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Thanh Thao Nguyen,1 Hoang Di Thu Le,2 Ngoc Thanh Hoang,1 Trong Binh Le,1 Thi Hien Ha1 1Department of Radiology, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam; 2Department of Radiology, Oncology Hospital, Da Nang, VietnamCorrespondence: Thanh Thao Nguyen, Department of Radiology, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam, Email ntthao@hueuni.edu.vnIntroduction: 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

Thuy Dung Pham,1 Ngoc Thanh Hoang,2 Trong Binh Le,2 Thi Hien Ha,2 Thanh Thao Nguyen2 1Department of Radiology, Binh Dinh General Hospital, Binh Dinh, Vietnam; 2Department of Radiology, Hue University of Medicine and Pharmacy, Hue University, Hue, VietnamCorrespondence: Thanh Thao Nguyen, Department of Radiology, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam, Email ntthao@hueuni.edu.vnPurpose: The main objective of this study was to provide a description and classification of lumbosacral spine injuries based on the new AOSpine classification system.Methods: A cross-sectional study was conducted on 75 patients with lumbosacral spine trauma who were admitted to Hue University of Medicine and Pharmacy Hospital in Hue, Vietnam, between April 2021 and July 2022. All patients underwent lumbosacral computed tomography, and each injured vertebra was classified according to the AOSpine classification system. The frequency and percentage of subtypes of lumbosacral spine trauma were determined.Results: The mean age of the patients was 50.6 ± 16.1 years, and the male-to-female ratio was 1.5:1. Falls and traffic accidents were found to be the main causes of injuries. Among the patients, 78.7% did not exhibit any neurological symptoms, while 1.3% experienced complete hemiplegia and 20% had incomplete hemiplegia. The most common fracture subtype was A3, accounting for 34.6% of cases.Conclusion: This study provides valuable insights into the demographics, associated injuries, and classification of traumatic lumbosacral spine injuries based on the new AOSpine classification system. The study found that falls and motor vehicle accidents were the main causes of these injuries, with a higher proportion of male patients. The majority of injuries were classified as type A fractures, while type C fractures were the least common. Sacral fractures were relatively infrequent and often associated with pelvic ring fractures. These findings contribute to our understandin

Thu Le Hoang Di,1 Thanh Hoang Ngoc,1 Dac Hong An Ngo,1 Nghi Thanh Nhan Le,2 Binh Le Trong,1 Khoan Le Trong,1 Thao Nguyen Thanh1 1Department of Radiology, Hue University of Medicine and Pharmacy, Hue University, Hue, Vietnam; 2Department of Surgery, Hue University of Medicine and Pharmacy, Hue University, Hue, VietnamCorrespondence: Thao Nguyen ThanhDepartment of Radiology, Hue University of Medicine and Pharmacy, Hue University, Hue, 53000, VietnamTel +84 906 44 99 64Email ntthao@hueuni.edu.vnIntroduction and Purpose: An abnormal patellar position has been proven to be associated with anterior knee pain and several other conditions that affect the patellofemoral joint. The purpose of this study was to determine the incidence of patella alta and patella baja and the applicability of the normal range of the Insall-Salvati ratio in the Vietnamese population.Methodology: Magnetic resonance imaging (MRI) was used to examine 455 Vietnamese subjects’ knees. The Insall-Salvati ratio—the ratio of patellar ligament length (LL) and patellar length (PL)—was measured using sagittal T1-weighted images.Results: The overall mean LL/PL ratio was 1.02 (standard deviation 0.15). No significant differences in the LL/PL ratio were observed between sexes. The frequencies of patella alta (Insall-Salvati ratio > 1.32) and patella baja (Insall-Salvati ratio < 0.72) were 0.9% and 2.4%, respectively.Conclusion: The Insall-Salvati ratio is applicable to Vietnamese populations in which high flexion activities such as kneeling and sitting cross-legged are customary. According to our measurement, the normal range of the ratio among Vietnamese subjects was 0.72 to 1.32.Keywords: Insall–Salvati ratio, patellofemoral joint, anterior knee pain, MRI, Vietnamese