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KMID : 1237720210540030315
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Anatomy & Cell Biology
2021 Volume.54 No. 3 p.315 ~ p.320
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Radiological study of fabella in Omani subjects at a tertiary care center
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Al Matroushi Omar Darwish
Sirasanagandla Srinivasa Rao
Al Shabibi Ammar
Al Obaidani Athari
Al Dhuhli Humoud
Jaju Sanjay
Al Mushaiqri Mohamed
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Abstract
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Ethnic diversity is associated with variability in the prevalence rates of fabella. We aimed to evaluate the prevalence and the radiological features of fabella in Omani patients. This is a retrospective analysis of hospital electronic database of patients referred for radiological investigations (radiographs and magnetic resonance imaging) of the knee, at a tertiary care referral center. Descriptive statistics were performed to determine the prevalence of fabella. Chi-square test was used to determine the association between sex or age with respect to the presence of fabella. A total of 813 knee radiographs were reviewed for the presence of fabella. Fabella was found in 24.1% of total cases. A statistically significant sex difference was observed with respect to the presence of fabella in left knees in males (P<0.01). The presence of fabella was significantly associated with age groups for the right (P<0.05) and left knees (P<0.01). In magnetic resonance imaging film reviews, all the identified fabellae (20.2%) were bony structures and were located within the lateral head of the gastrocnemius muscle. There were no cartilaginous fabellae detected. The current study revealed a prevalence of 24.1% of fabella in Omani subjects which is almost similar to the results as seen in Caucasian ethnic populations.
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KEYWORD
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Prevalence, Sesamoid bones, Knee joint, Radiography
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