Osteoid osteoma is the third most common type of bone tumour. Radiofrequency ablation and other percutaneous procedures are the treatment of choice. However, in some sites these methods are difficult or dangerous. Our objective of this study was to evaluate whether open resection and intraoperative nidus detection with a handheld gamma probe is an efficient method for treating this type of tumour. Fifty-three patients with osteoid osteomas were submitted to surgical treatment. The first group (gamma group) consisted of 34 patients submitted to open nidus resection guided by a hand-held gamma probe. The control group consisted of 19 patients operated on by conventional technique. In the postoperative period, histopathology, imaging studies, and clinical outcome were evaluated. The gamma group patients were followed up for an average 26.2 months; the control group patients were followed up for an average 38 months. There was no difference with regard to pain relief and histopathology findings between the two groups. However, in the postoperative imaging studies, there was significantly less nidus present in the gamma group (p=0.01).The gamma probe helped to locate the osteoid osteoma nidus more precisely, as demonstrated by the postoperative imaging studies.
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.Résumé Le but de cette étude était d'évaluer si la découverte intra-opératoire du nidus par sonde gamma était assez effective pour l'envisager comme une procé-dure habituelle. Trente-sept malades avec un ostéome ostéoïde ont eu un traitement chirurgical. Le premier groupe a consisté en 19 malades traités par résection du nidus guidée par la sonde manuelle. Le groupe témoin a consisté en 18 malades opérés sur par la technique conventionnelle. Les procédures étaient classées comme efficaces si la résection du nidus pouvait être confirmée par l'histologie ou l'étude postopératoire des images. Les malades dans le groupe gamma ont été suivis avec une moyenne de 13 mois, malades dans le groupe témoin avec une moyenne de 39 mois. Dans le groupe Gamma 17/19 procédures étaient éfficaces, dans le groupe témoin seulement 12/18 l'étaient. La sonde gamma aide à localiser le nidus de l'ostéome ostéoïde et la même sonde pourraient être utilisée dans les plusieurs hôpitaux.
ObjectivesEvaluate the functional grade of these patients and to identify the types of complications found that influenced the average life span of endoprostheses the functions of the operated limb.MethodsWe analyzed 14 post-operative cases of endoprosthesis, patients with malignant bone tumors and aggressive benign bone tumors submitted to surgery between 2004 and 2014. The evaluation system used was proposed by Enneking, recommended by the Musculoskeletal Tumor Society (MSTS), in addition to the radiologic evaluation.ResultsEndoprosthesis are excellent choices for the treatment of bone tumors with limb preservation in relation to pain, strength, and patient's emotional acceptance. Another factor for good results is the immediate weight-bearing capacity, generating a greater independence.ConclusionThe authors conclude that all patients classified the therapy as excellent/good, regardless of the type of prosthesis used, extent of injury, and/or type of tumor resection performed.
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