• Kadir Ağladıoğlu, Nuray Akkaya, Harun R Güngör, Semih Akkaya, Nusret Ök, and Levent Özçakar.
• Department of Radiology, Pamukkale University Medical School, Denizli, Turkey.
• J Ultrasound Med. 2016 Nov 1; 35 (11): 2431-2438.

ObjectivesThe aim of this study was to explore the sonographic and elastographic properties of patellar and Achilles tendons in smoking and nonsmoking otherwise healthy adults.MethodsWe conducted a level 3 case-control analytical study. Smoking and nonsmoking volunteers (>18 years) without musculoskeletal system disorders were included in the study. Demographic characteristics and smoking habits (pack-years) were recorded. Proximal, middle, and distal third thicknesses of the patellar and Achilles tendons were measured by B-mode sonography. Strain ratio measurements of the same regions were measured by real-time ultrasound elastography.ResultsA total of 69 participants (57 male and 12 female; mean age ± SD, 35.5 ± 7.8 years) were evaluated in the study. Smoking (n = 35) and nonsmoking (n = 34) groups had no significant differences in terms of age, body mass index, sex, and activity level (all P > .05). Proximal, middle, and distal thirds of the patellar and Achilles tendons were significantly thinner in the smoking group (all P < .05). Furthermore, strain ratio measurements in the same regions were significantly lower in the smoking group (all P< .05). Patellar tendon thicknesses and strain ratios had negative correlations with the smoking amount (all P < .05).ConclusionsThickness and strain ratio measurements of patellar and Achilles tendons were reduced (thinner and harder tendons) in smokers. Clinical implications of these morphologic and elastographic changes should be investigated in future studies.© 2016 by the American Institute of Ultrasound in Medicine.

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