GUSTAVO JUM YAMAMOTO

Índice h a partir de 2011
2
Projetos de Pesquisa
Unidades Organizacionais
PAHC, Hospital das Clínicas, Faculdade de Medicina - Médico

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Agora exibindo 1 - 7 de 7
  • conferenceObject
    THE ROLE OF FUNCTIONAL ORTHOSIS IN PATELLOFEMORAL OSTEOARTHRITIS: A CONTROLLED RANDOMIZED CLINICAL TRIAL
    (2019) SR., G. P. Ocampos; REZENDE, M. U. de; SR., G. J. Yamamoto; LUZO, M. M.; FARIAS, F. E. de; SILVA, C. A. da
  • article 6 Citação(ões) na Scopus
    RANDOMIZED PROSPECTIVE STUDY ON THE TREATMENT OF FEMORO-PATELLAR OSTEOARTHRITIS USING BRACING
    (2019) YAMAMOTO, Gustavo Jum; CAMPOS, Guilherme Pereira; LUZO, Maria Candidade Miranda; SILVA, Cleidneia Aparecida Clemente da; FARIAS, Fabiane Elize Sabino de; REZENDE, Marcia Uchoa de
    Objective: To compare the effect of a brace designed to stabilize the patellofemoral joint to that of a patella-shaped neoprene sleeve with patella cut out in patients with patellofemoral osteoarthritis. Methods: Fifty-seven patients with femoro-patellar osteoarthritis were allocated to two groups: patients with femoro-patellar functional brace and those with a neoprene knee with a patellar orifice. Both groups underwent clinical treatment of osteoarthritis and used medications daily 1 month before and up to 3 months after brace placement. They were evaluated with the WOMAC and Lequesne questionnaires and performed five times sit to stand test, Timed Up and Go test, and six minutes walk test immediately before and 1 and 3 months after brace placement. Results: Both groups had improved pain, stiffness, and function with no difference between groups. Drug use decreased in both groups in the first month but increased in the third month. Naproxen use was progressively higher in the control group. Conclusion: Both knee orthoses improved pain and function and altered drug use only in the first month. Functional knee brace provided analgesia without increased use of naproxen.
  • article 32 Citação(ões) na Scopus
    Establishing minimal clinically important difference for the UCLA and ASES scores after rotator cuff repair
    (2022) MALAVOLTA, Eduardo A.; YAMAMOTO, Gustavo J.; BUSSIUS, Daniel T.; ASSUNCAO, Jorge H.; ANDRADE-SILVA, Fernando B.; GRACITELLI, Mauro E. C.; FERREIRA NETO, Arnaldo A.
    Background/Hypothesis: Minimal clinically important difference (MCID) is a vital tool in the analysis of clinical results. It allows the determination of clinical relevance of statistical data. Our hypothesis was that specific differences between preoperative and postoperative scores would be able to accurately predict patient perception of improvement and satisfaction as reflected by anchor and distribution-based questions. Methods: Retrospective cohort with patients that underwent rotator cuff repair. We evaluated the University of California at Los Angeles Shoulder Rating Scale (UCLA) and the American Shoulder and Elbow Surgeons Assessment Form (ASES) before and 12-months after surgery. Anchor-based, distribution-based and minimum detectable change (MDC) approaches were utilized. Results: We evaluated 289 shoulders. The MCID for the UCLA scale was 4.5 points using the anchor method, 2.5 by the distribution method and 3.6 by MDC. Patients with a baseline score > 20 presented a lower MCID (1.5, 1.1 and 1.7, respectively). For the ASES score, the MCID was 6.1 by the anchor method, 10.5 based on the distribution method and 26.3 by MDC. In the group of patients above the 60 point cutoff, the obtained values were 2.4, 4.9 and 13.6, respectively. Conclusion: The mean MCID value for the UCLA shoulder score is 3.5 points, ranging from 2.5 points (distribution method) to 4.5 points (anchor method). The mean MCID value for the ASES score was 15.2 points, ranging from 6.1 (anchor method) to 26.3 (MDC). Patients groups presenting with higher preoperative scores showed lower MCID values. This fact needs to be considered in postoperative comparisons between treatment groups. Level of evidence: Basic Science Study, Validation of Outcomes Instruments/Classification Systems.
  • bookPart
    Tomografia da córnea por coerência óptica e mapa epitelial
    (2022) YAMAMOTO, Gustavo; HALLA, Nathalia Cavalheiro
  • article 0 Citação(ões) na Scopus
    Establishing minimal clinically important difference for the UCLA and ASES scores after rotator cuff repair
    (2022) MALAVOLTA, E.; YAMAMOTO, G.; BUSSIUS, D.; ASSUNçãO, J.; ANDRADE-SILVA, F.; GRACITELLI, M.; FERREIRA NETO, A.
    Background/Hypothesis: Minimal clinically important difference (MCID) is a vital tool in the analysis of clinical results. It allows the determination of clinical relevance of statistical data. Our hypothesis was that specific differences between preoperative and postoperative scores would be able to accurately predict patient perception of improvement and satisfaction as reflected by anchor and distribution-based questions. Methods: Retrospective cohort with patients that underwent rotator cuff repair. We evaluated the University of California at Los Angeles Shoulder Rating Scale (UCLA) and the American Shoulder and Elbow Surgeons Assessment Form (ASES) before and 12-months after surgery. Anchor-based, distribution-based and minimum detectable change (MDC) approaches were utilized. Results: We evaluated 289 shoulders. The MCID for the UCLA scale was 4.5 points using the anchor method, 2.5 by the distribution method and 3.6 by MDC. Patients with a baseline score > 20 presented a lower MCID (1.5, 1.1 and 1.7, respectively). For the ASES score, the MCID was 6.1 by the anchor method, 10.5 based on the distribution method and 26.3 by MDC. In the group of patients above the 60 point cutoff, the obtained values were 2.4, 4.9 and 13.6, respectively. Conclusion: The mean MCID value for the UCLA shoulder score is 3.5 points, ranging from 2.5 points (distribution method) to 4.5 points (anchor method). The mean MCID value for the ASES score was 15.2 points, ranging from 6.1 (anchor method) to 26.3 (MDC). Patients groups presenting with higher preoperative scores showed lower MCID values. This fact needs to be considered in postoperative comparisons between treatment groups. Level of evidence: Basic Science Study, Validation of Outcomes Instruments/Classification Systems. © 2021 Elsevier Masson SAS
  • article
    Nonoperative Treatment for Displaced Proximal Humeral Fractures in Elderly Patients: Correlation Between Deviations and Clinical Outcomes
    (2022) GRACITELLI, Mauro Emilio Conforto; YAMAMOTO, Gustavo Jum; MALAVOLTA, Eduardo Angeli; ANDRADE-SILVA, Fernando Brandão; KOJIMA, Kodi Edson; FERREIRA NETO, Arnaldo Amado
    Abstract Objectives To describe the functional result of the conservative treatment of displaced proximal humerus fractures (PHF) using the American Shoulder and Elbow Surgeons (ASES) score after 12 months and assess whether the different initial classifications and radiographic measurements are related to clinical results. Methods Forty patients > 60 years old, with displaced PHUs submitted to conservative treatment were evaluated at standardized times (3, 6, and 12 months). The American Society of Shoulder and Elbow Surgeons (ASES), Constant-Murley and Single Assessment Numeric Evaluation (SANE) scales were used as clinical outcomes. Radiographic variables included the Neer and Resch classifications, the presence and displacement of tuberosity fracture, metaphyseal comminution, medial periosteal lesion, and angular and translational deviations of the head in the coronal and sagittal plane. Results The result of the ASES score was 77.7 23.2 for the whole sample, the mean absolute values of the Constant-Murley score were 68.7 16 and 82.6% for the scale relative to the contralateral side. The SANE scale at 12 months was 84.8 19. We observed that the severity of the Neer classification and the coronal plane angular deviation (measured by the head-shaft angle) and the presence of fractures in both tuberosities negatively influenced the ASES score after 12 months of treatment. Conclusion Nonoperative treatment of displaced proximal humerus fractures in elderly patients results in good clinical results. Clinical results are negatively influenced by the angular deviation of the humeral head and the presence of fractures of the greater and lesser tubercles, as well as by the Neer classification.
  • conferenceObject
    COMPARISON OF TWO ORTHOSES IN THE TREATMENT OF FEMORO-PATELLAR OSTEOARTHRITIS
    (2019) OCAMPOS, G. P.; DEREZENDE, M. U.; YAMAMOTO, G. J.; LUZO, M. C. M.; SILVA, C. A. C. Da; DEFARIAS, F. E. S.; DECAMARGO, O. P.