CT-guided microwave ablation of osteoid osteoma: Long-term outcome in 28 patients.
Diagn Interv Imaging
; 103(9): 427-432, 2022 Sep.
Article
in En
| MEDLINE
| ID: mdl-35523700
ABSTRACT
PURPOSE:
The purpose of this study was to assess the long-term efficacy of CT-guided microwave ablation (MWA) in the treatment of osteoid osteoma. Secondary objectives were to assess early outcome and side-effects of MWA. MATERIALS ANDMETHODS:
Twenty-eight consecutive patients (18 men, 10 women) with a median age of 19.5 years (IQR 16, 25.5) with a total of 28 non-spinal osteoid osteoma treated by CT-guided MWA were retrospectively included. The ablations were performed with a median power and duration of 60 Watt and 1 min 30 s, respectively. Pain referred to osteoid osteoma was assessed at predefined time points using a 0-10 numeric rating scale. At one month, contrast-enhanced follow-up MRI was performed to evaluate the nidus vascularization and the volume of necrosis induced by MWA. Clinical success was defined by the absence of osteoid osteoma-related pain, and technical success was defined by the presence of necrosis of the nidus on the one-month post-MWA MRI.RESULTS:
Long term success rate was 93% (26/28) after a follow-up of 55.5 months (IQR 25.75, 74.5) and technical success rate was 96 % (25/26). One late failure was observed after a patient had been declared cured at one month but the formal proof of a late recurrence of osteoid osteoma could not be brought. Three minor complications were reported including mild reversible superficial radial nerve injury with a skin burn (grade 2) in one patient and moderate skin burn only in two patients.CONCLUSION:
Our results suggest that CT-guided MWA is an effective option for a minimally-invasive treatment of osteoid osteoma with a low rate of complication and no late recurrence.Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Osteoma, Osteoid
/
Bone Neoplasms
/
Catheter Ablation
/
Soft Tissue Injuries
Type of study:
Observational_studies
/
Prognostic_studies
Limits:
Female
/
Humans
/
Male
Language:
En
Journal:
Diagn Interv Imaging
Year:
2022
Document type:
Article
Affiliation country:
France