EDUARDO ANGELI MALAVOLTA
Projetos de Pesquisa
Unidades Organizacionais
Instituto de Ortopedia e Traumatologia, Hospital das Clínicas, Faculdade de Medicina
5 resultados
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- PUBLICATION RATES OF PAPERS PRESENTED AT THE BRAZILIAN ORTHOPEDIC MEETING(2013) EJNISMAN, Leandro; GOMES, Guilherme Seva; OLIVEIRA, Rafael Garcia de; MALAVOLTA, Eduardo Angeli; GOBBI, Riccardo Gomes; CAMARGO, Olavo Pires deObjective: To quantify the publication rates of the papers presented at the 2007 Brazilian Orthopedics Meeting (Congresso Brasileiro de Ortopedia - CBOT). Methods: Evaluation of the proportion of abstracts submitted by the various orthopedic subspecialties and according to the Brazilian states. Then, a Lilacs and PubMed search was performed in order to determine which presentations generated national or international published papers. Results: Sao Paulo and the Southeast region were responsible for the greatest number of presentations at the congress (54.1% and 68.3% respectively). Shoulder and Elbow were the subspecialty responsible for more presentations (13.8%). Among the 653 studies presented at the congress, 174 (26.6%) were published. Oral presentations obtained a publication rate 3.58 times higher than posters. Conclusion: The CBOT publication rate is lower than 30%. Many of the papers presented at the CBOT does not pass the scrutiny of scientific journals and therefore should not be the only source of scientific update of the participants: Descriptive Epidemiologic.
- Osteoid osteoma of the glenoid: Arthroscopic treatment(2015) MALAVOLTA, E. A.; ASSUNCAO, J. H.; REBOLLEDO, D. C. S.; GRACITELLI, M. E. C.; CORREIA, L. F. M.; FERREIRA NETO, A. A.; CAMARGO, O. P. deOsteoid osteoma is a benign tumor that is rarely found in the scapula. We report a clinical case involving a 36-year-old female patient who suffered from progressive pain in her right shoulder for 1 year. This patient was initially diagnosed with impingement syndrome and was treated unsuccessfully with medication and physical therapy for approximately 2 months. Based on imaging exams, a juxta-articular osteoid osteoma of the glenoid was identified. The patient underwent a shoulder arthroscopy that included tumor removal and treatment of the resulting chondral lesion. At 6-, 12- and 36-month assessments, the patient was asymptomatic, with a normal range of motion and experienced a pain intensity corresponding to 0 points on the Visual Analog Scale (VAS) and 35 points on the University of California, Los Angeles (UCLA) Scale. A postoperative MRI indicated the absence of any residual tumor tissue or inflammatory signs. We believe that the approach described in this paper allows juxta-articular osteoid osteomas to be accessed in a minimally invasive manner and permits not only adequate resection but also the treatment of chondral lesions that could remain after tumor resection.
- Platelet-Rich Plasma in Rotator Cuff Repair A Prospective Randomized Study(2014) MALAVOLTA, Eduardo Angeli; GRACITELLI, Mauro Emilio Conforto; FERREIRA NETO, Arnaldo Amado; ASSUNCAO, Jorge Henrique; BORDALO-RODRIGUES, Marcelo; CAMARGO, Olavo Pires deBackground: Although platelet-rich plasma (PRP) has been used in rotator cuff repair, most authors have been unable to report the advantages of this method in clinical trials. Hypothesis: The use of PRP promotes better functional and structural results in arthroscopic rotator cuff repair. Study Design: Randomized controlled trial; Level of evidence, 1. Methods: This was a prospective, randomized, double-blind study with 2 groups of 27 patients each (PRP group and control group). Complete supraspinatus tears with retraction of less than 3 cm were subjected to arthroscopic single-row repair; at the end of the surgical procedure, liquid PRP prepared by apheresis was given to the patients in the PRP group with autologous thrombin. The outcomes were assessed by the University of California at Los Angeles (UCLA) and Constant scales, visual analog scale (VAS) for pain, and magnetic resonance imaging (MRI) before and 3, 6, 12, and 24 months after surgery. The significance level was 5%. Results: The 2 groups of patients exhibited significant clinical improvement (P < .001). Between the preoperative assessment and 24-month follow-up, the mean UCLA score increased from 13.63 3.639 to 32.70 +/- 3.635 and from 13.93 +/- 4.649 to 32.44 +/- 4.318 in the control and PRP groups, respectively (P = .916). The mean Constant score increased from 47.37 +/- 11.088 to 85.15 +/- 9.879 in the control group and from 46.96 +/- 11.937 to 84.78 +/- 14.048 in the PRP group (P = .498). The mean VAS score varied from 7.00 +/- 1.939 and 6.67 +/- 1.617 before surgery to 1.15 +/- 1.916 and 0.96 +/- 2.244 at the 24-month assessment in the control and PRP groups, respectively (P = .418). The only difference was in the mean UCLA score at 12 months, with 30.04 +/- 4.528 in the control group and 32.30 +/- 3.506 in the PRP group (P = .046). The control group exhibited 1 case of a complete retear and 4 partial retears, and the PRP group exhibited 2 cases of partial retears (P = .42). Conclusion: Platelet-rich plasma prepared by apheresis and applied in the liquid state with thrombin did not promote better clinical results at 24-month follow-up. Given the numbers available for analysis, the retear rate also did not change.
- Plasma rico em plaquetas no reparo artroscópico das roturas completas do manguito rotador(2012) MALAVOLTA, Eduardo Angeli; GRACITELLI, Mauro Emilio Conforto; SUNADA, Edwin Eiji; BENEGAS, Eduardo; PRADA, Flavia de Santis; BOLLIGER NETO, Raul; RODRIGUES, Marcelo Bordalo; FERREIRA NETO, Arnaldo Amado; CAMARGO, Olavo Pires deOBJECTIVE: To evaluate shoulder functional results and the re tear rate of arthroscopic repair of the rotator cuff augmented with platelet-rich plasma (PRP). METHODS: Prospective case series with single-row arthroscopic repair of the rotator cuff augmented with PRP. Only cases of isolated supraspinatus tears with retraction of less than 3 cm were included in this series. The PRP used was obtained by apheresis. It was applied on liquid consistency in its activated form, with the addition of autologous thrombin. Patients were evaluated after 12 months of the surgical procedure. The Constant-Murley, UCLA and VAS scales were used, and the retear rate was assessed using magnetic resonance imaging (MRI). RESULTS: Fourteen patients were evaluated (14 shoulders). The mean Constant-Murley score was 45.64 ± 12.29 before the operation and evolved to 80.78 ± 13.22 after the operation (p < 0.001). The UCLA score increased from 13.78 ± 5.66 to 31.43 ± 3.9 (p < 0.001). The patients' pain level decreased from a median of 7.5 (p25% = 6, p75% = 8) to 0.5 (p25% = 0, p75% = 3) (p = 0.0013) according to the VAS score. None of the patients presented complete retear. Three patients (21.4%) showed partial retear, without transfixation. Only one patient developed complica tions (adhesive capsulitis). CONCLUSION: Patients submitted to arthroscopic rotator cuff repair augmented with PRP showed significant functional improvement and none of them had com plete retearing.
- Clinical and Structural Evaluations of Rotator Cuff Repair With and Without Added Platelet-Rich Plasma at 5-Year Follow-up: A Prospective Randomized Study(2018) MALAVOLTA, Eduardo Angeli; GRACITELLI, Mauro Emilio Conforto; ASSUNCAO, Jorge Henrique; FERREIRA NETO, Arnaldo Amado; BORDALO-RODRIGUES, Marcelo; CAMARGO, Olavo Pires deBackground: Platelet-rich plasma (PRP) has been studied with the objective of reducing the retear rate and improving functional outcomes after rotator cuff repair. Only one study to date has reported its midterm effect. Hypothesis: PRP promotes better functional and structural results in arthroscopic rotator cuff repair. Study Design: Randomized controlled trial; Level of evidence, 2. Methods: All patients underwent arthroscopic single-row repair of small to medium supraspinatus tears. At the end of the surgical procedure, liquid PRP prepared by apheresis with autologous thrombin was applied in the tendon-to-bone interface in the PRP group. The outcomes were assessed by the University of California, Los Angeles (UCLA) and Constant scales and the visual analog scale (VAS) for pain at 6, 12, 24, and 60 months after surgery and magnetic resonance imaging at 12 and 60 months. Results: Of 54 patients initially randomized, we analyzed the clinical outcomes in 51 (25 control, 26 PRP) and the structural outcomes in 44 (22 each group). At 60-month follow-up, the mean UCLA scores were 32.5 +/- 3.8 and 32.1 +/- 4.6 in the control and PRP groups, respectively (P = .992). The mean Constant scores were 82.0 +/- 9.5 in the control group and 82.1 +/- 11.0 in the PRP group (P = .699). The mean VAS scores were 1.4 +/- 1.8 and 1.5 +/- 2.1 in the control and PRP groups, respectively (P = .910). None of the clinical assessments at 6, 12, and 24 months in either group produced statistically significant differences, and both groups showed significant improvements throughout the follow-up time in the 3 evaluations (P < .001). The control group exhibited 1 full-thickness retear (Sugaya type IV) and 11 partial-thickness retears (Sugaya type III), while the PRP group had 7 partial-thickness retears (Sugaya type III). The overall number of retears did not differ between groups (P = .203). Conclusion: PRP obtained by apheresis and applied in liquid form with the addition of thrombin at the end of single-row repair of supraspinatus tears did not promote better clinical or structural results at 60-month follow-up. Registration: NCT01029574 ( ClinicalTrials. gov identifier)