AMERICO ZOPPI FILHO

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Instituto de Ortopedia e Traumatologia, 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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  • article 10 Citação(ões) na Scopus
    ANATOMICAL AND FUNCTIONAL STUDY OF THE MEDIAL COLLATERAL LIGAMENT COMPLEX OF THE ELBOW
    (2012) TRIBST, Marcelo Fernandes; ZOPPI FILHO, Americo; CAMARGO FILHO, Jose Carlos Silva; SASSI, Darlene; CARVALHO JUNIOR, Antonio Egydio de
    Objective: To carry out an anatomical study of the medial collateral ligament, an important elbow stabilizer in different degrees of elbow flexion-extension. Methods: Forty elbows were dissected in order to analyze the functional behavior of the anterior, posterior and transverse ligament bands during valgus stress maneuvers of the elbow in different degrees of flexion and extension. Two groups were determined; in the group GPA the posterior band of the ligament was sectioned initially, then the articular capsule and finally the anterior band; in group GAP this order was reversed. Results: Instability was observed in GPA only in the third stage, when there was a greater mean elbow's opening during the flexion (between 50 degrees and 70 degrees); in GAP the instability was present since the first stage; the degrees of flexion with greater instability were the same as in group GPA. Conclusion: The anterior band of the medial collateral ligament of the elbow is the most important stabilizer of the elbow valgus instability, and its principal action occurs between 50 degrees and 70 degrees of elbow flexion. Level of Evidence III, Diagnostic Studies Investigating a diagnostic test.
  • article 8 Citação(ões) na Scopus
    TREATMENT OF RECURRENT ANTERIOR SHOULDER DISLOCATION WITH BRISTOW-LATARJET PROCEDURE
    (2021) FERREIRA FILHO, Arnaldo Amado; MALAVOLTA, Eduardo Angeli; GRACITELLI, Mauro Emilio Conforto; ASSUNCAO, Jorge Henrique; SILVA, Fernando Brandao De Andrade E; BOLLIGER NETO, Raul; FILHO, Americo Zoppi; FERREIRA NETO, Arnaldo Amado
    Objectives: To describe the clinical and radiographic results of patients with traumatic recurrent anterior shoulder dislocation treated with the Bristow-Latarjet procedure. Methods: Retrospective case series including 44 patients (45 shoulders) who underwent the Bristow-Latarjet procedure. The graft was fixed ""standing"" in 84% of the shoulders, and ""lying"" in 16%. Results: The follow-up was 19.25 +/- 10.24 months. We obtained 96% of good results, with 2 recurrences presented as subluxation. Graft healing occurred in 62% of cases. The graft was positioned below the glenoid equator in 84% of the cases, and less than 10 mm from its edge in 98%. The external rotation had a limitation of 20.7 degrees +/- 15.9 degrees, while the internal rotation was limited in 4.0 degrees +/- 9.6 degrees. The limitation of rotation and the position of the graft (""standing"" or ""lying"") did not correlate with graft healing (p>0.05). Bicortical fixation was positively correlated with healing (p<0.001). Conclusion: The Bristow-Latarjet technique is indicated for the treatment of recurrent anterior dislocations and subluxations of the shoulder. It is a safe treatment method, which can be used in people with intense physical activity. Limiting shoulder mobility does not prevent patients from returning to their usual occupations.