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Objective <p>Musculoskeletal complications represent a significant burden in diabetes, yet the distinct presentation between Type 1 (T1DM) and Type 2 Diabetes Mellitus (T2DM) remains under-characterized. This study aimed to evaluate and quantify the burden of rheumatic manifestations and subclinical enthesopathy in these two distinct clinical phenotypes.</p> Methods <p>We conducted a cross-sectional analysis of 65 patients (21 T1DM, 44 T2DM). A comprehensive rheumatological evaluation assessed adhesive capsulitis (defined as painful restriction of active and passive motion in ≥ 2 planes), knee osteoarthritis (per American College of Rheumatology clinical classification criteria), cheiroarthropathy, and soft tissue rheumatism. High-resolution musculoskeletal ultrasound evaluated five bilateral entheseal sites using the Glasgow Ultrasound Enthesitis Scoring System (GUESS). Effect sizes (Cohen’s d) and 95% Confidence Intervals (CI) were calculated to assess the magnitude of intergroup differences.</p> Results <p>The T2DM phenotype was characterized by older age and higher BMI compared to T1DM. T2DM patients exhibited a markedly higher prevalence of adhesive capsulitis, knee osteoarthritis, and anserine bursitis. Ultrasound revealed a substantially higher enthesopathy burden in the T2DM group, with a mean GUESS score of 6.8 ± 2.1 compared to 1.1 ± 0.2 in T1DM. The effect size for the difference in enthesopathy scores (Cohen’s d = 3.29) exceeded the effect size for the age difference (d = 2.79), suggesting that the observed structural burden may not be fully explained by age alone. Available HbA1c data showed similarly suboptimal glycemic control in both groups.</p> Conclusion <p>T2DM was associated with a higher burden of structural entheseal abnormalities and higher GUESS scores compared with T1DM. These findings may reflect the combined influence of obesity, metabolic factors, and age. Interpretation should consider baseline demographic differences between groups and the broad clinical definitions employed.</p>

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The distinct musculoskeletal phenotypes of Type 1 and Type 2 diabetes: a sonographic characterization of enthesopathy burden

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月19日

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  • Adel Ibrahim Azzam,
  • Taha Ibrahim Aladrosy,
  • Saad Ghanem,
  • Ashraf Abdelsalam Moustafa,
  • Hatem Saadeldin,
  • Yazeed Mohammed AlZahrani,
  • Hilal Rajeh AlZahrani,
  • Afrah Abdulraheem Alshahrani,
  • Abdulaziz Altowairqi,
  • Abdullah Almalki

摘要

Objective

Musculoskeletal complications represent a significant burden in diabetes, yet the distinct presentation between Type 1 (T1DM) and Type 2 Diabetes Mellitus (T2DM) remains under-characterized. This study aimed to evaluate and quantify the burden of rheumatic manifestations and subclinical enthesopathy in these two distinct clinical phenotypes.

Methods

We conducted a cross-sectional analysis of 65 patients (21 T1DM, 44 T2DM). A comprehensive rheumatological evaluation assessed adhesive capsulitis (defined as painful restriction of active and passive motion in ≥ 2 planes), knee osteoarthritis (per American College of Rheumatology clinical classification criteria), cheiroarthropathy, and soft tissue rheumatism. High-resolution musculoskeletal ultrasound evaluated five bilateral entheseal sites using the Glasgow Ultrasound Enthesitis Scoring System (GUESS). Effect sizes (Cohen’s d) and 95% Confidence Intervals (CI) were calculated to assess the magnitude of intergroup differences.

Results

The T2DM phenotype was characterized by older age and higher BMI compared to T1DM. T2DM patients exhibited a markedly higher prevalence of adhesive capsulitis, knee osteoarthritis, and anserine bursitis. Ultrasound revealed a substantially higher enthesopathy burden in the T2DM group, with a mean GUESS score of 6.8 ± 2.1 compared to 1.1 ± 0.2 in T1DM. The effect size for the difference in enthesopathy scores (Cohen’s d = 3.29) exceeded the effect size for the age difference (d = 2.79), suggesting that the observed structural burden may not be fully explained by age alone. Available HbA1c data showed similarly suboptimal glycemic control in both groups.

Conclusion

T2DM was associated with a higher burden of structural entheseal abnormalities and higher GUESS scores compared with T1DM. These findings may reflect the combined influence of obesity, metabolic factors, and age. Interpretation should consider baseline demographic differences between groups and the broad clinical definitions employed.