Authors: Masaya Miyazaki Jun Aoki Akiko Miyazaki Takahito Nakajima Yoshinori Koyama Tetsuya Shinozaki Keigo Endo
Publish Date: 2011/02/27
Volume: 29, Issue: 2, Pages: 138-143
Abstract
A total of 17 patie 17 patients 13 males 4 females mean age 191 years range 7–49 years with OO tibia n = 7 femur n = 5 acetabulum n = 2 radius n = 1 talus n = 1 lumbar spine n = 1 underwent RFA Using a cooltip electrode without the cooling system the lesion was heated to 90°C for 4 or 5 min Procedures were considered technically successful if the electrode was placed into the nidus and the target temperature was reached and maintained for at least 4 min Clinical success of the treatment was defined as complete or partial pain relief after RFAAll procedures were considered technically successful although two patients encountered complications pes equinus contracture skin burn Altogether 16 of the 17 patients 941 achieved complete or partial pain relief after primary RFA Two patients had pain recurrence with one of them treated successfully with a second RFA The overall clinical success rate was 882 Histological findings confirmed the presence of OO in 13 patients 765
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