ArticleBone & joint open2022
Leg length discrepancy assessment in total hip arthroplasty: is a pelvic radiograph sufficient?
Article in Bone & joint open, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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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.
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Who cites it
14 citing papers in PubMed, 19 citations in OpenAlex.
- Radiographic evaluation of robot-assisted versus manual total hip arthroplasty: a multicenter randomized controlled trial.Journal of orthopaedics and traumatology : official journal of the Italian Society of Orthopaedics and Traumatology · 2024Trial
- Comparison of the accuracy for cup positioning between portable inertial navigation systems and manual methods during total hip arthroplasty in the anterolateral supine position.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2026Article
- Article
- Enhanced and express workflows in robotic total hip arthroplasty: A paired accuracy study using radiographic validation.Journal of robotic surgery · 2026Observational
- Comparing the express and enhanced workflows for restoration of hip length and combined offset using the Mako robotic arm-assisted total hip arthroplasty.Bone & joint open · 2026Article
- Patient preoperative positioning for THA affects postoperative acetabular cup angle and leg length discrepancy: a prospective case series.Scientific reports · 2025Article
- Learning Curves Associated With Robotic Total Hip Arthroplasty: A Scoping Review.Orthopaedic surgery · 2025Article
- Scanogram leg length measurement after total hip arthroplasty: not all landmarks are created equal.Skeletal radiology · 2025Article
- Prior leg length discrepancy in total hip arthroplasty patients causes greater implant complications and faster time to revision.World journal of orthopedics · 2025Article
- Leg Length Discrepancy After Total Hip Arthroplasty: A Review of Clinical Assessments, Imaging Diagnostics, and Medico-Legal Implications.Healthcare (Basel, Switzerland) · 2025Review
- A technical tip for assessing leg length discrepancy in radiographs with windswept hips.Journal of clinical orthopaedics and trauma · 2024Article
- EOS® is reliable to evaluate spinopelvic parameters: a validation study.BMC medical imaging · 2024Article
- Acetabular cup placement and offset control in robotic total hip arthroplasty performed through the modified anterolateral approach.International orthopaedics · 2023Article
- Does the use of intraoperative measurement reduce limb length discrepancies after total hip arthroplasty?BMC musculoskeletal disorders · 2023Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
aimsLeg length discrepancy (LLD) is a common pre- and postoperative issue in total hip arthroplasty (THA) patients. The conventional technique for measuring LLD has historically been on a non-weightbearing anteroposterior pelvic radiograph; however, this does not capture many potential sources of LLD. The aim of this study was to determine if long-limb EOS radiology can provide a more reproducible and holistic measurement of LLD.
methodsIn all, 93 patients who underwent a THA received a standardized preoperative EOS scan, anteroposterior (AP) radiograph, and clinical LLD assessment. Overall, 13 measurements were taken along both anatomical and functional axes and measured twice by an orthopaedic fellow and surgical planning engineer to calculate intraoperator reproducibility and correlations between measurements.
resultsStrong correlations were observed for all EOS measurements (r DISCUSSION: We found that the conventional measurement of LLD on AP pelvic radiograph does not correlate well with long leg measurements and may not provide a true appreciation of LLD. ASIS-to-ankle demonstrated improved detection of potential LLD than other EOS and radiograph measurements. Full length, functional imaging methods may become the new gold standard to measure LLD.Cite this article:
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