title: Osteoid osteoma: can impedance levels in radiofrequency thermocoagulation predict recurrence?
abstract: Objective. To evaluate rise in impedance during percutaneous radiofrequency thermocoagulation (PRFTC) of osteoid osteomas as a predictor of local recurrence. Design and Patients. A prospective study of 23 patients (24 PRFTC procedures) with minimum of 2.25-year followup (average 3.3 years). Average age 19.6 years (range 4-44), sex ratio 15 : 8 (male : female), 16 nondiaphyseal, 7 diaphyseal. Results. In 19 procedures, an increase in impedance was measured-no recurrences have occurred in this group to date. In 5 procedures, no increase in impedance was seen (3 non-diaphyseal, 2 diaphyseal), and 1 recurrence has been seen in this group to date. This difference is statistically significant with a P value of .05.
authors.affiliation: Department of Musculoskeletal Tumour Surgery, The Robert Jones and Agnes Hunt Orthopaedic and District Hospital, Oswestry, Shropshire SY10 7AG, UK.
authors.forename: Matthew
authors.initials: M
authors.lastname: Ockendon
authors.forename: Jonathan J
authors.initials: JJ
authors.lastname: Gregory
authors.forename: Gillian L
authors.initials: GL
authors.lastname: Cribb
authors.forename: W Paul
authors.initials: WP
authors.lastname: Cool
authors.forename: D Charles
authors.initials: DC
authors.lastname: Mangham
authors.forename: Radhesh
authors.initials: R
authors.lastname: Lalam
references.citation: J Pediatr Orthop B. 2003 Jul;12(4):244-52
references.pmid: 12821840
references.citation: Radiology. 1994 Apr;191(1):217-23
references.pmid: 8134575
references.citation: J Radiol. 1996 Jan;77(1):37-40
references.pmid: 8815223
references.citation: Radiology. 1997 Jun;203(3):843-8
references.pmid: 9169714
references.citation: Clin Orthop Relat Res. 2000 Apr;(373):115-24
references.pmid: 10810468
references.citation: J Bone Joint Surg Am. 1975 Mar;57(2):154-9
references.pmid: 1112841
references.citation: Skeletal Radiol. 2005 Nov;34(11):702-6
references.pmid: 16007462
references.citation: Aust N Z J Surg. 1975 Nov;45(4):412-5
references.pmid: 1061564
references.citation: Radiology. 1999 Sep;212(3):687-92
references.pmid: 10478233
references.citation: J Foot Ankle Surg. 2003 Nov-Dec;42(6):359-62
references.pmid: 14688778
references.citation: J Vasc Interv Radiol. 2003 Mar;14(3):375-80
references.pmid: 12631644
references.citation: Radiology. 2003 Oct;229(1):171-5
references.pmid: 12944597
references.citation: Orthop Traumatol Surg Res. 2009 Oct;95(6):454-7
references.pmid: 19740714
references.citation: AJNR Am J Neuroradiol. 1998 Nov-Dec;19(10):1955-8
references.pmid: 9874556
references.citation: Radiology. 2004 Dec;233(3):757-62
references.pmid: 15498897
references.citation: J Bone Joint Surg Br. 2001 Apr;83(3):391-6
references.pmid: 11341426
references.citation: J Vasc Interv Radiol. 2001 Jun;12(6):717-22
references.pmid: 11389223
references.citation: Eur Radiol. 2004 Apr;14(4):607-17
references.pmid: 14663625
references.citation: Radiol Clin North Am. 1993 Mar;31(2):261-78
references.pmid: 8446749
references.citation: Rofo. 1995 Mar;162(3):232-5
references.pmid: 7718779
references.citation: Clin Imaging. 2000 Jan-Feb;24(1):19-27
references.pmid: 11120413