Publications by authors named "Ramiro Zilles Goncalves"
To evaluate the interobserver agreement of a radiologist, two hip specialist orthopedists with experience in the treatment of pelvic and acetabulum fractures, two general orthopedists, two orthopedics residents and two radiology residents regarding the diagnosis of posterior pelvic ring injuries using plain radiography. A cross-sectional study conducted in September 2017. The exams of 20 patients who had been treated for traumatic lesions of the posterior pelvic ring were randomly selected.
View Article and Find Full Text PDFObjective: To investigate the effect of total hip arthroplasty (THA) on body mass index (BMI), from before to after the operation.
Methods: 100 patients who underwent THA were retrospectively analyzed. They were stratified according to BMI, as proposed by the World Health Organization (WHO).
Unlabelled: Objectives. To study the correlation between avascular necrosis and the demographics, time elapsed from fracture to surgery, quality of reduction, Garden classification, and the position of the screw following use of the dynamic hip screw (DHS) in the treatment of subcapital neck fractures. Methods.
View Article and Find Full Text PDFObjective: this was an epidemiological study on trochanteric bursitis at the time of performing total hip arthroplasty.
Methods: sixty-two sequential patients who underwent total hip arthroplasty due to osteoarthrosis, without any previous history of trochanteric bursitis, were evaluated. The bursas were collected and evaluated histologically.
Objective: to determine whether the laboratory hematic curve must be the single predictor of postoperative blood transfusion in total hip arthroplasty.
Methods: the laboratory blood samples of 78 consecutive patients undergoing total hip arthroplasty was analyzed during five distinct moments: one preoperative and four postoperative. There was a count of hemoglobin, hematocrit and platelets of the patients samples.
Objective: This paper performs a dimensional analysis of different total hip arthroplasty polyethylenes, cemented and non-cemented, Brazilian made and imported.
Methods: It was considered acetabular components with 50 mm for the 28 mm femoral heads. Dimensional analysis was performed on a 3D coordinate Carl-Zeiss robotic device.
Objective: To evaluate the mortality rate after one year and correlated preoperative factors, among patients with hip fractures.
Methods: We prospectively studied 202 out of a total of 376 patients with a diagnosis of hip fracture who were admitted to the Hospital Cristo Redentor, between October 2007 and March 2009. The database with the epidemiological analysis was set up during their hospitalization, and follow-up data were obtained preferentially by phone.
Total hip arthroplasty is being increasingly indicated for younger and more active patients, in addition to a naturally growing demand for the procedure because of increasing life expectancy among patients. The high costs of this surgery and the controversies regarding implant performance have made this topic the subject of constant research, seeking new materials with better resistance to wear and better biocompatibility. The present article provides a review of new surfaces in total hip arthroplasty.
View Article and Find Full Text PDFObjective: The objective of this paper is to measure the volume occupied by the most widely used internal fixation devices for treating femoral neck fractures, using the first 30, 40 and 50 mm of insertion of each screw as an approximation. The study aimed to observe which of these implants caused least bone aggression.
Methods: Five types of cannulated screws and four types of dynamic hip screws (DHS) available on the Brazilian market were evaluated in terms of volume differences through water displacement.