JORGE HENRIQUE ASSUNCAO
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
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- ARTHROSCOPIC LATARJET PROCEDURE: SAFETY EVALUATION IN CADAVERS(2013) GRACITELLI, Mauro Emilio Conforto; FERREIRA NETO, Arnaldo Amado; BENEGAS, Eduardo; MALAVOLTA, Eduardo Angeli; SUNADA, Edwin Eiji; ASSUNCAO, Jorge HenriqueObjective: To evaluate the safety of arthroscopic Latarjet procedure in cadavers. Methods: Twelve cadaveric shoulders underwent arthroscopic Latarjet procedure in our laboratory for arthroscopy, by four different surgeons. Following surgery, the specimens were subjected to radiographic examination and evaluated by an independent examiner. Nineteen parameters were evaluated, including the coracoid graft fixation, positioning and angulation of the screws, neurological damage and integrity of tendons. Results: Four procedures were considered to be satisfactory, with no difference among the surgeons. The mean angulation of the screws was 27.2 degrees. The subscapularis splitting was, on average, 17.8mm from the upper edge. The coracoid graft was properly positioned relative to equator of the glenoid in 11 cases. There was no injury to the axillary or musculocutaneous nerves. The main complications were: interposition of soft tissue, suprascapular nerve injury, articular deviation of the graft, diastasis and conjoined tendon injury. Conclusion: The arthroscopic Latarjet procedure is a complex technique in which each step must be precise to reduce the risk of complications. Our study showed a high risk of failure of the procedure. Level of Evidence IV, Case Series.
- Humeral internal rotation osteotomy for the treatment of Erb-Duchenne-type obstetric palsy: clinical and radiographic results(2013) ASSUNCAO, Jorge Henrique; FERREIRA NETO, Arnaldo Amado; BENEGAS, Eduardo; BOLLIGER NETO, Raul; PRADA, Flavia Santis; MALAVOLTA, Eduardo Angeli; GRACITELLI, Mauro Emilio Conforto; CAMANHO, Gilberto LuisOBJECTIVE: To evaluate the functional and radiographic results in patients undergoing shoulder anterior soft tissue stretching in association with open reduction and internal rotation osteotomy to centralize the humeral head as a treatment for Erb-Duchenne obstetric palsy sequelae. METHOD: A total of 35 patients underwent this surgical treatment, and the mean follow-up was 4.6 years. The Mallet scale was applied before and after the surgical procedure. A total of 20 patients underwent computed tomography to assess the glenoid version and humeral head subluxation. RESULTS: Functional improvement was achieved, as evidenced by an increase in the Mallet scale score from 12.14 to 16.46 (p<0.001). The correction of retroversion was achieved once the glenoid version ranged from 21.4 to - 12 degrees (p<0.001). The humeral head subluxation improved from 6.5 to 35.2% (p<0.001). Patients older than 6 years of age did not achieve glenohumeral joint improvement with respect to dysplastic abnormalities. CONCLUSION: Internal rotation osteotomy in association with the stretching of anterior soft tissues of the shoulder in patients under the age of 7 years provided improvements in the function, retroversion, and subluxation of the glenohumeral joint.
- Comments on: ""Centering osteotomy for treatment of posterior shoulder dislocation in obstetrical palsy"" by PR Vilaca, MK Uezami, A Zoppi Filho published in Orthop Tramatol Surg Res 2012; 98: 199-205(2013) FERREIRA NETO, A. A.; ASSUNCAO, J. H.; FERREIRA FILHO, A.; MALAVOLTA, E. A.; GRACITELLI, M. E. C.