ArticleInternational orthopaedics2016
The reliability of four widely used patellar height ratios.
Article in International orthopaedics, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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Who cites it
31 citing papers in PubMed.
- Tourniquet application during TKA did not affect the accuracy of implant positioning: a randomized clinical trial.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2018Trial
- Combined trochleoplasty and medial patellofemoral ligament reconstruction reduces patellar height.Journal of experimental orthopaedics · 2026Article
- Automatic measurement of Caton index on knee X-ray images using a key point detection model.European journal of radiology open · 2025Article
- Tuberosity-Sparing Anterior Opening-Wedge Tibial Osteotomy for Correcting Recurvatum: Effects on Functional Scores, Lower Limb Coronal Alignment, and Patellar Height.Orthopaedic journal of sports medicine · 2025Article
- Effect of radiographic malpositioning on patellar height measurements: implications for diagnosis and surgical planning. A retrospective observational study.European journal of orthopaedic surgery & traumatology : orthopedie traumatologie · 2025Observational
- Minimal changes in patella height after aseptic revision from unicompartmental to total knee arthroplasty.Archives of orthopaedic and trauma surgery · 2025Article
- Patella height measurements in patients with patellofemoral instability: the power to predict patella height indices.Archives of orthopaedic and trauma surgery · 2024Article
- Quadriceps muscle contraction causes medial patellofemoral ligament elongation by intermeshed fibers of vastus medialis oblique muscle.Journal of anatomy · 2024Article
- Reliability and modality analysis of patellar height measurement in pediatric knee.Frontiers in pediatrics · 2024Article
- Potential of patellar height measurement methods in predicting recurrent patellar dislocation incidence: a case-control study.BMC musculoskeletal disorders · 2023Article
- Three-Dimensional Printing of the Patellofemoral Joints of Patellar Instability Patients.Arthroscopy techniques · 2023Article
- Inter- and intra-observer reliability of patellar height measurements in patients with and without patellar instability on plain radiographs and magnetic resonance imaging.Skeletal radiology · 2022Article
- Evaluation of patella height in native knees and arthroplasty: an instructional review.SICOT-J · 2022Article
- Evaluation of age group and sex differences in the measurement of patellar height of pediatric knee in a Korean population.Frontiers in pediatrics · 2022Article
- Strong Agreement Between Magnetic Resonance Imaging and Radiographs for Caton-Deschamps Index in Patients With Patellofemoral Instability.Arthroscopy, sports medicine, and rehabilitation · 2021Article
- Sagittal patellar flexion angle measurement determines greater incidence of patella alta in patellar tendinopathy patients.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021Article
- Reliability of a Caton-Deschamps-derived patella height index for knee arthroplasty.International orthopaedics · 2021Article
- Patella alta is reduced following MPFL reconstruction but has no effect on quality-of-life outcomes in patients with patellofemoral instability.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2021Article
- Preoperative patellofemoral anatomy affects failure rate after isolated patellofemoral inlay arthroplasty.Archives of orthopaedic and trauma surgery · 2020Article
- A new method for evaluation of patellar height and the position of the joint line before and after total knee arthroplasty.BMC musculoskeletal disorders · 2020Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeThe objective of this study was to evaluate the inter-observer reliability and the intra-observer reliability of four patellar height ratios: Insall-Salvati (IS), modified Insall-Salvati (MIS), Blackburne-Peel (BP) and Caton-Deschamps (CD).
methodsThe patellar height ratios were assessed by four independent examiners using weight-bearing lateral knee radiographs in 30° flexion. Intra-class correlation coefficients and Fleiss' kappa's were determined.
resultsThe inter-observer reliability was excellent for the IS and moderate for the other ratios. When the ratio values were categorized, the inter-observer reliability was strong for the IS, moderate for the MIS and BP, and poor for the CD. The intra-observer reliability was excellent for the IS, MIS and CD, and strong for the BP. When the ratio values were categorized, the intra-observer reliability was strong for the IS and MIS, and moderate for the other ratios.
conclusionAlthough the IS showed best reliability, we advise to use the MIS as it showed the second best reliability but is, according to the literature, associated with better validity.
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