly important in light modern surgical technologies. However, models are usually reconstructed from Computed Tomography data acquired a non-weight-bearing posture and thus neglecting the positional variations introduced by weight-bearing. We developed registration pipeline that allows for subsequent assessment anatomical deformities weight-bearing conditions. Methods An intensity-based algorithm was used to register CT scans with long-leg standing radiographs subsequently transform patient-specific into state. measurement methods mechanical axis as well joint line convergence angle were developed. The validated using leg phantom. Furthermore, we evaluated our clinically applying it radiological 59 patients. Results accuracy showed maximum translational rotational error 1.1 mm (mediolateral direction) 1.2° (superior-inferior axis). Clinical evaluation proved feasibility on real patient resulted significant differences measurements when effects considered. Mean 2.1 ± 1.7° 2.0 1.6° angle, respectively. 37.3 40.7% patients had 2° or more between states. Conclusions Our presented approach provides feasible preoperatively fuse 2D order optimize correction.
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ژورنال
عنوان ژورنال: Insights Into Imaging
سال: 2021
ISSN: ['1869-4101']
DOI: https://doi.org/10.1186/s13244-021-00994-8