📖 Our Osteoid Osteoma Centre
Cochin AP-HP is a national reference centre for the treatment of osteoid osteoma by CT-guided percutaneous radiofrequency ablation. This benign bone tumour — characterised by severe nocturnal pain relieved by aspirin — affects adolescents and young adults, most commonly in the femur or tibia.
CT-guided RFA is the gold standard treatment, achieving a 95% cure rate in a single session without surgery, without bone resection, and without significant scarring. Under short general anaesthesia, an RFA electrode is inserted to the nidus and heated to 90°C for 4–6 minutes — permanently destroying the lesion. Same-day discharge in most cases. Fully reimbursed. No patient fees.
95%
Cure rate in 1 session
<5%
Recurrence rate
Day case
General anaesthesia
❓ FAQs
Classic presentation: severe pain at night, worse in the first hours of sleep, dramatically relieved by aspirin or NSAIDs. CT scan (thin slices, <1 mm) shows a small lucent nidus (<1.5 cm) with surrounding sclerosis. Bone scintigraphy shows intense focal uptake.
Pain typically resolves within days after the procedure. Most patients can stop aspirin/NSAIDs within 1–2 weeks. Full sporting activity resumes after 4–6 weeks.
🔗 Related pages
🇫🇷 French version: centre-osteome-osteoide.html