[Ectopic bone formation in neurological lesions (author's transl)]

Area of Science:

• Orthopedic Surgery
• Bone Biology

Background:

• Para-articular ectopic bone formation involves abnormal bone growth near joints.
• Ectopic ossification can lead to significant functional impairment.

Observation:

• Seventy cases in fifty patients were analyzed, with common causes including paraplegia, trauma, meningitis, and burns.
• The hip was the most frequent site (33 cases), followed by the elbow (23), knee (12), and shoulder (2).

Findings:

• Clinical, radiological, and pathological features were reviewed, with hypotheses on formation mechanisms proposed.
• Surgical options included arthrolysis, arthrodesis, epiphyseal resection, and prostheses.
• Recurrence was observed in 10% of cases.

Implications:

• Extensive lesions are more prevalent in paraplegic patients and those with hip involvement.
• Understanding these patterns aids in surgical planning and management of ectopic ossification.