Monitoring during cryosurgery of bone tumors

✍ Scribed by Schreuder, H. W. Bart; van Egmond, Jan; van Beem, Herman B. H.; Veth, René P. H.

• Book ID: 101218826
• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 304 KB
• Volume: 65
• Category: Article
• ISSN: 0022-4790
• DOI: 10.1002/(sici)1096-9098(199705)65:1<40::aid-jso8>3.0.co;2-o

✦ Synopsis

Background: Cryosurgery is used in orthopaedic oncology as adjuvant treatment after intralesional excision of bone tumors to induce cell death at and beyond the surgical margin. Monitoring freeze/thaw cycles during cryosurgery is beneficial in controlling a cryosurgical procedure and in preventing an unwarranted local extent of the freeze. Method: We conducted a study of 15 cryosurgical procedures with the use of a protocolized temperature measuring system with peroperative graphic visualization. Results: Using a liquid nitrogen spray, intralesional temperatures of -150°C were achieved, which are, according to the literature, associated with cell death. Extralesional temperature measurements showed no subzero temperatures of surrounding important tissues. Conclusions: Temperature recordings in and outside the lesion during cryosurgery in orthopaedic oncology are of importance to monitor the freeze/thaw cycles and are helpful in facilitating an effective cryosurgical procedure and in controlling the extent of the freeze, avoiding local complications.