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- Title
Patellar tendon biomechanical and morphologic properties and their relationship to serum clinical variables in persons with prediabetes and type 2 diabetes.
- Authors
Patel, Shivam H.; Campbell, Nathan W. C.; Emenim, Chinonso E.; Farino, Dominick O.; Damen, Frederick W.; Rispoli, Joseph V.; Goergen, Craig J.; Haus, Jacob M.; Sabbaghi, Arman; Carroll, Chad C.
- Abstract
Tendon biomechanical properties and fibril organization are altered in patients with diabetes compared to healthy individuals, yet few biomarkers have been associated with in vivo tendon properties. We investigated the relationships between in vivo imaging‐based tendon properties, serum variables, and patient characteristics across healthy controls (n = 14, age: 45 ± 5 years, body mass index [BMI]: 24 ± 1, hemoglobin A1c [HbA1c]: 5.3 ± 0.1%), prediabetes (n = 14, age: 54 ± 5 years, BMI: 29 ± 2; HbA1c: 5.7 ± 0.1), and type 2 diabetes (n = 13, age: 55 ± 3 years, BMI: 33 ± 2, HbA1c: 6.7 ± 0.3). We used ultrasound speckle‐tracking and measurements from magnetic resonance imaging (MRI) to estimate the patellar tendon in vivo tangent modulus. Analysis of plasma c‐peptide, interleukin‐1β (IL‐1β), IL‐6, IL‐8, tumor necrosis factor‐α (TNF‐α), adiponectin, leptin, insulin‐like growth factor 1 (IGF‐1), and C‐reactive protein (CRP) was completed. We built regression models incorporating statistically significant covariates and indicators for the clinically defined groups. We found that tendon cross‐sectional area normalized to body weight (BWN CSA) and modulus were lower in patients with type 2 diabetes than in healthy controls (p < 0.05). Our regression analysis revealed that a model that included BMI, leptin, high‐density lipoprotein (HDL), low‐density lipoprotein (LDL), age, and group explained ~70% of the variability in BWN CSA (R2 = 0.70, p < 0.001). For modulus, including the main effects LDL, groups, HbA1c, age, BMI, cholesterol, IGF‐1, c‐peptide, leptin, and IL‐6, accounted for ~54% of the variability in modulus (R2 = 0.54, p < 0.05). While BWN CSA and modulus were lower in those with diabetes, group was a poor predicter of tendon properties when considering the selected covariates. These data highlight the multifactorial nature of tendon changes with diabetes and suggest that blood variables could be reliable predictors of tendon properties.
- Subjects
PATELLAR tendon; TYPE 2 diabetes; SOMATOMEDIN C; PREDIABETIC state; MAGNETIC resonance imaging
- Publication
Journal of Orthopaedic Research, 2024, Vol 42, Issue 8, p1653
- ISSN
0736-0266
- Publication type
Article
- DOI
10.1002/jor.25816