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High Prevalence of Achilles Tendon Enthesopathic Changes in Patients with Type 2 Diabetes Without Peripheral Neuropathy

Francesco Ursini Department of Health Sciences, University of Catanzaro “Magna Graecia,” Catanzaro, Italy.

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Franco Arturi Department of Medical and Surgical Sciences, University of Catanzaro “Magna Graecia,” Catanzaro, Italy.

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Salvatore D'Angelo Rheumatology Department of Lucania, San Carlo Hospital of Potenza and Madonna delle Grazie Hospital of Matera, Potenza, Italy.

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Lewa Amara Department of Health Sciences, University of Catanzaro “Magna Graecia,” Catanzaro, Italy.

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Kassandra Nicolosi Department of Health Sciences, University of Catanzaro “Magna Graecia,” Catanzaro, Italy.

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Emilio Russo Department of Health Sciences, University of Catanzaro “Magna Graecia,” Catanzaro, Italy.

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Saverio Naty Department of Health Sciences, University of Catanzaro “Magna Graecia,” Catanzaro, Italy.

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Caterina Bruno Department of Health Sciences, University of Catanzaro “Magna Graecia,” Catanzaro, Italy.

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Giovambattista De Sarro Department of Health Sciences, University of Catanzaro “Magna Graecia,” Catanzaro, Italy.

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Ignazio Olivieri Rheumatology Department of Lucania, San Carlo Hospital of Potenza and Madonna delle Grazie Hospital of Matera, Potenza, Italy.

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Rosa Daniela Grembiale Department of Health Sciences, University of Catanzaro “Magna Graecia,” Catanzaro, Italy.

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Background:

Metabolic disorders are known to alter the mechanical properties of tendons. We sought to evaluate the prevalence of asymptomatic Achilles tendon enthesopathic changes in patients with type 2 diabetes mellitus (T2DM) without peripheral neuropathy.

Methods:

We recruited 43 patients with T2DM and 40 controls. Neuropathy was excluded with the Michigan Neuropathy Scoring Instrument. Bilateral ultrasonography of the Achilles tendon enthesis was performed.

Results:

Patients with T2DM had a higher prevalence of hypoechogenicity (26.7% versus 2.5%; P = .0001), entheseal thickening (24.4% versus 8.7%; P = .007), and enthesophytes (74.4% versus 57.5%; P = .02). No differences were found in the number of patients with erosions (1.2% versus 0%; P > .99), cortical irregularities (11.6% versus 3.7%; P = .09), bursitis (5.8% versus 3.7%; P = .72), or tears (2.3% versus 1.2%; P > .99). The mean ± SD sum of abnormalities was higher in patients with T2DM (1.5 ± 1.1 versus 0.7 ± 0.6; P < .0001), as was the percentage of bilateral involvement (72.1% versus 45.0%; P = .01). Mean ± SD thickness did not differ between patients and controls (4.4 ± 1.1 mm versus 4.2 ± 0.8 mm; P = .07).

Conclusions:

According to our data, there is an elevated prevalence of asymptomatic Achilles tendon enthesopathic changes in patients with T2DM independent of peripheral neuropathy.

Corresponding author: Francesco Ursini, MD, Department of Health Sciences, University of Catanzaro “Magna Graecia,” viale Europa – 88100 Catanzaro, Italy. (E-mail: francesco.ursini@yahoo.it)
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