ArticleJournal of orthopaedic trauma2021
Femoral Neck Shaft Angle and Management of Proximal Femur Fractures: Is the Contralateral Femur a Reliable Template?
Article in Journal of orthopaedic trauma, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
12 citing papers in PubMed, 14 citations in OpenAlex.
- Single lag screw cephalomedullary nail angle-anatomy mismatch is associated with immediate postoperative malreduction after intertrochanteric hip fracture fixation.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2026Article
- Statistical shape modeling of the proximal femur bone for hip implant design optimization.Scientific reports · 2026Article
- Influence of cephalomedullary nail length and caput-collum-diaphyseal angle on tip-apex distance and early mechanical cut-out in trochanteric femur fractures.BMC musculoskeletal disorders · 2026Article
- Patient-specific anatomical alignment relative to the contralateral collodiaphyseal angle as an independent predictor of screw cut-out after proximal femoral nailing.Journal of orthopaedic surgery and research · 2026Article
- Evaluating polymethylmethacrylate (PMMA) augmentation in cephalomedullary nail fixation of hip fractures: a step towards evidence-based patient selection criteria.European journal of trauma and emergency surgery : official publication of the European Trauma Society · 2026Article
- Article
- Artificial Intelligence Approach in Hip Prosthesis Identification and Addressing Radiographic Outcome Measures.Arthroplasty today · 2025Article
- Article
- Morphological variations of the femoral head-neck junction in historical skeletal material.PeerJ · 2025Article
- Contralateral Neck-shaft Angle Lower Than 130° Is Associated With Clinical Failure in Nongeriatric Individuals: Analysis of the National Femoral Neck Fracture Database of 1066 Patients.Clinical orthopaedics and related research · 2024Article
- Transparency films: intraoperative templating to prevent limb deformity.OTA international : the open access journal of orthopaedic trauma · 2023Article
- Femoral neck shaft angle measurement on plain radiography: is standing or supine radiograph a reliable template for the contralateral femur?BMC musculoskeletal disorders · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
objectivesTo (1) assess interrater reliability of a novel technique for measurement of neck shaft angle (NSA); (2) use pelvic anteroposterior (AP) radiographs of unaffected hips to assess variability of NSA; and (3) evaluate the side-to-side variability of NSA to determine reliability of using the contralateral hip as a template.
designRetrospective cohort study.
settingAcademic Level 1 regional trauma center. PATIENTS/
participantsFour hundred six femora (203 patients) with standing AP pelvis radiographs were selected. Exclusions included lack of acceptable imaging, congenital abnormalities, or prior hip surgery.
interventionAn AP pelvis radiograph in the standing position. MAIN OUTCOME MEASUREMENTS: Bilateral NSA measurements obtained in a blinded fashion between 2 reviewers. Pearson coefficients and coefficient of determination assessed correlations and variability between left and right NSA. Concordance correlation coefficients assessed the interrater reliability between measurements performed by the 2 reviewers.
resultsTwo hundred three patients (406 femora) were assessed. Male patients had a lower overall NSA mean of 131.56 degrees ± 4.74 than females with 133.61 degrees ± 5.17. There was no significant difference in NSA side-to-side in females (P = 0.18), 0.3 degrees [95% confidence interval (-0.15 to 0.75)], or males (P = 0.68), 0.19 degrees [95% confidence interval (-0.74 to 1.12)]. There was a strong linear relationship between left and right femora (r2 = 0.70). Forty-one percent of patients fell within the 131-135 degrees range bilaterally. Eighty-eight percent of patients had <5 degrees difference in NSA bilaterally and 0% had >10 degrees difference.
conclusionsThere is no significant variability between bilateral femora in males and females. Use of this measurement method and contralateral NSA for proximal femur fracture planning is supported.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.