Publications by authors named "Marcelo Petrilli"
Objective: To present the epidemiological profile of bone and soft tissue tumors that affect the elbow region treated at an oncology referral center in Brazil.
Methods: Retrospective observational case series study to evaluate the results of elbow cancer undergoing clinical and/or surgical treatment with the first visit from 1990 to 2020. The dependent variables were benign bone tumor, malignant bone tumor, benign soft tissue tumor, malignant soft tissue tumor.
Objective: Characterizing ankle tumors, presenting the epidemiological profile of these lesions.
Methods: Retrospective observational case series study to evaluate the results of clinical and/or surgical treatments of patients with ankle tumors whose first visit occurred from 1990 to 2020. The dependent variables were: benign bone tumor, malignant bone tumor, benign soft tissue tumor, malignant soft tissue tumor, and infection.
Objective: Evaluate risk factors related to clinical evolution and dedifferentiation of parosteal (juxtacortical) osteosarcoma to high-grade osteosarcoma.
Methods: Retrospective cohort study performed over a period of 25 years, using data from medical records of patients diagnosed with parosteal osteosarcoma. The data were submitted to statistical analysis by Fisher's exact test and Student's t-test.
To identify the main risk factors related to poor outcomes after the treatment for periprosthetic infection. Medical records from 109 patients who underwent non-conventional endoprosthesis surgeries (primary and revision procedures) from January 1, 2007, to December 31, 2018, were retrospectively evaluated. In total, 15 patients diagnosed with periprosthetic infection were eligible to participate in the study.
View Article and Find Full Text PDFBiopsy Path Contamination in Primary Bone Sarcomas.
Rev Bras Ortop (Sao Paulo)
February 2019
Objective: To determine the incidence of contamination of the biopsy pathway in patients with primary bone sarcomas, as well as the clinical characteristics that influenced this outcome.
Materials And Methods: The anatomopathological reports of the patients who were treated by the Orthopedic Oncology Sector of the Orthopedic and Traumatology Department of this institution were retrospectively evaluated.
Results: Of the 148 patients included for evaluation in the present study, only 1 presented contamination by neoplastic cells in his biopsy pathway.
Objective: Describe the epidemiological profile of patients with primary or secondary neoplastic lesions in the pelvis who required a surgical procedure such as hemipelvectomy.
Methods: This study retrospectively evaluated 69 patients located in the database of a São Paulo educational institution, subject to surgical hemipelvectomy treatment between January 1990 and December 2013. All patients had previous diagnosis of bone tumor (primary or metastatic) in the pelvis (ilium, ischium, pubis, and/or sacrum).
Objective: To report the results of computed tomography (CT)-guided percutaneous resection of the nidus in 18 cases of osteoid osteoma.
Materials And Methods: The medical records of 18 cases of osteoid osteoma in children, adolescents and young adults, who underwent CT-guided removal of the nidus between November, 2004 and March, 2009 were reviewed retrospectively for demographic data, lesion site, clinical outcome and complications after procedure.
Results: Clinical follow-up was available for all cases at a median of 29 months (range 6-60 months).
Objective: To investigate the correlation between the sagittal and frontal alignment and possible postural asymmetries found in patients submitted to total knee stent placement for osteosarcoma.
Methods: TWENTY TWO INDIVIDUALS WERE DIVIDED INTO TWO GROUPS ACCORDING TO TUMOR LOCATION: femur group (13 patients) and tibia group (nine patients), who were evaluated through postural analysis software (SAPO).
Results: No statistically significant difference was found between groups, supporting previous result showing that both groups present the same postural asymmetries.
Objective: to evaluate the results from surgery with computer-assisted navigation in cases of total knee arthroplasty.
Method: a total of 196 patients who underwent total knee arthroplasty with computer-assisted navigation were evaluated. The extension and flexion spaces (gaps) were evaluated during the operation and the alignment after the operation was assessed.
Fifteen Years' Experience of the Brazilian Osteosarcoma Treatment Group (BOTG): A Contribution from an Emerging Country.
J Adolesc Young Adult Oncol
December 2013
Purpose: Little information is available regarding the tumor features, prognostic factors, and treatment results in children and adolescents and young adults (AYAs) with osteosarcoma diagnosed in developing countries. We reviewed the results of three observational cohorts of osteosarcoma patients treated in an emerging country.
Methods: A total of 604 patients below the age of 30 years with high-grade osteosarcoma were prospectively enrolled in the Brazilian Osteosarcoma Treatment Group (BOTG) studies III, IV, and V.
Objective: To analyze the reproducibility of the "American Knee Society Score" (AKSS) scale, and determine its measurement, in order to make it useful for the evaluation of patients with osteoarthritis or who have undergone total knee arthroplasty.
Methods: In the first interview, the AKSS was applied along with the SF-36 and WOMAC (examiner 1). After thirty minutes the same patients answered only the AKSS.