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Year : 2019  |  Volume : 16  |  Issue : 3  |  Page : 93-97

Normative value of the patellar tendon size: A sonographic study of a cohort of healthy adults in a suburb of Lagos, Southwest Nigeria

1 Department of Radiography, Faculty of Clinical Sciences, College of Medicine of the University of Lagos, Idi-Araba, Lagos, Nigeria
2 Scancare Diagnostic Center, Ojodu-Berger, Ikeja, Nigeria
3 Department of Radiodiagnosis, Lagos University Teaching Hospital, Idi-Araba, Lagos, Nigeria
4 Ultrasound Unit, Ave Maria Hospital, Victoria Island, Lagos, Nigeria

Correspondence Address:
Dr. Cletus Uche Eze
Department of Radiography, Faculty of Clinical Sciences, College of Medicine of the University of Lagos, Yaba Campus, Lagos
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jcls.jcls_20_19

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Aim: This study aimed to determine patellar tendon (PT) size using sonographic technique. Materials and Methods: PT thickness (PTT), width, and cross-sectional area (CSA) were measured in 277 healthy adults. Mean was computed for patella tendon thickness, its width and CSA for the population. Thereafter, PT was correlated with, height, weight, and body mass index (BMI). Results: In the sample, 31.0% were male and 69.0% were female. Mean PTT, width, and CSA for the population were 4.7 ± 0.4 mm, 22.4 ± 3.8 mm, and 8.3 ± 1.7 mm2, respectively. Mean PTT was 4.8 ± 0.9 mm for men and 4.7 ± 0.2 mm for women; PT was significantly wider and thicker in men than women (P < 0.05). Difference in left and right PT sizes was not statistically significant (P > 0.05). Correlation between PT size and BMI was statistically significant. Conclusion: In healthy controls, a sonographically measured PTT >6 mm could be diagnostic of patellar tendinopathy as it appears to be 4 standard deviations greater than the mean. When using sonographic method to define population-specific normal value of PT size, individuals' gender and weight should be taken into cognizance.

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