Evaluation of the Insall-Salvati Ratio Among the Vietnamese Population: Application for Diagnosis of Patellar Malalignment

Di, Thu Le Hoang; Hoang, Ngoc Thanh; Ngo, Dac Hong An; Le, Nghi Thanh Nhan; Le, Trong Binh; Trong, Khoan Le; Thanh, Thao Nguyen

doi:10.2147/orr.s306316

Cited by 3 publications

(5 citation statements)

References 19 publications

(35 reference statements)

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“…Several studies showed no significant differences in IS ratio between gender. 16 On the other hand, our study showed a significantly higher IS ratio in males compared to females, which is probably due to a higher percentage of male participants compared to females (146 vs 56). Although the mean IS ratio was statistically significant, the clinical value was not clinically significant (1.02 ± 0.13 vs 0.94 ± 0.16).…”

Section: Discussioncontrasting

confidence: 50%

Measurements of Patellofemoral Morphology Characteristics in Indonesian Population: an MRI Based Study

Pontoh¹,

Dilogo

Kamal

et al. 2021

J. prof. medika

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Patellar malalignment is the imbalance relationship between patella and trochlea, in which clinical findings most of the time are obscured; hence diagnosis is often challenging. Magnetic resonance imaging (MRI) is the most sensitive tool to detect subtle patellar malalignment features, so diagnosis can be made early. However, there has been no clear consensus on the normal value of patella morphology until today. This study aims to determine patellofemoral morphology values in Indonesian using MRI. This was a retrospective study of 202 patients aged 18-40 years old with knee problems without patellar instability. Patellar morphology parameters including Insal Savati ratio (IS ratio), patellar tilt angle (PTA), sulcus angle (SA) and tibial tubercle-trochlear groove distance (TT-TG) were evaluated and recorded for statistical analysis. There was no significant correlation between anthropometric values and patellar morphology values. There were significantly higher PTA, SA and TT-TG values in females compared to males. The mean value of the IS ratio in the Asian population using MRI was 0.99 ± 0.14, PTA was 9.09 ± 6.88, SA was 139.20 ± 6.38, and TT-TG distance was 8.00 ± 5.25. Further studies with larger samples and multi-center results are required.

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Section: Discussioncontrasting

confidence: 50%

Measurements of Patellofemoral Morphology Characteristics in Indonesian Population: an MRI Based Study

Pontoh¹,

Dilogo

Kamal

et al. 2021

J. prof. medika

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“…26 This difference can be attributed to the long-term stretching of the patellar tendon resulting from common activities like squatting and kneeling in certain countries like India, China, Vietnam, and the Middle East. 12,21,27,28 In our study, we observed that the Insall-Salvati ratio is higher in women compared to men, and this difference is statistically significant. The ratio for women and men in our study was 0.99 ± 0.13 and 0.93 ± 0.15, respectively.…”

Section: Insall-salvati Ratiosupporting

confidence: 44%

Section: Discussionmentioning

confidence: 99%

“… - Insall-Salvati ratio: ratio of patellar ligament length and patellar height. According to a previous study, 12 the normal range of the Insall-Salvati ratio is [0.72; 1.32]. A value less than 0.72 is defined as patella baja, while a value greater than 1.32 indicates patella alta.…”

Section: Research Subjects and Methodologymentioning

confidence: 99%

“…Certain research has indicated that ethnic variances may impact the morphological aspects of the patellar joint. [12][13][14] Therefore, this study was undertaken to delineate the MRI features of the patellofemoral joint in Vietnamese adults.…”

Section: Introductionmentioning

confidence: 99%

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Morphologic Evaluation of the Patella: The Impact of Gender and Age

Nguyen,

Le,

Hoang

et al. 2024

ORR

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Introduction The patellofemoral joint is a complex joint that plays a crucial role in knee joint function and stability. This study aims to describe the MRI characteristics of the patellofemoral joint in Vietnamese adults. Subjects and Methodology A cross-sectional study was conducted on 280 patients at Hue UMP Hospital from May 2020 to May 2021. All patients underwent knee MRI using Siemens Magnetom Amira 1.5 Tesla. The evaluation parameters included the morphology of the patella and the femoral trochlea. Results The study found that the morphological parameters of the patellar joint varied significantly between genders and age groups. The mean largest patellar transverse diameter was 4.26 ± 0.37 cm, the average length of the lateral joint facet was 2.5 ± 0.26 cm, and the medial joint facet was 2.0 ± 0.25 cm. The patellar height was 4.07 ± 0.35 cm. The indexes of patellar morphology were higher in men than in women, except for the lateral-medial facet ratio. The most common Wiberg classification was type B (63.9%), followed by type C (25.4%), and type A was the least common (10.7%). There was a statistically significant difference in the patellar measurements between different age groups. There was a weak negative linear correlation between the dimensions of the largest transverse diameter, the length of the articular surface, the patellar articular angle, and the age of the patient. Additionally, there was a moderate inverse linear relationship between patellar height and patient age. Conclusion This study highlights the significant variations in patellar morphology based on gender and age. The findings emphasize the importance of careful assessment and consideration of these variations in the imaging evaluation of the patellofemoral joint.

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