ArticleInsights into imaging2021
Three-dimensional preoperative planning in the weight-bearing state: validation and clinical evaluation.
Article in Insights into imaging, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.
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Who cites it
16 citing papers in PubMed, 1 synthesis or guideline pooled it.
- High variability exists in 3D leg alignment analysis, but underlying principles that might lead to agreement on a universal framework could be identified: A systematic review.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2025Pooled it
- Review
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- Development and Radiological Evaluation of 3D-Printed Patient-Specific Lung Phantoms: From CT Imaging to 3D Modeling and Material Characterization.Research square · 2026Article
- Consistency of 3D reconstruction measurements of lower limb torsion at different segments with the CT gold standard.Scientific reports · 2025Article
- A deep learning-based multi-view approach to automatic 3D landmarking and deformity assessment of lower limb.Scientific reports · 2025Article
- Anatomy, biomechanics, and clinical advances of proximal tibiofibular joint in pain management.Frontiers in surgery · 2025Review
- Preoperative difference between 2D and 3D planning correlates with difference between planned and achieved surgical correction in patient-specific instrumented total knee arthroplasty.Journal of experimental orthopaedics · 2025Article
- Accuracy of Combined High Tibial Slope Correction Osteotomy Using 3-Dimensional-Planned Patient-Specific Instrumentation.The American journal of sports medicine · 2024Article
- The influence of the weight-bearing state on three-dimensional (3D) planning in lower extremity realignment - analysis of novel vs. state-of-the-art planning approaches.Archives of orthopaedic and trauma surgery · 2024Article
- Feasibility and Usability of Augmented Reality Technology in the Orthopaedic Operating Room.Current reviews in musculoskeletal medicine · 2024Review
- Validation of a Three-Dimensional Weight-Bearing Measurement Protocol for Medial Open-Wedge High Tibial Osteotomy.Journal of clinical medicine · 2024Article
- The coronal alignment differs between two-dimensional weight-bearing and three-dimensional nonweight bearing planning in total knee arthroplasty.Journal of experimental orthopaedics · 2024Article
- Automated Radiographic Measurements of Knee Osteoarthritis.Cartilage · 2023Article
- [Osteotomies around the knee: preoperative planning using CT-based three-dimensional analysis, patient-specific cutting and reduction guides].Operative Orthopadie und Traumatologie · 2023Review
- The winking sign is an indicator for increased femorotibial rotation in patients with recurrent patellar instability.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022Article
Corrections and comments
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Authors and funding
10 authors.
Funding
Abstract
objectives3D preoperative planning of lower limb osteotomies has become increasingly important in light of modern surgical technologies. However, 3D models are usually reconstructed from Computed Tomography data acquired in a non-weight-bearing posture and thus neglecting the positional variations introduced by weight-bearing. We developed a registration and planning pipeline that allows for 3D preoperative planning and subsequent 3D assessment of anatomical deformities in weight-bearing conditions.
methodsAn intensity-based algorithm was used to register CT scans with long-leg standing radiographs and subsequently transform patient-specific 3D models into a weight-bearing state. 3D measurement methods for the mechanical axis as well as the joint line convergence angle were developed. The pipeline was validated using a leg phantom. Furthermore, we evaluated our methods clinically by applying it to the radiological data from 59 patients.
resultsThe registration accuracy was evaluated in 3D and showed a maximum translational and rotational error of 1.1 mm (mediolateral direction) and 1.2° (superior-inferior axis). Clinical evaluation proved feasibility on real patient data and resulted in significant differences for 3D measurements when the effects of weight-bearing were considered. Mean differences were 2.1 ± 1.7° and 2.0 ± 1.6° for the mechanical axis and the joint line convergence angle, respectively. 37.3 and 40.7% of the patients had differences of 2° or more in the mechanical axis or joint line convergence angle between weight-bearing and non-weight-bearing states.
conclusionsOur presented approach provides a clinically feasible approach to preoperatively fuse 2D weight-bearing and 3D non-weight-bearing data in order to optimize the surgical correction.
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