EDUARDO ANGELI MALAVOLTA
Projetos de Pesquisa
Unidades Organizacionais
Instituto de Ortopedia e Traumatologia, Hospital das Clínicas, Faculdade de Medicina
9 resultados
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- Does a subscapularis tear combined with a posterosuperior rotator cuff tear affect postoperative functional outcomes?(2020) MALAVOLTA, Eduardo Angeli; CHANG, Veronica Yulin Prieto; MONTECHI, Joao Marcos Nunes; ASSUNCAO, Jorge Henrique; GRACITELLI, Mauro Emilio Conforto; ANDRADE-SILVA, Fernando Brandao; FERREIRA NETO, Arnaldo AmadoBackground: The subscapularis is biomechanically important for the shoulder. However, few studies have clinically assessed its importance using a comparative design. Our objective was to compare the functional outcomes in patients who underwent isolated repair of posterosuperior rotator cuff tears and those with repair of combined tears involving the subscapularis. Methods: We performed a retrospective cohort study evaluating patients who underwent arthroscopic full-thickness rotator cuff repair between January 2013 and May 2017. The patients were divided into 2 groups: isolated repair of posterosuperior tears and repair of combined tears involving the subscapularis. The primary outcome was to evaluate the American Shoulder and Elbow Surgeons (ASES) and University of California, Los Angeles (UCLA) scales at 24 months' follow-up. Result: A total of 326 patients were evaluated: 194 with isolated posterosuperior repairs and 132 with combined subscapularis repairs. Both groups showed significant improvement with the procedure (P <.001). The ASES score at 24 months showed no significant difference (P = .426) between the group without subscapularis repair (median, 90.0; interquartile range [IQR], 24.8) and the group with subscapularis repair (median, 86.3; IQR, 33.2). Similarly, the UCLA score showed no difference between the groups (median, 33.0 [IQR, 6.0] and 32.5 [IQR, 8.8], respectively; P =.190). The preoperative functional evaluation also showed no significant differences between the groups. Conclusion: The functional results did not differ between patients who underwent isolated repair of posterosuperior tears and those with repair of combined tears involving the subscapularis, according to the ASES and UCLA scales at 24 months.
- Locking intramedullary nails compared with locking plates for two- and three-part proximal humeral surgical neck fractures: a randomized controlled trial(2016) GRACITELLI, Mauro E. C.; MALAVOLTA, Eduardo A.; ASSUNCAO, Jorge H.; KOJIMA, Kodi E.; REIS, Paulo R. dos; SILVA, Jorge S.; FERREIRA NETO, Arnaldo A.; HERNANDEZ, Arnaldo J.Background: Previous studies have shown good clinical results in patients with proximal humeral fractures (PHFs) treated with locking intramedullary nails or locking plates. Our study compared the clinical and radiographic outcomes in patients with 2- and 3-part surgical neck fractures. Methods: In this prospective, randomized controlled trial, 72 patients with 2- or 3-part surgical neck PHFs were randomly assigned to receive fixation with locking intramedullary nails (nail group) or locking plates (plate group). The primary outcome was the 12-month Constant-Murley score. The secondary outcomes included the Disabilities of the Arm, Shoulder and Hand score, the visual analog scale pain score, the shoulder passive range of motion, the neck-shaft angle, and complication rates. Results: There was no significant mean treatment group difference in the Constant-Murley score at 12 months (70.3 points for the nail group vs. 71.5 points for the plate group; P=.750) or at individual follow-up assessments. There were no differences in the 3-, 6- and 12-month Disabilities of the Arm, Shoulder and Hand scores, visual analog scale scores, and range of motion, except for the medial rotation at 6 months. The neck-shaft angle was equivalent between the groups at 12 months. There were significant differences over 12 months in total complication rates (P=.002) and reoperation rates (P=.041). There were no significant differences for the rotator cuff tear rate (P=.672). Conclusion: Fixation of PHFs with locking plates or locking intramedullary nails produces similar clinical and radiologic results. Nevertheless, the complication and reoperation rates were higher in the nail group. Level of evidence: Level I; Randomized controlled trial; Treatment study (C) 2016 Journal of Shoulder and Elbow Surgery Board of Trustees.
- Response to letter to the editor concerning ""The rotation of the humeral head does not alter radiographic evaluation of the head-shaft angle""(2016) MALAVOLTA, Eduardo A.; GRACITELLI, Mauro E. C.; ASSUNCAO, Jorge H.; FERREIRA NETO, Arnaldo A.
- Intraobserver and interobserver agreement in the classification and treatment of proximal humeral fractures(2017) GRACITELLI, Mauro E. C.; DOTTA, Thiago A. G.; ASSUNCAO, Jorge H.; MALAVOLTA, Eduardo A.; ANDRADE-SILVA, Fernando B.; KOJIMA, Kodi E.; FERREIRA NETO, Arnaldo A.Background: There is controversy surrounding the reliability of radiographic measurements and existing classifications for proximal humeral fractures. Methods: Ten orthopedists, divided into 2 groups by length of experience, evaluated radiographs in 3 views from 40 proximal humeral fractures. We evaluated 11 radiographic criteria (including the Neer and pathomorphologic classifications, head-shaft angle, displacement of the humeral shaft, and lesser and greater tuberosities) and treatment indication. We also analyzed the criteria that most influenced the choice of treatment. Results: Interobserver reliability was substantial for the presence of fracture of the greater tuberosity (kappa = 0.749) and medial metaphyseal comminution (kappa = 0.627) and moderate for the pathomorphologic classification (kappa = 0.504), displacement of the greater tuberosity (kappa = 0.422), and treatment decision (kappa = 0.565). Intraobserver reliability was substantial for treatment indication (kappa = 0.620) and presence of displacement of the fracture of the greater tuberosity (kappa = 0.627 and 0.611) and moderate for the Neer (kappa = 0.490) and pathomorphologic (kappa = 0.607) classifications. The results were influenced by the observer's experience. The surgical indication was influenced by the pathomorphologic classification in 50% of the evaluators (odds ratio, 4.85; range, 3.30-8.65). Conclusion: The pathomorphologic classification has higher reliability than the Neer classification and was the factor that most influenced the surgical decision. The determination of the presence of fracture and displacement of the greater tuberosity and medial metaphyseal comminution is reliable with the use of simple radiographs, and the results were influenced by the observer's experience. Level of evidence: Basic Science Study; Validation of Classification System (C) 2016 Journal of Shoulder and Elbow Surgery Board of Trustees. All rights reserved.
- Randomized trial for the treatment of post-traumatic elbow stiffness: surgical release vs. rehabilitation(2020) GUGLIELMETTI, Cesar L. B.; GRACITELLI, Mauro E. C.; ASSUNCAO, Jorge H.; ANDRADE-SILVA, Fernando B.; PESSA, Mariana M. Nicolosi; LUZO, Maria Candida; NETO, Arnaldo A. Ferreira; MALAVOLTA, Eduardo A.Background: There are no previous randomized trials comparing surgical to conservative treatment for post-traumatic elbow stiffness. The aim of our study was to compare elbow range of motion (ROM) and clinical outcomes among patients undergoing surgical treatment or a standardized rehabilitation for post-traumatic elbow stiffness. Methods: Randomized clinical trial of patients with post-traumatic elbow stiffness for more than 6 months who failed conventional physical therapy for 4 months. Patients were randomized into 2 treatment groups. The conservative group underwent the rehabilitation protocol associated with the use of orthoses (static progressive for extension and dynamic for flexion) and continuous passive motion. The surgical group underwent surgical release by a posterior approach without triceps detachment, followed by a rehabilitation protocol similar to the conservative group. The primary outcome of the study was flexion-extension ROM at 6 months of follow-up. Secondary outcomes included the visual analog scale for pain, the Mayo Elbow Performance Score, the Disabilities of the Arm, Shoulder, and Hand score, absolute and relative increase in flexion-extension ROM, and complication rates. Results: Thirty patients were analyzed in the study, 15 in each group. The mean elbow flexion-extension ROM at the end of 6 months of follow-up was 108 degrees in the surgical group and 88 degrees in the conservative group (P = .002). The mean absolute and the relative increase of elbow flexion-extension at 6 months were, respectively, 17 degrees and 27% in the conservative group and 41 degrees and 59% in the surgical group (P<.001). Conclusion: Surgical elbow release associated with the rehabilitation protocol resulted in a greater flexion-extension ROM, as well as a greater absolute and relative increase compared with rehabilitation alone at 6 months of follow-up. The groups did not differ regarding clinical scores and complication rates.
- Early versus late repair of rotator cuff tears in rats(2018) CAVINATTO, Leonardo; MALAVOLTA, Eduardo Angeli; PEREIRA, Cesar Augusto Martins; MIRANDA-RODRIGUES, Manuela; SILVA, Luiza Campos Moreira; GOUVEIA, Cecilia Helena; NETTO, Cesar de Cesar; MATTAR, Rames Junior; FEREIRA NETO, Arnaldo AmadoBackground: In the event of a traumatic rotator cuff tear, patients are routinely advised that early surgical intervention produces an optimal repair, despite a lack of direct evidence to support this recommendation. To address this knowledge gap, massive rotator cuff tears in rats were assessed by biomechanical and bone morphometric analyses after early or late repair. Methods: Combined supraspinatus and infraspinatus tendon tears of the left shoulder were created in 21 adult Wistar rats, which were divided into 2 groups. The tendons of the injured shoulder in the animals in group I were surgically repaired 8 weeks after the injury. Under the same anesthesia, the same injury was created on the right shoulder, which was immediately repaired. The rats from group I were euthanized 8 weeks after the repairs. No repair was performed in the rats from group II, which were euthanized 8 weeks after the injury. Tissues from both groups were harvested and biomechanically tested for supraspinatus tendon and bone morphometry analysis of the humeral head. Results: All biomechanical properties were significantly increased in the early repair group compared with the late repair group. No significant differences were observed in bone morphometry of the humeral head when early and late repair groups were compared. Conclusion: Early surgical repair of a massive rotator cuff tear leads to improved biomechanical properties of the tissue after healing. Proximal humerus bone morphometry was unaffected by surgical repair timing.
- Shoulder function after surgical treatment of displaced fractures of the humeral shaft: a randomized trial comparing antegrade intramedullary nailing with minimally invasive plate osteosynthesis(2014) BENEGAS, Eduardo; FERREIRA NETO, Arnaldo Amado; GRACITELLI, Mauro Emilio Conforto; MALAVOLTA, Eduardo Angeli; ASSUNCAO, Jorge Henrique; PRADA, Flavia De Santis; BOLLIGER NETO, Raul; MATTAR JR., RamesBackground: Minimally invasive plate osteosynthesis for humeral shaft fractures has been described recently, but there are no randomized studies comparing the clinical results for shoulder function between this technique and locking intramedullary nailing. Methods: A prospective randomized study was performed. Forty-one humeral shaft fractures (40 patients) were randomized to be treated with a minimally invasive plate (n = 21) or a locking intramedullary nail (n = 19). Clinical and radiographic outcome assessments were conducted at 1 year postoperatively. Shoulder function was the primary outcome, as measured by the University of California, Los Angeles Shoulder Scale. Elbow function was measured by the Broberg-Morrey score, and fracture consolidation and complications were the main secondary outcomes. Results: At 1 year postoperatively, no significant difference was found with regard to shoulder function according to the University of California, Los Angeles scale between the minimally invasive plate and locking intramedullary nail (31.4 points vs 31.2 points, P = .98). There was also no difference in elbow function (94.8 points vs 94.1 points, P = .96). Complications were similar between the groups, without significant differences regarding infection (P > .99), symptomatic shoulder stiffness (P = .488), and neurapraxia of the lateral cutaneous nerve of the forearm (P = .475). Fracture union was achieved in all but 1 patient (2.4%) in the intramedullary nail group within 1 year after the surgical procedure. Conclusion: There is no significant difference in shoulder function between antegrade intramedullary nailing and minimally invasive plate osteosynthesis for the treatment of displaced humeral shaft fractures, despite the limited power of our study. (C) 2014 Journal of Shoulder and Elbow Surgery Board of Trustees.
- The rotation of the humeral head does not alter radiographic evaluation of the head-shaft angle(2016) MALAVOLTA, Eduardo A.; ASSUNCAO, Jorge H.; PAGOTTO, Raphaella A.; AVELINO, Rafael L.; GRACITELLI, Mauro E. C.; PEREIRA, Cesar A. M.; JACOMO, Alfredo L.; FERREIRA NETO, Arnaldo A.Background: The head-shaft angle is used to plan osteotomies and arthroplasties and to assess the radiographic outcomes of surgical treatment for proximal humerus fractures. There are no published data showing whether different degrees of arm rotation interfere with the evaluation of this angle. Methods: Eighteen humeri from adult cadavers were used. Radiographs were taken with the specimens initially placed in a true anteroposterior position and then subsequently positioned with internal and external rotations of 10 degrees, 20 degrees, and 30 degrees. All radiographs were evaluated by 3 shoulder and elbow surgeons at 2 different times 3 months apart. The head-shaft angle was measured using a picture archiving and communication system. Results: For the humerus in the neutral position, the head-shaft angle was 137 degrees +/- 4 degrees. With the anatomic specimen positioned with increasing external and internal rotations, there was a maximum difference of 2 degrees compared with the value observed in the neutral position, which was not a significant difference (P = .911). Measurements of the head-shaft angle showed a good interobserver correlation coefficient, with a value of 0.788 (0.728-0.839) for all measurements. The intraobserver correlation coefficient ranged from moderate to excellent (0.536-0.938). Conclusion: The head-shaft angle did not change significantly with varying degrees of humeral rotation. The interobserver correlation coefficient showed good reliability, and the intraobserver correlation was moderate to excellent. (C) 2016 Journal of Shoulder and Elbow Surgery Board of Trustees.
- Clinical outcomes of arthroscopic rotator cuff repair: correlation between the University of California, Los Angeles (UCLA) and American Shoulder and Elbow Surgeons (ASES) scores(2017) ASSUNCAO, Jorge H.; MALAVOLTA, Eduardo A.; GRACITELLI, Mauro E. C.; HIRAGA, Dalton Y.; SILVA, Flavio R. da; FERREIRA NETO, Arnaldo A.Background: There are more than 40 outcome scores for evaluating shoulder pain and function. Some studies have correlated the results obtained using different scales, but none has compared the results obtained by the University of California, Los Angeles (UCLA) and American Shoulder and Elbow Surgeons (ASES) scores. Methods: We performed a retrospective study to evaluate patients who underwent arthroscopic rotator cuff repair with 2 years' follow-up. The patients were evaluated by the UCLA and ASES scores preoperatively and at 6, 12, and 24 months after surgery. The Pearson correlation coefficient (r) was calculated to measure the degree of correlation between the 2 outcome scores. Results: We evaluated 143 patients. At 24 months postoperatively, the UCLAandASES scores were 30.4 +/- 5.8 and 81.2 +/- 20.8, respectively (P < .001). The UCLAand ASES scores showed a very high correlation (r = 0.91, P < .001). In all the postoperative clinical evaluations, the scores obtained from the 2 scales were highly or very highly correlated (r = 0.87-0.92, P < .001). For the preoperative scores, the correlation was moderate (r = 0.67, P < .001). Conclusion: The UCLA and ASES scores presented a very high correlation in the evaluation of surgical treatment of rotator cuff tear. In the preoperative period, the correlation was moderate. (C) 2017ournal of Shoulder and Elbow Surgery Board of Trustees. All rights reserved.