LEANDRO EJNISMAN
Projetos de Pesquisa
Unidades Organizacionais
Instituto de Ortopedia e Traumatologia, Hospital das Clínicas, Faculdade de Medicina - Médico
LIM/41 - Laboratório de Investigação Médica do Sistema Músculoesquelético, Hospital das Clínicas, Faculdade de Medicina
LIM/41 - Laboratório de Investigação Médica do Sistema Músculoesquelético, Hospital das Clínicas, Faculdade de Medicina
9 resultados
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- Use of closed suction drainage after primary total hip arthroplasty: a prospective randomized controlled trial(2018) FAGOTTI, Lorenzo; EJNISMAN, Leandro; MIYAHARA, Helder de Souza; GURGEL, Henrique de Melo Campos; CROCI, Alberto Tesconi; VICENTE, Jose Ricardo NegreirosABSTRACT Objective: This study aimed to investigate drain use in a controlled population of patients with hip osteoarthritis undergoing primary total hip arthroplasty. Methods: This prospective controlled trial evaluated 93 patients randomized into two groups: a group that received drains and a group that did not. The patients who were randomized to the drain group used a 3.2 mm drain placed under the fascia that was kept in place for 24 h. Postoperative evaluations were performed after 24 h and then three, six, and 12 weeks after total hip arthroplasty. The primary outcome was perioperative blood loss in both groups 24 h after total hip arthroplasty. The other parameters that were evaluated included mid-thigh circumference, the rate of blood transfusion, hematocrit, inflammatory serum levels, and the Harris Hip Score. Results: The clinical and laboratory data revealed no differences between the study groups with respect to blood loss and need for blood transfusion, duration of hospital stay, reoperation rate, complications, inflammatory serum markers, and the Harris Hip Score. Patients without closed suction drainage reported higher pain levels after 24 h (VAS score 1 vs. 2, p < 0.01). Conclusion: Similar clinical and laboratory outcomes were found in both cohorts.
- Proposal for a new clinical test for diagnosing lateral hip snapping,(2014) CABRITAA AMORIM, Henrique Antonio Berwanger de; GURGELA, Henrique Melo de Campos; MARQUES, Ricardo; SANTOS, Leandro Emilio Nascimento; VICENTEA, José Ricardo Negreiros; LEONHARDTA, Marcos de Camargo; EJNISMANA, Leandro; CROCI, Alberto TesconiLateral hip snapping is a nosological entity that is often unknown to many orthopedists and even to some hip surgery specialists. It comprises palpable and/or audible snapping on the lateral face of the hip that is sometimes painful, caused by muscle-tendon friction on the greater trochanter during flexion and extension of the coxofemoral joint. In the following, we describe a new test for diagnosing lateral hip snapping, which is eminently clinical.
- What is the role of core decompression in the early stages of osteonecrosis of the femoral head? Evaluation of the surgical result by functional score and radiological follow-up(2018) MIYAHARA, Helder de Souza; ROSA, Bruno Berbert; HIRATA, Fabio Yuiti; GURGEL, Henrique de Melo Campos; EJNISMAN, Leandro; VICENTE, José Ricardo NegreirosABSTRACT Objectives: This study is aimed at evaluating whether core decompression of the femoral head in the early stages of femoral head osteonecrosis improves patients' subjective perception of pain and avoids the progression of the disease to a femoral head collapse and a final indication of total hip arthroplasty. Methods: Eighteen patients (30 hips) in the early stages of the disease (Ficat and Arlet 1 and 2A) were evaluated through clinical, radiological, risk factor maintenance, and by the functional Merle D'Aubigné, and Postel score before and after core decompression of the femoral head. Results: There was an improvement of symptoms up to the sixth month in 83.3% of the hips evaluated through the Merle D'Aubigné and Postel score. However, 73.3% of the cases evolved with femoral head collapse, and in 50%, total hip arthroplasty was indicated regardless of whether or not the risk factors were maintained. Conclusions: Core decompression of the femoral head improves patients' pain early in the initial stages of the pathology. However, it does not alter the prognosis and the ultimate indication of total hip arthroplasty in the final stages of the disease.
- A modified iliofemoral approach to intrapelvic acetabular revision - technical note(2018) VICENTE, José Ricardo Negreiros; MIYAHARA, Helder de Souza; EJNISMAN, Leandro; SOUZA, Bruno de Biase; GURGEL, Henrique Melo; CROCI, Alberto TesconiABSTRACT Among the patterns of acetabular osteolysis associated with acetabular loosening, the authors emphasize the severity of pelvic dissociation and medial segmental losses in which the quadrilateral lamina is severely affected. Such lesions are potentially lethal in cases of large vascular injury. This note aimed to describe a modified iliofemoral approach in cases of massive intrapelvic migration of the acetabular component in patients with total proximity of the iliac vascular bundle and absence of an anatomical demarcation plane between the migrated contents and the iliac bundle. This approach was performed in 12 of 21 patients who had these criteria.
- Necrose avascular da cabeça femoral em pacientes HIV positivos: resultados iniciais do tratamento cirúrgico por substituição articular cerâmica-cerâmica(2012) CABRITA, Henrique Amorim; SANTOS, Alexandre Leme de Godoy; GOBBI, Riccardo Gomes; LIMA, Ana Lúcia Munhoz; OLIVEIRA, Priscila Rosalba; EJNISMAN, Leandro; GURGEL, Henrique Melo Campos; UIP, David; CAMANHO, Gilberto LuisOBJECTIVES: To evaluate the initial functional results and early complication rate of ceramic-ceramic total hip replacements among patients living with HIV who presented osteonecrosis of the femoral head. METHOD: Twelve HIV-positive patients with a diagnosis of osteonecrosis of the incongruent femoral head were evaluated using clinical and laboratory criteria and the WOMAC functional scale before and after treatment with joint replacement. RESULTS: We observed that 83.3% of the subjects were taking protease inhibitors, 75% had dyslipidemia and 66.6% had lipodystrophy syndrome. The improvement over the evolution of the WOMAC score was statistically significant at six and twelve months after the operation, in comparison with the preoperative score. We did not observe complications secondary to this procedure. CONCLUSION: Total hip arthroplasty with a ceramic-ceramic implant for treating avascular necrosis of the hip is an appropriate surgical option for this portion of the population. It provides a significant initial functional improvement and a low early complication rate.
- Clinical and radiographic outcomes of hip resurfacing arthroplasty after eight years - a retrospective study(2018) BESSA, Felipe Spinelli; FUENTES, Ronald Delgadillo; MIYAHARA, Helder de Souza; CROCI, Alberto Tesconi; EJNISMAN, Leandro; VICENTE, José Ricardo NegreirosABSTRACT Objective: To assess the clinical and radiographic outcomes of hip resurfacing arthroplasty for the treatment of hip osteoarthritis. Methods: This study retrospectively assessed 30 patients with hip osteoarthritis who underwent hip resurfacing arthroplasty between 2005 and 2014. Patients of both genders suffering from advanced primary and secondary hip osteoarthritis were included in the study. Data were collected about postoperative complications and the need for revision of the arthroplasty. Antero-posterior pelvis and lateral hip x-rays were performed in order to classify osteolysis according to the Amstutz criteria; the Lequèsne index of severity for osteoarthritis of the hip and the UCLA activity level questionnaires were answered pre- and postoperatively. Results: After a mean follow-up of eight years, a statistically significant improvement was observed between the mean of the outcomes of both scores, when compared pre- and postoperatively (p < 0.001). Nevertheless, there was a high incidence of arthroplasty revision (20%), related to the size of the femoral stem and errors in surgical technique. Conclusion: Using the appropriate technique, hip resurfacing arthroplasty can present good results in well-selected patients.
- A comparison study of radiographic and computerized tomographic angles in slipped capital femoral epiphysis(2017) DATTI, Ibere Pereira; MASSA, Bruno Sérgio Ferreira; EJNISMAN, Leandro; MONTENEGRO, Nei Botter; GUARNIERO, Roberto; KOJIMA, Kodi EdsonABSTRACT Objective: To compare proximal femur radiologic angles in patients with slipped capital femoral epiphysis and to analyze whether computerized tomography may modify the treatment. Methods: Cross-sectional study comparing and analyzing the similarity between angles and radiologic classification of interest in slipped capital femoral epiphysis (SCFE) . Results: It was observed that the therapeutic management in slipped capital femoral epiphysis might be modified depending on the classification and radiologic acquisition method adopted. Conclusion: Multiplanar assessment of proximal femoral deformity in patients with slipped capital femoral epiphysis is a viable option, with the potential to modify the disease classification and, consequently, the therapeutic management.
- Reproducibility of Digital Planning in Cementless Total Hip Arthroplasty Among Experienced and Novice Surgeons(2023) FABRICIO, Marcelo Zerbetto; RUDELLI, Bruno Alves; MIYAHARA, Helder de Souza; EJNISMAN, Leandro; GURGEL, Henrique de Melo Campos; CROCI, Alberto TesconiAbstract Objective The present study aims to assess the reproducibility of digital planning for cementless total hip arthroplasty (THA) among surgeons with different levels of experience. In addition, it attempts to determine the degree of planning reliability based on a contralateral THA or on a spherical marker positioned at the greater trochanter for calibration. Methods Two evaluators with different experience levels (A1 and A2) performed independently the retrospective digital surgical planning of 64 cementless THAs. Next, we compared the planning with the implants used in the surgery. The reproducibility was excellent when planning and implants were identical; proper in case of a single-unit variation; and inappropriate if there was variation in two or more units. The present analysis also determined the calibration accuracy between the contralateral THA and the spherical marker at the greater trochanter level. Results The present study demonstrated greater success when the most experienced evaluator performed the planning and greater accuracy for the contralateral THA. When splitting the analysis per parameter (contralateral THA or spherical marker), there was a statistical difference only for the planning of A1 and the implants used in the surgery. This difference occurred in the excellent category, with 67.3% for contralateral THA compared with 30.6% for a spherical marker (p < 0.001), and in the inappropriate category, with 7.1% for contralateral THA compared with 30.6% for a spherical marker (p < 0.001). Conclusions Digital planning is more accurate when performed by an experienced evaluator. The contralateral prosthesis head was a better reference than a marker on the greater trochanter.
- Mentorship in Medical Residency in Orthopedics: Evaluation of a Program by Mentors and Mentees(2022) MENDES JÚNIOR, Adriano Fernando; PEREIRA, Gabriel Meireles Azevedo; BUSSIUS, Daniel Teixeira; ORTIZ, Rafael Trevisan; EJNISMAN, LeandroAbstract Objective To demonstrate the degree of recommendation of mentors and mentees regarding a mentorship program, to assess the degree of satisfaction of the participants, and to describes the main characteristics of the meetings in pairs. Materials and Methods A primary, retrospective, analytical study based on answers to the annual evaluation questionnaires of the institutional mentorship program in pairs of the Orthopedics and Traumatology residency from December 2017 to February 2021. Results We compiled 52 responses from 26 mentorship preceptors and 26 mentored residents. The mentees and mentors had average ages of 27 (±1.5) years and 45 (±8.2) years respectively. A total of 96% of the participants recommend the program, and 89% of the mentees reported that the mentors contributed to their personal and professional decision-making process. Conclusion The mentorship program proved to be a highly recommended strategy in medical residency in Orthopedics. Data show that mentors contributed to the mentees' personal and professional decision-making process.