ArticleBMC musculoskeletal disorders2022
Femoral neck shaft angle measurement on plain radiography: is standing or supine radiograph a reliable template for the contralateral femur?
Article in BMC musculoskeletal disorders, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 21 citations in OpenAlex.
- Normative Values of Femoral Inclination Angle and Medial Proximal Femoral Angle: An MRI-Based Study.Medical science monitor : international medical journal of experimental and clinical research · 2026Article
- The Application of a Noninvasive Extracapsular Traction Reduction Technique in Valgus-Impacted Femoral Neck Fracture: Radiological and Clinical Results.Clinics in orthopedic surgery · 2025Article
- New insights on femoral head trabecular bone directionality in elderly humans using a micro-CT-based analysis.Scientific reports · 2025Article
- Article
- Long-term outcome of total hip arthroplasty in patients with multiple hereditary exostosis.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2024Article
- An anatomico-morphometric analysis of proximal femur.Bioinformation · 2024Article
- Biomechanical Comparison of Short-, Mid-, and Long-Length Proximal Femoral Nails for Femoral Intertrochanteric Fracture (AO/OTA 31A3.3) Fixation.Geriatric orthopaedic surgery & rehabilitation · 2024Article
- Transparency films: intraoperative templating to prevent limb deformity.OTA international : the open access journal of orthopaedic trauma · 2023Article
- Femoral neck-shaft angle can predict the anterior capsular thickness in patients with femoracetabular impingement syndrome.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2023Article
- Hip Joint Articulotrochanteric Distance Measurements in Children: Articulotrochanteric Distance in Children Aged 5 to 14 Years Does Not Increase With Age.Journal of pediatric orthopedicsArticle
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9 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
introductionNeck-shaft angle (NSA) is of paramount importance to orthopedic surgeons due to its implications for various pathologies of the hip and femur. The primary aim of the study was to establish if NSA measurement may be affected by imaging position (standing and supine) and provide evidence regarding whether the contralateral NSA can be used as a template. The secondary aim was to determine a reference value and precisely understand the effects of sex on NSA measurement. MATERIALS AND
methodsWe measured bilateral NSA in a retrospective study of 200 standing and 200 supine anteroposterior pelvis radiographs that met the inclusion criteria, while paying special attention to bilateral hip symmetry. The overall inter-rater reliability was 0.688 (CI 0.128-0.851). Matching was performed according to sex (exact matching) and age. Paired t-test, Pearson correlation coefficient, and independent sample t-test were used (p < 0.01).
resultsA total of 400 pairs of femoral necks were reviewed, comprising of 200 males and 200 females. In the upright radiograph, the overall mean NSA was 131.21° ± 4.72°. There was no significant difference between right and left femur NSA among the patients (p = 0.95). On both sides, male NSA was higher than female NSA (p < 0.001). In supine radiograph, the overall mean NSA for the supine position was 133.06° ± 5.71°. There was a significant difference between NSA of the right and left femur among the patients in the supine position (p < 0.001). On supine radiographs there was no statistically significant difference between male and female NSA (p = 0.85).
conclusionOur findings indicated no significant variability in upright radiographs between the right and left NSA. In contrast, significant asymmetry between the right and left NSA was found in the supine radiographs. However, this study does not provide definitive clinical evidence, and further clinical-oriented research is required. LEVEL OF EVIDENCE: Level III; retrospective comparative study.
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