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Intraoperative localization of an osteoid-osteoma using a gamma probe
M Etchebehere1, E C S C Etchebehere, L A Reganin
1Department of Orthopedics and Traumatology, School of Medical Sciences, Campinas State University (UNICAMP), Av. Vital Brasil, 251-Cidade Universitaria Zeferino Vaz, Campinas, CEP 13083-970, SP, Brazil. maue@unicamp.br
Abstract:
The purpose of this study was to evaluate whether intraoperative nidus detection with a hand-held gamma probe was efficient enough for use as a routine procedure. Thirty-seven patients with osteoid-osteomas were submitted to surgical treatment. The first group consisted of 19 patients submitted to open nidus resection using a hand-held gamma probe as guide. The control group consisted of 18 patients operated on by conventional technique. The procedures were classified as successful if nidus resection could be confirmed by histology or postoperative imaging studies. Patients in the gamma group were followed for a mean of 13 months; patients in the control group for a mean of 39 months. In the gamma group, 17/19 procedures were successful; in the control group, only 12/18 procedures were successful. The gamma probe helped to locate the osteoid-osteoma nidus, and the same probe could be used in various hospitals.
Insights
Intraoperative gamma probe use for osteoid-osteoma surgery significantly improved success rates compared to conventional methods. This technique offers efficient nidus detection and is suitable for routine surgical procedures.
Area of Science:
- Surgical Oncology
- Medical Physics
Background:
- Osteoid-osteoma is a benign bone tumor requiring surgical resection.
- Accurate localization of the nidus is crucial for successful treatment.
- Conventional techniques can be time-consuming and may lack precision.
Purpose of the Study:
- To assess the efficacy of intraoperative nidus detection using a hand-held gamma probe for osteoid-osteoma surgery.
- To determine if gamma probe-guided resection is a viable routine procedure.
Main Methods:
- A prospective study involving 37 patients with osteoid-osteomas.
- Group 1 (19 patients): Open nidus resection guided by a hand-held gamma probe.
- Group 2 (18 patients): Conventional surgical technique (control group).
- Success defined by histological confirmation or postoperative imaging.
Main Results:
- The gamma probe group achieved a success rate of 17/19 (89.5%).
- The control group had a success rate of 12/18 (66.7%).
- Mean follow-up: 13 months (gamma group) vs. 39 months (control group).
Conclusions:
- Intraoperative gamma probe detection is an efficient method for guiding osteoid-osteoma nidus resection.
- The gamma probe technique demonstrates higher success rates than conventional surgery.
- The hand-held gamma probe is a versatile tool applicable in various hospital settings.
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