Microtherapy Berlin

10th laser ablation of an osteid osteoma

One year after the first MR-guided Laser ablation of an osteid osteoma at the Charité Berlin (Link), the method is now established in clinical routine. In the last 12 months, a total of 10 ablations of osteid osteomas have been performed in the open MRI of the Charité Mitte. Especially young patients benefit from the radiation-free treatment method and an in-patient stay of merely 24-48h. All treated patients are now free of pain symptoms.

For the 10th ablation, a new OR set-up of the open MRI, which is currently being developed, could be applied. An additional, larger real-time monitor and an MR-compatible beamer and thermometric monitoring of the procedure with color coded temperature maps and a control monitor directly adjacent to the patient are part of this new set-up.

The osteid osteoma is a benign bone tumor, which effects three times more men than women and typically occurs between the ages of ten and thirty. The OO is a sclerotic tumor of the long bones of the extremities. The tumor is characteristically painful at night and the occurring pain responds well NSAIDs, such as Asprin. The pain itself is caused by the well vascularized tumor nidus, which induces the surrounding sclerosis.

Image-guided tumor ablation is an effective and safe, minimally invasive treatment method in the therapy of OO, which has replaced the open resection approach in many hospitals. Compared to the open resection of the tumor, the minimally invasive approach helps reduce morbidity and reconvalescence. The open MRI offers several technical advantages when compared to CT-guided therapies; MRI allows MR-thermometric monitoring and is performed without the use of ionizing radiation. Only in certain cases, when the tumor is in a difficult location is it, that the open surgical approach is still the method of choice.

• Patient Information on Thermo-Ablation Therapy of Osteid Osteomas
• Article on Wikipedia about Osteid Osteoma

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