Annals of African medicine · 2025
Evaluation of Reference Values for the Patellotrochlear Index in the North Indian Population: A Cross-sectional Magnetic Resonance Imaging-based Study.
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Singh Shailendra, Tripathi Rahul Kumar, Singh Vishal Kumar, Kumar Amit, Mohan Ravindra, Kumar Dharmendra
Аннотация
BACKGROUND: The patella plays a crucial role in the extensor mechanism of the knee joint, significantly enhancing the efficiency of the quadriceps muscle. The alignment and height of the patella are critical for maintaining knee joint functionality and preventing knee-related disorders. The Patellotrochlear Index (PTI) is a novel measurement method that provides a more accurate assessment of patellar height and its relationship with the femoral trochlea, particularly in the North Indian population.
OBJECTIVE: This study aims to establish normal PTI values in the North Indian population and evaluate the PTI as a reliable method for measuring patellar height.
MATERIALS AND METHODS: A cross-sectional study was conducted at King Georges Medical University, Lucknow, involving 80 patients with suspected ligamentous knee injuries. Patients underwent magnetic resonance imaging examinations, and PTI measurements were obtained. Data analysis was performed using SPSS version 22, with statistical significance set at P < 0.05.
RESULTS: The mean age of the patients was 31.6 years (±5.6), with 66.3% males and 58.7% having the condition on the right side. The mean PTI was 0.52 (±0.12). PI values increased significantly with age ( P = 0.034) and were higher in females (0.56 ± 0.11) compared to males (0.50 ± 0.11) ( P = 0.024). Significant differences in PI values were also observed between the right (0.48 ± 0.10) and left (0.58 ± 0.11) sides ( P < 0.001).
CONCLUSION: The PTI is a dependable and repeatable indicator of patellar height, reflecting the true relationship between the patellar and trochlear articular surfaces. This index can be effectively used to diagnose and manage patellofemoral pain syndrome and other knee disorders, emphasizing its clinical relevance in the North Indian population.
OBJECTIVE: This study aims to establish normal PTI values in the North Indian population and evaluate the PTI as a reliable method for measuring patellar height.
MATERIALS AND METHODS: A cross-sectional study was conducted at King Georges Medical University, Lucknow, involving 80 patients with suspected ligamentous knee injuries. Patients underwent magnetic resonance imaging examinations, and PTI measurements were obtained. Data analysis was performed using SPSS version 22, with statistical significance set at P < 0.05.
RESULTS: The mean age of the patients was 31.6 years (±5.6), with 66.3% males and 58.7% having the condition on the right side. The mean PTI was 0.52 (±0.12). PI values increased significantly with age ( P = 0.034) and were higher in females (0.56 ± 0.11) compared to males (0.50 ± 0.11) ( P = 0.024). Significant differences in PI values were also observed between the right (0.48 ± 0.10) and left (0.58 ± 0.11) sides ( P < 0.001).
CONCLUSION: The PTI is a dependable and repeatable indicator of patellar height, reflecting the true relationship between the patellar and trochlear articular surfaces. This index can be effectively used to diagnose and manage patellofemoral pain syndrome and other knee disorders, emphasizing its clinical relevance in the North Indian population.