[Calcific myonecrosis]

Area of Science:

• Orthopedic Surgery
• Trauma Management
• Musculoskeletal Pathology

Background:

• Calcific myonecrosis is a rare, late-onset complication of limb trauma.
• It typically follows compartment syndrome, often in the lower extremities.
• Dystrophic calcification develops years after the initial injury.

Observation:

• A 66-year-old male presented with left leg pain and swelling.
• A large, immobile mass was noted in the anterolateral left crus.
• Radiographs revealed linear calcifications without bone involvement.

Findings:

• Surgical exploration showed complete calcification of the anterior tibial compartment muscles.
• Histopathology confirmed calcific myonecrosis.
• The calcified tissue was not attached to the bone.

Implications:

• This case underscores the potential for very late presentation of calcific myonecrosis.
• Surgical excision can be an effective treatment for symptomatic calcific myonecrosis.
• Long-term follow-up is important for monitoring recurrence after treatment.