Diabetic myonecrosis: an uncommon diabetic complication

Area of Science:

• Endocrinology
• Diabetology
• Musculoskeletal Medicine

Background:

• Diabetic myonecrosis (DMN) is a rare, often overlooked complication of diabetes mellitus.
• It is typically associated with long-standing suboptimal glycemic control.
• The exact pathophysiology remains unclear, with multiple theories proposed but none fully explanatory.

Purpose of the Study:

• To review the pathophysiology, risk factors, diagnostic challenges, and management of diabetic myonecrosis.
• To highlight the importance of recognizing DMN and differentiating it from other diabetes-related conditions.
• To emphasize the role of MRI in diagnosis and optimal glycemic control in prevention.

Main Methods:

• Literature review of existing studies on diabetic myonecrosis.
• Analysis of proposed pathophysiological mechanisms.
• Evaluation of diagnostic modalities including MRI and muscle biopsy.
• Review of current treatment strategies and recurrence prevention.

Main Results:

• Diabetic renal disease is a significant risk factor for DMN development and recurrence.
• Diagnosis is frequently delayed due to lack of awareness and overlapping symptoms with other diabetic complications.
• Routine lab tests are often non-specific; muscle biopsy is invasive and not routinely recommended.
• MRI, alongside clinical history and risk factors, is crucial for diagnosis.

Conclusions:

• Diabetic myonecrosis requires increased clinical awareness for timely diagnosis.
• MRI is a valuable non-invasive tool for diagnosing DMN.
• Management focuses on analgesia, rest, and optimal glycemic control to prevent recurrence; physiotherapy is recommended post-acute phase.