ArticlePloS one2016
Determination of Femoral Neck Angle and Torsion Angle Utilizing a Novel Three-Dimensional Modeling and Analytical Technology Based on CT Datasets.
Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 2 of them syntheses that pooled it.
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38 citing papers in PubMed, 2 syntheses or guidelines pooled it, 95 citations in OpenAlex.
- 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
- Factors influencing the outcomes of minimally invasive total hip arthroplasty: a systematic review.Journal of orthopaedic surgery and research · 2022Pooled it
- Evaluation of Changes in Hip Morphology in a Rabbit Model of Patellar Dislocation via Computed Tomography Imaging.Medical science monitor : international medical journal of experimental and clinical research · 2026Article
- Femoral neck anteversion- what's normal in Indians: a morphological study of 742 hips using CT-based MAKO robotic evaluation.BMC musculoskeletal disorders · 2026Article
- Measurement Error in Osteometric, Photographic, and Virtual Methodologies to Quantify the Torsional Profile of the Lower Limb.American journal of biological anthropology · 2025Article
- Automatic measurement of proximal femoral morphological parameters using point cloud semantic segmentation technology.Scientific reports · 2025Article
- Femoral anteversion as a potential risk factor for anterior cruciate ligament injuries in athletes.Journal of experimental orthopaedics · 2025Article
- Prevalence of trochlear dysplasia in an 1162 retrospective cohort study using CT scans.BMC musculoskeletal disorders · 2024Article
- Femoral Neck Anteversion: Which Distal Femur Landmark Matters?Arthroplasty today · 2024Article
- Sex differences in linear bone measurements occur following puberty but do not influence femoral or tibial torsion.Scientific reports · 2023Article
- Mechanical analysis of the femoral neck dynamic intersection system with different nail angles and clinical applications.World journal of clinical cases · 2023Article
- Femoral Anteversion in Total Hip Arthroplasty: Retrospective Comparison of Short- and Straight-Stem Models Using CT Scans.Journal of clinical medicine · 2023Article
- Radiographic Parameters of Adult Hip Dysplasia.Orthopaedic journal of sports medicine · 2023Review
- AP3×ML3 reduction quality classification for femoral trochanteric fractures: validation for reliability focusing on positive medial cortical support.Journal of orthopaedic surgery and research · 2023Article
- Functional Femoral Anteversion: Axial Rotation of the Femur and its Implications for Stem Version Targets in Total Hip Arthroplasty.Arthroplasty today · 2022Article
- Radiographic Evaluation of Pediatric Patients with Patellofemoral Instability.Current reviews in musculoskeletal medicine · 2022Review
- Abnormal Spinopelvic Motion and Spine Deformity are Associated With Native Femoral Retroversion in the Setting of Total Hip Arthroplasty.Arthroplasty today · 2022Article
- Article
- Morphological Parameters of the Hip Joint and Its Relation to Gender, Joint Side and Age-A CT-Based Study.Diagnostics (Basel, Switzerland) · 2022Article
- Comparing two different automatic methods to measure femoral neck-shaft angle based on PointNet++ network.Scientific reports · 2022Article
Corrections and comments
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Authors and funding
8 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionExact knowledge of femoral neck inclination and torsion angles is important in recognizing, understanding and treating pathologic conditions in the hip joint. However, published results vary widely between different studies, which indicates that there are persistent difficulties in carrying out exact measurements.
methodsA three dimensional modeling and analytical technology was used for the analysis of 1070 CT datasets of skeletally mature femurs. Individual femoral neck angles and torsion angles were precisely computed, in order to establish whether gender, age, body mass index and ethnicity influence femoral neck angles and torsion angles.
resultsThe median femoral neck angle was 122.2° (range 100.1-146.2°, IQR 117.9-125.6°). There are significant gender (female 123.0° vs. male 121.5°; p = 0.007) and ethnic (Asian 123.2° vs. Caucasian 121.9°; p = 0.0009) differences. The median femoral torsion angle was 14.2° (-23.6-48.7°, IQR 7.4-20.4°). There are significant gender differences (female 16.4° vs. male 12.1°; p = 0.0001). Femoral retroversion was found in 7.8% of the subjects.
conclusionPrecise femoral neck and torsion angles were obtained in over one thousand cases. Systematic deviations in measurement due to human error were eliminated by using automated high accuracy morphometric analysis. Small but significant gender and ethnic differences were found in femoral neck and torsion angles.
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