The J-sign in patellar maltracking

The J-sign on clinical examination is suggestive of patellar maltracking and potential instability. 1 2 Figure 1; Clinical photograph showing the knee in flexion (A) and in extension (B). Contributors: OH and PE performed the literature review; PE provided the image and video; OH and ML revised the...

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Bibliographic Details
Published in:BMJ case reports 2018-02, Vol.2018, p.bcr-2017-222887
Main Authors: Hadidi, Omar, Ellanti, Prasad, Lincoln, Marc, Hogan, Niall
Format: Article
Language:English
Subjects:
Adult
Case reports
Diagnosis, Differential
Humans
Images In
Knee
Male
Manipulation, Orthopedic
Patella - diagnostic imaging
Patella - physiopathology
Patellar Dislocation - diagnostic imaging
Patellar Dislocation - physiopathology
Patellar Dislocation - surgery
Physical therapy
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Summary:The J-sign on clinical examination is suggestive of patellar maltracking and potential instability. 1 2 Figure 1; Clinical photograph showing the knee in flexion (A) and in extension (B). Contributors: OH and PE performed the literature review; PE provided the image and video; OH and ML revised the manuscript; NH supervised the writing of the manuscript and treated the patient.
ISSN:1757-790X
1757-790X
DOI:10.1136/bcr-2017-222887