Observational studyInternational orthopaedics2024
Intraoperative live measurement of femoral head size for acetabular cup sizing: simple, accurate, and green!
Observational study in International orthopaedics, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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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
5 citing papers in PubMed.
- Reconstruction of comminuted posterior acetabular wall fractures using the outer table of the anterior iliac tubercle: anatomical matching and a clinical pilot study.International orthopaedics · 2026Article
- Acetabular cup-native femoral head size discrepancy in primary total hip arthroplasty: A meta-analysis on intraoperative sizing verification.Journal of experimental orthopaedics · 2026Review
- Computerised Tomography based three dimensional planning predicts cup size with near-perfect accuracy in robotic total hip arthroplasty: a study of six hundred and nineteen hips.International orthopaedics · 2026Article
- Center of rotation restoration and acetabular cup sizing in total hip arthroplasty: the predictive role of radiographic femoral head diameter. A single-center study from the FP-UCBM hip study group.Frontiers in surgery · 2026Article
- Does two dimensional templating allow for the use of reduced-size ancillaries in total hip arthroplasty?International orthopaedics · 2024Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTemplating is the first step in achieving a successful total hip arthroplasty. We hypothesize that native head size is highly correlated with implanted cup size. Therefore, the purpose of this study is to look for a correlation between sizes of the intra-operative measurement of the femoral head and the implanted cup.
methodsThis is a monocentric observational study conducted from December 2018 till January 2023. All patients admitted for a primary total hip arthroplasty were included and retrospectively reviewed. Intra-operative femoral head measurement, radiographic femoral head diameter, templated (planned) cup size, and definitive implanted cup size were recorded.
resultsThe sample included 154 patients (85 female and 69 males) with a mean age of 66.2 ± 10.4 years. There were 157 THA cases; 82 on the right side and 75 on the left side. The native head size and acetate template on digital radiographs were the most significantly positively correlated with cup size (P < 0.0001) while the radiological head size was significantly negatively correlated with cup size (P = 0.009). The implanted cup was on average 2 ± 2 mm bigger than the native head size measured intra-operatively.
conclusionThe native femoral head diameter measured intra-operatively is a simple and reliable tool to help the surgeons choose the proper size of the acetabular cup, preventing complications during surgery hence optimizing results post operatively. This technique would contribute to a more ecofriendly orthopaedic reconstructive surgery.
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Registered trials
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