ArticleLa Radiologia medica2017
Comparative US-MRI evaluation of the Insall-Salvati index.
Article in La Radiologia medica, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 10 citations in OpenAlex.
- Patellar maltracking with dynamic MRI: clinical feasibility and diagnostic utility.Skeletal radiology · 2026Article
- Association of patellofemoral malalignment with early trochlear and patellar chondromalacia: a prospective T2* mapping study.Diagnostic and interventional radiology (Ankara, Turkey) · 2026Article
- MRI analysis of the physiological patellofemoral joint morphology of adult knees.Skeletal radiology · 2025Article
- Reliability and modality analysis of patellar height measurement in pediatric knee.Frontiers in pediatrics · 2024Article
- Home ownership, full-time employment, and other markers of higher socioeconomic status are predictive of shorter time to initial evaluation, shorter time to surgery, and superior postoperative outcomes among lateral patellar instability patients undergoing medial patellofemoral ligament reconstruction.Knee surgery & related research · 2023Article
- A comparison of sagittal MRI and lateral radiography in determining the Insall-Salvati ratio and diagnosing patella alta in the pediatric knee.Pediatric radiology · 2022Article
- Patellar height measurements: Insall-Salvati ratio is most reliable method.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020Article
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeTo investigate whether the universally accepted range of normal patellar height ratio derived from MRI for the Insall-Salvati (IS) method could be similarly applied to ultrasound (US). MATERIALS AND
methodsThis study included 52 patients (age range 11-75 years) who underwent a bi-modality (US and MRI) examination, with a total of 60 knees evaluated. IS index (ratio of the patella tendon length to length of the patella) was acquired with both methods. Two operators, with different experiences of musculoskeletal imaging and blinded to the results of other investigators, separately performed the MRI and US measurements.
resultsFor the two operators, MRI reported a mean value of patellar height ratio of 1.10 ± 0.16 (mean ± standard deviation SD), while US a mean value of 1.17 ± 0.16 (mean ± SD). For comparable results, the small addition of 0.16 is needed for the measurements on US compared with MRI. Inter-observer agreements using intra-class correlation coefficient (ICC) was, respectively, 0.97 for MRI and 0.98 for US. The difference of mean values in patellar height ratios between MRI and US was not statistically significant (p = 0.15). The ICC between the two modalities was 0.94.
conclusionAccording to our experience, IS index can be appropriately evaluated on US images, reducing the need of other imaging techniques.
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