ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2019
Weight-bearing radiography depends on limb loading.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.
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Who cites it
23 citing papers in PubMed, 36 citations in OpenAlex.
- Development of Mucoid Degeneration of the Anterior Cruciate Ligament Is Associated With Intermediate-Term Outcomes After High Tibial Osteotomy: A Propensity Score-Matched Analysis.Orthopaedic journal of sports medicine · 2025Article
- High agreement of three-dimensional lower limb alignment analysis between a novel cone-beam CT and multislice CT.Journal of experimental orthopaedics · 2025Article
- Biplanar radiographic analysis of knee alignment: a stepwise approach for phenotype classification and knee arthroplasty planning.EFORT open reviews · 2025Review
- Artificial intelligence-guided assessment of the hip-knee-ankle angle shows excellent correlation with experienced human raters.Journal of experimental orthopaedics · 2025Article
- Is limb overcorrection following total knee arthroplasty compromising functional outcome?Journal of orthopaedics · 2025Article
- Full-length weight-bearing radiographs and computed tomography show discrepancies in coronal alignment for robotic arm-assisted total knee arthroplasty.Scientific reports · 2025Article
- Intraoperative robotic measurements of coronal alignment in total knee arthroplasty correlate with pre- and post-operative long-leg radiographs.Journal of experimental orthopaedics · 2025Article
- Radiological Approach to Assessment of Lower-Limb Alignment-Coronal and Transverse Plane Analysis.Journal of clinical medicine · 2024Review
- Automatic measurement of lower limb alignment in portable devices based on deep learning for knee osteoarthritis.Journal of orthopaedic surgery and research · 2024Article
- Postoperative full leg radiographs exhibit less residual coronal varus deformity compared to intraoperative measurements in robotic arm-assisted total knee arthroplasty with the MAKO™ system.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Article
- Significant changes in lower limb alignment due to flexion and rotation-a systematic 3D simulation of radiographic measurements.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Article
- Factor affecting the discrepancy in the coronal alignment of the lower limb between the standing and supine radiographs.BMC musculoskeletal disorders · 2022Article
- Implication of Changes in the Imaging Measurements after Mechanically Aligned Total Knee Arthroplasty.Orthopaedic surgery · 2022Article
- Automated Artificial Intelligence-Based Assessment of Lower Limb Alignment Validated on Weight-Bearing Pre- and Postoperative Full-Leg Radiographs.Diagnostics (Basel, Switzerland) · 2022Article
- Evaluation of Hindlimb Deformity and Posture in Dogs with Grade 2 Medial Patellar Luxation during Awake Computed Tomography Imaging while Standing.Veterinary and comparative orthopaedics and traumatology : V.C.O.T · 2022Article
- The contralateral limb is no reliable reference to restore coronal alignment in TKA.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2022Article
- Evaluation of the reliability of lower extremity alignment measurements using EOS imaging system while standing in an even weight-bearing posture.Scientific reports · 2021Article
- Advances in Daily Musculoskeletal Imaging: Automated Analysis of Classic Radiographs.Radiology. Artificial intelligence · 2021Article
- Automated Analysis of Alignment in Long-Leg Radiographs by Using a Fully Automated Support System Based on Artificial Intelligence.Radiology. Artificial intelligence · 2021Article
- 3D-surface scan based validated new measurement technique of femoral joint line reconstruction in total knee arthroplasty.Journal of experimental orthopaedics · 2021Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe mechanical axis of the lower limb has shown to vary between different weight-bearing conditions and change after total knee arthroplasty (TKA). The purpose of this study was to investigate the correlation between mechanical axis alignment in standing long-leg radiographs and limb loading after TKA.
methodsMechanical axis of the lower limb and limb loading have been prospectively evaluated in 115 patients 10 days and 3 months after TKA. By the moment of standing long-leg radiography for analysis of the mechanical leg axis, two digital scales separately captured the load of each limb.
resultsMechanical axis changed from an initial - 1° ± 2° valgus alignment to a varus axis of + 1° ± 2° (p < 0.01). This change in alignment was associated with an increase of limb loading from 89.9 ± 10.7 to 93.0 ± 7.0% (p < 0.01). The mechanical axis strongly correlated with relative limb loading at the first and second measurements (r = 0.804, p < 0.001, respectively, r = 0.562, p < 0.001). A significant change in the rate of outliers was registered within the observation period. These alterations and distinctions were much more pronounced in patients with postoperative incomplete extension (n = 15).
conclusionsThe postoperative mechanical axis correlates with limb loading. A clinical relevant change in frontal alignment of the lower limb is associated with increased limb loading after TKA. The actual mechanical axis can only be assessed at physiological limb loading in long-leg radiographs with complete extension at full weight bearing. LEVEL OF EVIDENCE: Diagnostic study, Level II.
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