CT-guided percutaneous cryoablation for osteoid osteoma: initial experience in adults.
OBJECTIVE
The purpose of this study was to investigate the safety and efficacy of CT-guided percutaneous cryoablation for the treatment of osteoid osteoma in adults.


METHODS
A retrospective case series over a 30-month period involved 10 consecutive adult patients (nine male and one female patients; mean age, 27.9 years; age range, 16-49 years) who underwent CT-guided percutaneous cryoablation for management of osteoid osteoma. Clinical and technical success was evaluated with postprocedure MRI at 4-5 weeks and with digital numeric pain scores taken before and immediately after the procedure, as well as at primary follow-up (4-10 weeks; average, 5 weeks) and secondary follow-up (23-29 weeks; average, 24 weeks).


RESULTS
Clinical and technical success rates were 100%. Average digital numeric pain scores were 7.4 before the procedure, 1.5 after procedure, 0.5 at the primary follow-up, and 0.3 at secondary follow-up. No minor or major complications were noted during the procedure, recovery period, primary follow-up, or secondary follow-up.


CONCLUSIONS
CT-guided percutaneous cryoablation is safe and effective in the treatment of osteoid osteoma in adults.
1 Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada.
Tyler M
TM
Coupal
Paul I
PI
Mallinson
Peter L
PL
Munk
David
D
Liu
Paul
P
Clarkson
Hugue
H
Ouellette
D000293:Adolescent; D000328:Adult; D001859:Bone Neoplasms / Q000000981:diagnostic imaging* / Q000601:surgery*; D003452:Cryosurgery / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010017:Osteoma, Osteoid / Q000000981:diagnostic imaging* / Q000601:surgery*; D012189:Retrospective Studies; D025321:Surgery, Computer-Assisted; D014057:Tomography, X-Ray Computed; D055815:Young Adult