ArticleSkeletal radiology2014
A new reference line in diagnosing a high-riding patella on routine digital lateral radiographs of the knee.
Article in Skeletal radiology, 2014. 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.
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Who cites it
5 citing papers in PubMed, 14 citations in OpenAlex.
- 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
- Letter to the Editor: I Spy With my Little Clinician's Eye (CE) ….Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2020Article
- Is the Clinician's Eye a Valid and Reproducible Tool for Diagnosing Patella Alta on a Lateral Knee Radiography?Journal of the American Academy of Orthopaedic Surgeons. Global research & reviews · 2020Article
- Patellar height measurements: Insall-Salvati ratio is most reliable method.Knee surgery, sports traumatology, arthroscopy : official journal of the ESSKA · 2020Article
- The reliability of four widely used patellar height ratios.International orthopaedics · 2016Article
Corrections and comments
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo propose a new reference line in diagnosing a high-riding patella (patella alta) on routine digital lateral radiographs of the knee. MATERIALS AND
methodsOn 64 routine digital lateral radiographs of adult knees with no bone pathology or surgery and over the range of knee flexion between 1.6° and 79.1° (34.4°± 16.6°), the long axis of the superimposed egg-shaped femoral condyles was drawn and moved upward to pass through the point where the posterior contours of the femoral diaphysis and the femoral condyles meet-the posterior reference point-to become a new reference line. Any part of the patella crossing the new reference line indicated a high-riding patella. The new reference line was compared with the four most common patellar height ratios (Insall-Salvati, Grelsamer-Meadows or the modified Insall-Salvati, Caton Deschamps, and Blackburne-Peel) for the drawing time, accuracy, and reproducibility (intra- and interobserver agreement).
resultsThe new reference line required approximately one-third to one-half of the drawing time compared to the most common patellar height ratios, with equal accuracy and complete reproducibility. On the contrary, the reproducibility of the most common patellar height ratios ranged from poor to moderate, with the best results for the Insall-Salvati ratio.
conclusionsThe new reference line proved to be a very simple, accurate, and reproducible tool in diagnosing a high-riding patella. We believe that our preliminary results are an encouraging impetus to more complex research.
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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.