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• Clinical Article •
The study of MRI patterns of osteochondral injury in adolescents after acute lateral patellar dislocation
LUO Wei  ZHANG Ya-lin  Ren Lu 

DOI:10.3969/j.issn.1674-8034.2015.11.008.


[Abstract] Objective: To analyze MRI characteristics of osteochondral injury patterns in adolescents after acute lateral patellar dislocation.Materials and Methods: MR images of 41 adolescents after acute lateral patellar dislocation were retrospectively reviewed. Routine MR scanning was performed in axial, sagittal and coronal planes, including T1WI, T2WI and fat saturation sequence.Results: The prevalence rate of osteochondral injury was 90.2% (37/41) in adolescent group after acute lateral patellar dislocation. The prevalence rate of Ⅰ, Ⅱ, Ⅲ, Ⅳ degree were 10.5%, 12.2%, 24.5%, 52.6% in adolescent group. The prevalence rate of osteochondral injury at patellar attachment, femoral attachment and both patellar-femoral attachment were 32.4%, 13.5%, 54.0% in adolescent group.Conclusion: Ⅲ, Ⅳ injury and at patellar attachment, both patellar-femoral attachment were most easily occurred in adolescents.
[Keywords] Patellar dislocation；Osteochondral；Magnetic resonance imaging

LUO Wei* Department of Radiology, Changsha Central Hospital, Hunan Province, Changsha 410004, China

ZHANG Ya-lin Department of Radiology, Changsha Central Hospital, Hunan Province, Changsha 410004, China

Ren Lu Department of Radiology, Changsha Central Hospital, Hunan Province, Changsha 410004, China

*Correspondence to: Luo W, E-mail: cjmvluowei@sina.com

Conflicts of interest   None.

ACKNOWLEDGMENTS  This topic is the part of Hunan Province Project No. 2014FJ6014
Received  2015-08-24
Accepted  2015-10-19
DOI: 10.3969/j.issn.1674-8034.2015.11.008
DOI:10.3969/j.issn.1674-8034.2015.11.008.

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