Characteristics of Patellofemoral Measurement in Indonesian Population Using Magnetic Resonance Imaging
DOI:
https://doi.org/10.3889/oamjms.2021.5602Keywords:
Insall-Salvati ratio, Caton-deschamps index, Trochlear angle, Lateral trochlear inclination, Tibia tubercle-trochlear groove distance, Trochlear depth, IndonesianAbstract
BACKGROUND: The patellofemoral join is a unique complex joint formed by articulation of the patella and the femoral trochlea. Normal measures for patellofemoral parameters have been published.
AIM: This study aimed to describe the characteristics of patellofemoral measurements in Indonesian population using magnetic resonance imaging (MRI).
METHODS: This descriptive total sampling study was conducted from May 2019 to August 2020. The parameters of the measurements in this study include Insall-Salvati ratio, Caton-Deschamps index, trochlear angle, lateral trochlear inclination, TT (tibia tubercle) – TG (trochlear groove) distance, and trochlear depth. The mean results of the measurements were compared with the normal value measurements that are internationally used.
RESULTS: A total of 100 normal knees MRI scan from patients consisting of 54 (54%) males and 46 (46%) females, with an average age of 35.09 ± 12.77 (19–60) years old. The average body mass index (BMI) was 28.07 ± 3.0 (22–34). Based on ethnicity, subjects were mostly Javanese (66%), Sundanese (12%), Madura (4%), Minangkabau (7%), and the others (11%). The mean of Insall-Salvati ratio was 1.09 ± 0.17 (0.49–1.60). The mean of Caton-Deschamps index was 0.97 ± 0.16 (0.62–1.64). The mean of trochlear angle was 138.97° ± 119.7 (122°–160°). The mean of lateral trochlear inclination was 20.37° ± 4.56 (11.0°–30.6°). The mean of TT-TG distance was 13.76 ± 5.86 (4.9–41), and the mean of trochlear depth was 5.18 ± 1.87 (1.05–8.6). Those values were within normal range of international values. There were no significant differences between comparison of males and females.
CONCLUSION: The means of Insall-Salvati ratio, Caton-Deschamps index, trochlear angle, lateral trochlear inclination, and TT-TG trochlear depth of the Indonesian people were within the international normal range, and higher than other countries’ published measurements.
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Copyright (c) 2021 Sholahuddin Rhatomy, Kurniawan Silalahi, Anggaditya Putra, Nolli Kresonni (Author)
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