ArticleKnee surgery, sports traumatology, arthroscopy : official journal of the ESSKA2017
Measurement of lower limb alignment: there are within-person differences between weight-bearing and non-weight-bearing measurement modalities.
Article in Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed, 44 citations in OpenAlex.
- Two-year follow-up of varus progression in young professional football players.BMC sports science, medicine & rehabilitation · 2026Article
- Article
- Pre-operative planning with X-PSI™ compared to MRI-based patient-specific instrumentation in total knee arthroplasty.Journal of clinical orthopaedics and trauma · 2025Article
- Full-length weight-bearing radiographs and computed tomography show discrepancies in coronal alignment for robotic arm-assisted total knee arthroplasty.Scientific reports · 2025Article
- CT-Based Software-Generated Measurements Permit More Objective Assessments of Arithmetic Hip-Knee-Ankle Axis and Joint Line Obliquity.Life (Basel, Switzerland) · 2025Article
- VELYS robotic-assisted total knee arthroplasty: Enhanced accuracy and comparable early outcomes versus manual instrumentation during adoption.Journal of experimental orthopaedics · 2025Article
- Radiological Approach to Assessment of Lower-Limb Alignment-Coronal and Transverse Plane Analysis.Journal of clinical medicine · 2024Review
- Long leg radiographs underestimate the degree of constitutional varus limb alignment and joint line obliquity in comparison with computed tomography: a radiographic study.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Article
- 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
- Factor affecting the discrepancy in the coronal alignment of the lower limb between the standing and supine radiographs.BMC musculoskeletal disorders · 2022Article
- Fully automated measurement on coronal alignment of lower limbs using deep convolutional neural networks on radiographic images.BMC musculoskeletal disorders · 2022Article
- Femorotibial alignment measured during robotic assisted knee surgery is reliable: radiologic and gait analysis.Archives of orthopaedic and trauma surgery · 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
- Planning Results for High Tibial Osteotomies in Degenerative Varus Osteoarthritis Using Standing and Supine Whole Leg Radiographs.Orthopaedic surgery · 2021Article
- The effect of knee joint rotation in the sagittal and axial plane on the measurement accuracy of coronal alignment of the lower limb.BMC musculoskeletal disorders · 2020Article
- Lower limb alignment becomes more varus and hyperextended from supine to bipedal stance in asymptomatic, osteoarthritic and prosthetic neutral or varus knees.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2019Article
- Weight-bearing radiography depends on limb loading.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2019Article
- Different References for Valgus Cut Angle in Total Knee Arthroplasty.The archives of bone and joint surgery · 2018Article
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposePrevious studies have compared weight-bearing mechanical leg axis (MLA) measurements to non-weight-bearing measurement modalities. Most of these studies compared mean or median values and did not analyse within-person differences between measurements. This study evaluates the within-person agreement of MLA measurements between weight-bearing full-length radiographs (FLR) and non-weight-bearing measurement modalities (computer-assisted surgery (CAS) navigation or MRI). MATERIALS AND
methodsTwo independent observers measured the MLA on pre- and postoperative weight-bearing FLR in 168 patients. These measurements were compared to non-weight-bearing measurements obtained by CAS navigation or MRI. Absolute differences in individual subjects were calculated to determine the agreement between measurement modalities. Linear regression was used to evaluate the possibility that other independent variables impact the differences in measurements.
resultsA difference was found in preoperative measurements between FLR and CAS navigation (mean of 2.5° with limit of agreement (1.96 SD) of 6.4°), as well as between FLR and MRI measurements (mean of 2.4° with limit of agreement (1.96 SD) of 6.9°). Postoperatively, the mean difference between MLA measured on FLR compared to CAS navigation was 1.5° (limit of agreement (1.96 SD) of 4.6°). Linear regression analysis showed that weight-bearing MLA measurements vary significantly from non-weight-bearing MLA measurements. Differences were more severe in patients with mediolateral instability (p = 0.010), age (p = 0.049) and ≥3° varus or valgus alignment (p = 0.008).
conclusionThe clinical importance of this study lies in the finding that there are within-person differences between weight-bearing and non-weight-bearing measurement modalities. This has implications for preoperative planning, performing total knee arthroplasty (TKA), and clinical follow-up after TKA surgery using CAS navigation or patient-specific instrumentation. LEVEL OF EVIDENCE: III.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.