Prevalence of the fabella and its general characteristics in Turkish population with magnetic resonance imaging

Introduction The fabella is a fibrocartilaginous or ossified sesamoid bone in the knee, largely located in the lateral tendon of the head of the gastrocnemius muscle. In this study, the prevalence, gender differences, localization and size of the fabella were determined in a Turkish population to ma...

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Bibliographic Details
Published in:Surgical and radiologic anatomy (English ed.) 2021-12, Vol.43 (12), p.2047-2054
Main Authors: Unluturk, Ozge, Duran, Semra, Yasar Teke, Hacer
Format: Article
Language:English
Subjects:
Anatomic Bases of Medical
Anatomy
Bone imaging
Female
Femur
Gastrocnemius muscle
Gender
Humans
Imaging
Knee
Knee Joint
Localization
Magnetic Resonance Imaging
Male
Medicine
Medicine & Public Health
Orthopedics
Population
Population studies
Prevalence
Radiological and Surgical Techniques
Radiology
Retrospective Studies
Sesamoid Bones - diagnostic imaging
Sex differences
Statistical analysis
Surgery
Trauma
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Summary:Introduction The fabella is a fibrocartilaginous or ossified sesamoid bone in the knee, largely located in the lateral tendon of the head of the gastrocnemius muscle. In this study, the prevalence, gender differences, localization and size of the fabella were determined in a Turkish population to make a comparison with other population studies in the literature. Materials and methods Thousand patients (500 females, 500 males) who underwent knee magnetic resonance imaging (MRI) with fabella in all three planes, including axial, sagittal and coronal evaluated, retrospectively. All MRI examinations were performed using a 1.5 T unit. Patients with a history of trauma or operation, motion artifacts and patients who could not be evaluated due to image quality were excluded. Anteroposterior diameter in sagittal plan (sAP) of the fabella and the fabella-femur distance was measured. Measurements were evaluated with Pearson’s Chi-squared and Mann–Whitney U test for non-homogeneous data in SPSS program, and ANOVA test for homogeneous data. A p value of 
ISSN:0930-1038
1279-8517
DOI:10.1007/s00276-021-02817-3