americo zoppi | Universidade de São Paulo (original) (raw)

Papers by americo zoppi

Research paper thumbnail of Fratura do úmero proximal tratadas com osteossíntese pela via de acesso anterolateral

The main surgical approach in proximal humeral fractures is the deltopectoral approach. Many surg... more The main surgical approach in proximal humeral fractures is the deltopectoral approach. Many surgeons avoid the anterolateral approach, fearing its complications, especially axillary nerve injury. The objective of this study is to evaluate shoulder function and complications in patients with proximal humeral fractures treated using an anterolateral approach with direct observation of the axillary nerve. Methods: Retrospective study with postoperative radiological and functional evaluations (Constant and DASH scores) and review of the complications. The associations between fracture classification and the difference in Constant scores among the subjects and the final angle of consolidation were analyzed using Fisher's test or analysis of variance (ANOVA). The Constant scores were compared among the shoulders using the paired t-test. Results: The study evaluated 35 patients. Shoulder function was decreased, compared with the contralateral side (p <0.005). The only factor relate...

Research paper thumbnail of Reproductive Effort of Widowed Birds

The Journal of Animal Ecology, 1986

Research paper thumbnail of New Minimally Invasive Bridge-Plate Technique for Treatment of Atrophic Humeral Shaft Nonunion

Shafa Orthopedic Journal, 2015

Introduction: Humeral nonunion is a condition resulting from lack of healing at the fracture site... more Introduction: Humeral nonunion is a condition resulting from lack of healing at the fracture site often associated with alteration of the local biological potential. Case Presentation: A 38-year-old male patient, who had a fracture in the left humerus caused by a fall 8 months earlier was presented. He was treated non-operatively with Sarmiento brace. Conclusions: The present study introduced a new minimally invasive bridge-plate technique for treatment of humeral shaft nonunion that avoids wide dissection, radial nerve isolation and periosteum stripping. It is a safe procedure, which led to bone healing and good results in a patient with atrophic humeral shaft nonunion.

Research paper thumbnail of Fracture of distal humerus: MIPO technique with visualization of the radial nerve

Acta Ortopédica Brasileira

To evaluate the outcomes in patients treated for humerus distal third fractures with MIPO techniq... more To evaluate the outcomes in patients treated for humerus distal third fractures with MIPO technique and visualization of the radial nerve by an accessory approach, in those without radial palsy before surgery. The patients were treated with MIPO technique. The visualization and isolation of the radial nerve was done by an approach between the brachialis and the brachiorradialis, with an oblique incision, in the lateral side of the arm. MEPS was used to evaluate the elbow function. Seven patients were evaluated with a mean age of 29.8 years old. The average follow up was 29.85 months. The radial neuropraxis after surgery occurred in three patients. The sensorial recovery occurred after 3.16 months on average and also of the motor function, after 5.33 months on average, in all patients. We achieved fracture consolidation in all patients (M=4.22 months). The averages for flexion-extension and prono-supination were 112.85° and 145°, respectively. The MEPS average score was 86.42. There ...

Research paper thumbnail of Deformidade de Sprengel: revisäo de 15 casos operados

Rev Bras Ortop, Sep 1, 1995

Research paper thumbnail of Medidas radiográficas da articulaçäo glenumeral em homens normais e portadores de instabilidade anterior

Rev Bras Ortop, Sep 1, 1993

Research paper thumbnail of Avaliação isocinética de 18 pacientes do sexo masculino submetidos à correção cirúrgica da luxação acromioclavicular aguda com seguimento mínimo de dois anos

Acta Ortopedica Brasileira, 2002

Eighteen male patients, mean age 36 years, submitted to surgical treatment of ALLMAN-TOSSY grade ... more Eighteen male patients, mean age 36 years, submitted to surgical treatment of ALLMAN-TOSSY grade III acute acromioclavicular luxation were studied. They were isokinetically evaluated during an evolution period ranging from 24 to 127 months. The isokinetic evaluation was carried out with a CY-BEX ® 6000 computerized dynamometer, at a 60 º /s angular speed, showing significant results in vertical abduction, with a deficit in peak torque in the operated on shoulder as compared to the contralateral side. When the groups with and without subluxation were compared a deficit in total work was observed in the group with subluxation both in adduction and abduction.

Research paper thumbnail of Um caso de sinovite vilonodular do ombro em adolescente: diagn�stico por imagem e anatomopatol�gico

Revista Brasileira De Reumatologia, 2009

Recebido em (Received on) 30/9/2008. Aprovado (Approved), após revisão, em 14/11/08. Declaramos a... more Recebido em (Received on) 30/9/2008. Aprovado (Approved), após revisão, em 14/11/08. Declaramos a inexistência de conflitos de interesse (We declare no conflict of interest).

Research paper thumbnail of Estudo comparativo entre a ultra-sonografia e a artrografia do ombro nas lesöes do manguito rotador

Rev Bras Ortop, Dec 1, 1989

Research paper thumbnail of Evaluation of Children with Radial Neck Fractures Treated with Flexible Intramedullary Nail

Acta Ortopédica Brasileira, 2016

Objective: To evaluate the results of displaced radial neck fractures in children trated surgical... more Objective: To evaluate the results of displaced radial neck fractures in children trated surgically with flexible titanium intramedullary nails. Method: This is a retrospective study of five cases of radial neck fractures with displacement greater than 30° fixed with flexible intramedullary nails. Patients were evaluated regarding functional outcome through range of motion and the Mayo Elbow Performance Score (MEPS), as well as radiographic exams. Results: Five patients, with a mean age of 8.4 years were assessed, during a mean post-operative follow up of 12.2 months. Open reduction was necessary in three cases with major displacement. At the end of the follow up, 80% of the patients had excellent results, 20% good results, and all fractures healed. As complications we observed: heterotopic ossification, superficial infection and radial head necrosis. Conclusions: In spite of the small sample, our results with flexible titanium intramedullary nails were similar to the current literature, with good functional outcomes. Level of Evidence III, Retrospective Study.

Research paper thumbnail of Clinical and Radiographic Evaluation of Elbows from Spinal Cord Injuried Patients

Acta ortopedica brasileira

Objectives: To evaluate clinically and radiologically the elbows of spinal cord injured patients ... more Objectives: To evaluate clinically and radiologically the elbows of spinal cord injured patients and compare them to the control group. Methods: Twenty patients (10 paraplegics and 10 tetraplegics) were clinically evaluated through assessment of pain scale, measurement of active and passive range of motion, degree of muscle strength and MEPS score. They were also submitted to bilateral plain radiography of the elbows. Both groups were compared to the control group. Results: Four paraplegic and three tetraplegic patients referred mild to moderate, sporadic and motion related pain. The control group was asymptomatic. No statistic significant difference was found in passive range of motion among the three groups. The tetraplegic group showed a lower active range of motion as well as lower MEPS score as compared to the control group. Equal number of patients in the spinal cord injured patients had radiological abnormalities, but those were more severe in the tetraplegic group. Conclusion: Spinal cord injured patients presented clinical and radiological elbow abnormalities, which were more evident on tetraplegics. Level of Evidence III, Case Control.

Research paper thumbnail of Tratamento conservador da síndrome do impacto no ombro: estudo baseado em 109 casos tratados no departamento de ortopedia e traumatologia da Faculdade de Medicina da Universidade de Säo Paulo

Rev Bras Ortop, Jun 1, 1988

... 1 / 1, LILACS, seleciona. para imprimir. Fotocópia. experimental, Documentos relacionados. Id... more ... 1 / 1, LILACS, seleciona. para imprimir. Fotocópia. experimental, Documentos relacionados. Id: 58664. Autor: Ferreira Filho, Arnaldo Amado; Greve, Júlia Maria D'Andrea; Zoppi Filho, Américo; Bolliger Neto, Raul; Costa, Roberto Cavalieri; Ferreira Neto, Arnaldo Amado. ...

Research paper thumbnail of Fratura supracondiliana do úmero em crianças: estudo de 90 casos operados

Rev Bras Ortop, Jun 1, 1997

Research paper thumbnail of Artroplastia de ressecção na osteoartrose do cotovelo secundária à artrite reumatóide

Rev Bras Ortop, Jun 1, 2005

Research paper thumbnail of Estudo da origem acromial do músculo deltoide

Rbm Rev Bras Med, Mar 1, 2010

Research paper thumbnail of A osteotomia de centralização da cabeça umeral, na luxação posterior do ombro, seqüela de paralisia obstétrica

Rev Bras Ortop, Dec 1, 2004

Page 1. Rev Bras Ortop _ Vol. 39, Nos 11/12 – Nov/Dez, 2004 661 A OSTEOTOMIA DE CENTRALIZAÇÃO DA ... more Page 1. Rev Bras Ortop _ Vol. 39, Nos 11/12 – Nov/Dez, 2004 661 A OSTEOTOMIA DE CENTRALIZAÇÃO DA CABEÇA UMERAL, NA LUXAÇÃO POSTERIOR DO OMBRO, SEQÜELA DE PARALISIA OBSTÉTRICA A osteotomia de centralização da cabeça ...

Research paper thumbnail of Consideraçöes sobre a avaliaçäo e registro dos movimentos do ombro

Rev Hosp Clin Fac Med Univ Sao Paulo, Aug 1, 1986

Research paper thumbnail of Tratamento das fraturas da tíbia com a utilizaçäo de pinos intramedulares de Rush

Rev Bras Ortop, Mar 1, 1987

Research paper thumbnail of Fratura Distal Da Diáfise Umeral: Técnica Mipocom Visualização Do Nervo Radial

Acta Ortopedica Brasileira, 2014

Objectives: To evaluate the outcomes in patients treated for humerus distal third fractures with ... more Objectives: To evaluate the outcomes in patients treated for humerus distal third fractures with MIPO technique and visualization of the radial nerve by an accessory approach, in those without radial palsy before surgery. Methods: The patients were treated with MIPO technique. The visualization and isolation of the radial nerve was done by an approach between the brachialis and the brachiorradialis, with an oblique incision, in the lateral side of the arm. MEPS was used to evaluate the elbow function. Results: Seven patients were evaluated with a mean age of 29.8 years old. The average follow up was 29.85 months. The radial neuropraxis after surgery occurred in three patients. The sensorial recovery occurred after 3.16 months on average and also of the motor function, after 5.33 months on average, in all patients. We achieved fracture consolidation in all patients (M=4.22 months). The averages for flexion-extension and prono-supination were 112.85° and 145°, respectively. The MEPS average score was 86.42. There was no case of infection. Conclusion: This approach allowed excluding a radial nerve interposition on site of the fracture and/or under the plate, showing a high level of consolidation of the fracture and a good evolution of the range of movement of the elbow. Level of Evidence IV, Case Series.

Research paper thumbnail of Tratamento cirúrgico da osteocondrite dissecante em equinos: estudo retrospectivo e análise crítica

Aos meus pais, Renato (in memorian) e Mariangela, por todo seu amor, carinho e educação; exemplos... more Aos meus pais, Renato (in memorian) e Mariangela, por todo seu amor, carinho e educação; exemplos de respeito, humildade e dedicação. O meu amor e gratidão por vocês são imensos e eternos. A Liana, com quem divido bons e maus momentos, sempre com muito respeito, amor e carinho, trilhando uma vida e construindo uma família. Aos meus avós, que adorariam ver a conclusão desse trabalho. Ao meu irmão Fernando que sempre torceu e apoiou este trabalho. Ao meu orientador, Professor Luis Cláudio, que me orienta, aconselha e inspira desde o início e é o grande responsável pela minha formação profissional. AGRADECIMENTOS Aos amigos André Zoppa e Raquel Baccarin por todo apoio e ensinamentos profissionais e pessoais. Ao amigo Marcio Augusto que sempre incentivou e auxiliou nas decisões profissionais. Ao Neimar Roncati, amigo, chefe e companheiro, por toda paciência e compreensão.

Research paper thumbnail of Fratura do úmero proximal tratadas com osteossíntese pela via de acesso anterolateral

The main surgical approach in proximal humeral fractures is the deltopectoral approach. Many surg... more The main surgical approach in proximal humeral fractures is the deltopectoral approach. Many surgeons avoid the anterolateral approach, fearing its complications, especially axillary nerve injury. The objective of this study is to evaluate shoulder function and complications in patients with proximal humeral fractures treated using an anterolateral approach with direct observation of the axillary nerve. Methods: Retrospective study with postoperative radiological and functional evaluations (Constant and DASH scores) and review of the complications. The associations between fracture classification and the difference in Constant scores among the subjects and the final angle of consolidation were analyzed using Fisher's test or analysis of variance (ANOVA). The Constant scores were compared among the shoulders using the paired t-test. Results: The study evaluated 35 patients. Shoulder function was decreased, compared with the contralateral side (p <0.005). The only factor relate...

Research paper thumbnail of Reproductive Effort of Widowed Birds

The Journal of Animal Ecology, 1986

Research paper thumbnail of New Minimally Invasive Bridge-Plate Technique for Treatment of Atrophic Humeral Shaft Nonunion

Shafa Orthopedic Journal, 2015

Introduction: Humeral nonunion is a condition resulting from lack of healing at the fracture site... more Introduction: Humeral nonunion is a condition resulting from lack of healing at the fracture site often associated with alteration of the local biological potential. Case Presentation: A 38-year-old male patient, who had a fracture in the left humerus caused by a fall 8 months earlier was presented. He was treated non-operatively with Sarmiento brace. Conclusions: The present study introduced a new minimally invasive bridge-plate technique for treatment of humeral shaft nonunion that avoids wide dissection, radial nerve isolation and periosteum stripping. It is a safe procedure, which led to bone healing and good results in a patient with atrophic humeral shaft nonunion.

Research paper thumbnail of Fracture of distal humerus: MIPO technique with visualization of the radial nerve

Acta Ortopédica Brasileira

To evaluate the outcomes in patients treated for humerus distal third fractures with MIPO techniq... more To evaluate the outcomes in patients treated for humerus distal third fractures with MIPO technique and visualization of the radial nerve by an accessory approach, in those without radial palsy before surgery. The patients were treated with MIPO technique. The visualization and isolation of the radial nerve was done by an approach between the brachialis and the brachiorradialis, with an oblique incision, in the lateral side of the arm. MEPS was used to evaluate the elbow function. Seven patients were evaluated with a mean age of 29.8 years old. The average follow up was 29.85 months. The radial neuropraxis after surgery occurred in three patients. The sensorial recovery occurred after 3.16 months on average and also of the motor function, after 5.33 months on average, in all patients. We achieved fracture consolidation in all patients (M=4.22 months). The averages for flexion-extension and prono-supination were 112.85° and 145°, respectively. The MEPS average score was 86.42. There ...

Research paper thumbnail of Deformidade de Sprengel: revisäo de 15 casos operados

Rev Bras Ortop, Sep 1, 1995

Research paper thumbnail of Medidas radiográficas da articulaçäo glenumeral em homens normais e portadores de instabilidade anterior

Rev Bras Ortop, Sep 1, 1993

Research paper thumbnail of Avaliação isocinética de 18 pacientes do sexo masculino submetidos à correção cirúrgica da luxação acromioclavicular aguda com seguimento mínimo de dois anos

Acta Ortopedica Brasileira, 2002

Eighteen male patients, mean age 36 years, submitted to surgical treatment of ALLMAN-TOSSY grade ... more Eighteen male patients, mean age 36 years, submitted to surgical treatment of ALLMAN-TOSSY grade III acute acromioclavicular luxation were studied. They were isokinetically evaluated during an evolution period ranging from 24 to 127 months. The isokinetic evaluation was carried out with a CY-BEX ® 6000 computerized dynamometer, at a 60 º /s angular speed, showing significant results in vertical abduction, with a deficit in peak torque in the operated on shoulder as compared to the contralateral side. When the groups with and without subluxation were compared a deficit in total work was observed in the group with subluxation both in adduction and abduction.

Research paper thumbnail of Um caso de sinovite vilonodular do ombro em adolescente: diagn�stico por imagem e anatomopatol�gico

Revista Brasileira De Reumatologia, 2009

Recebido em (Received on) 30/9/2008. Aprovado (Approved), após revisão, em 14/11/08. Declaramos a... more Recebido em (Received on) 30/9/2008. Aprovado (Approved), após revisão, em 14/11/08. Declaramos a inexistência de conflitos de interesse (We declare no conflict of interest).

Research paper thumbnail of Estudo comparativo entre a ultra-sonografia e a artrografia do ombro nas lesöes do manguito rotador

Rev Bras Ortop, Dec 1, 1989

Research paper thumbnail of Evaluation of Children with Radial Neck Fractures Treated with Flexible Intramedullary Nail

Acta Ortopédica Brasileira, 2016

Objective: To evaluate the results of displaced radial neck fractures in children trated surgical... more Objective: To evaluate the results of displaced radial neck fractures in children trated surgically with flexible titanium intramedullary nails. Method: This is a retrospective study of five cases of radial neck fractures with displacement greater than 30° fixed with flexible intramedullary nails. Patients were evaluated regarding functional outcome through range of motion and the Mayo Elbow Performance Score (MEPS), as well as radiographic exams. Results: Five patients, with a mean age of 8.4 years were assessed, during a mean post-operative follow up of 12.2 months. Open reduction was necessary in three cases with major displacement. At the end of the follow up, 80% of the patients had excellent results, 20% good results, and all fractures healed. As complications we observed: heterotopic ossification, superficial infection and radial head necrosis. Conclusions: In spite of the small sample, our results with flexible titanium intramedullary nails were similar to the current literature, with good functional outcomes. Level of Evidence III, Retrospective Study.

Research paper thumbnail of Clinical and Radiographic Evaluation of Elbows from Spinal Cord Injuried Patients

Acta ortopedica brasileira

Objectives: To evaluate clinically and radiologically the elbows of spinal cord injured patients ... more Objectives: To evaluate clinically and radiologically the elbows of spinal cord injured patients and compare them to the control group. Methods: Twenty patients (10 paraplegics and 10 tetraplegics) were clinically evaluated through assessment of pain scale, measurement of active and passive range of motion, degree of muscle strength and MEPS score. They were also submitted to bilateral plain radiography of the elbows. Both groups were compared to the control group. Results: Four paraplegic and three tetraplegic patients referred mild to moderate, sporadic and motion related pain. The control group was asymptomatic. No statistic significant difference was found in passive range of motion among the three groups. The tetraplegic group showed a lower active range of motion as well as lower MEPS score as compared to the control group. Equal number of patients in the spinal cord injured patients had radiological abnormalities, but those were more severe in the tetraplegic group. Conclusion: Spinal cord injured patients presented clinical and radiological elbow abnormalities, which were more evident on tetraplegics. Level of Evidence III, Case Control.

Research paper thumbnail of Tratamento conservador da síndrome do impacto no ombro: estudo baseado em 109 casos tratados no departamento de ortopedia e traumatologia da Faculdade de Medicina da Universidade de Säo Paulo

Rev Bras Ortop, Jun 1, 1988

... 1 / 1, LILACS, seleciona. para imprimir. Fotocópia. experimental, Documentos relacionados. Id... more ... 1 / 1, LILACS, seleciona. para imprimir. Fotocópia. experimental, Documentos relacionados. Id: 58664. Autor: Ferreira Filho, Arnaldo Amado; Greve, Júlia Maria D'Andrea; Zoppi Filho, Américo; Bolliger Neto, Raul; Costa, Roberto Cavalieri; Ferreira Neto, Arnaldo Amado. ...

Research paper thumbnail of Fratura supracondiliana do úmero em crianças: estudo de 90 casos operados

Rev Bras Ortop, Jun 1, 1997

Research paper thumbnail of Artroplastia de ressecção na osteoartrose do cotovelo secundária à artrite reumatóide

Rev Bras Ortop, Jun 1, 2005

Research paper thumbnail of Estudo da origem acromial do músculo deltoide

Rbm Rev Bras Med, Mar 1, 2010

Research paper thumbnail of A osteotomia de centralização da cabeça umeral, na luxação posterior do ombro, seqüela de paralisia obstétrica

Rev Bras Ortop, Dec 1, 2004

Page 1. Rev Bras Ortop _ Vol. 39, Nos 11/12 – Nov/Dez, 2004 661 A OSTEOTOMIA DE CENTRALIZAÇÃO DA ... more Page 1. Rev Bras Ortop _ Vol. 39, Nos 11/12 – Nov/Dez, 2004 661 A OSTEOTOMIA DE CENTRALIZAÇÃO DA CABEÇA UMERAL, NA LUXAÇÃO POSTERIOR DO OMBRO, SEQÜELA DE PARALISIA OBSTÉTRICA A osteotomia de centralização da cabeça ...

Research paper thumbnail of Consideraçöes sobre a avaliaçäo e registro dos movimentos do ombro

Rev Hosp Clin Fac Med Univ Sao Paulo, Aug 1, 1986

Research paper thumbnail of Tratamento das fraturas da tíbia com a utilizaçäo de pinos intramedulares de Rush

Rev Bras Ortop, Mar 1, 1987

Research paper thumbnail of Fratura Distal Da Diáfise Umeral: Técnica Mipocom Visualização Do Nervo Radial

Acta Ortopedica Brasileira, 2014

Objectives: To evaluate the outcomes in patients treated for humerus distal third fractures with ... more Objectives: To evaluate the outcomes in patients treated for humerus distal third fractures with MIPO technique and visualization of the radial nerve by an accessory approach, in those without radial palsy before surgery. Methods: The patients were treated with MIPO technique. The visualization and isolation of the radial nerve was done by an approach between the brachialis and the brachiorradialis, with an oblique incision, in the lateral side of the arm. MEPS was used to evaluate the elbow function. Results: Seven patients were evaluated with a mean age of 29.8 years old. The average follow up was 29.85 months. The radial neuropraxis after surgery occurred in three patients. The sensorial recovery occurred after 3.16 months on average and also of the motor function, after 5.33 months on average, in all patients. We achieved fracture consolidation in all patients (M=4.22 months). The averages for flexion-extension and prono-supination were 112.85° and 145°, respectively. The MEPS average score was 86.42. There was no case of infection. Conclusion: This approach allowed excluding a radial nerve interposition on site of the fracture and/or under the plate, showing a high level of consolidation of the fracture and a good evolution of the range of movement of the elbow. Level of Evidence IV, Case Series.

Research paper thumbnail of Tratamento cirúrgico da osteocondrite dissecante em equinos: estudo retrospectivo e análise crítica

Aos meus pais, Renato (in memorian) e Mariangela, por todo seu amor, carinho e educação; exemplos... more Aos meus pais, Renato (in memorian) e Mariangela, por todo seu amor, carinho e educação; exemplos de respeito, humildade e dedicação. O meu amor e gratidão por vocês são imensos e eternos. A Liana, com quem divido bons e maus momentos, sempre com muito respeito, amor e carinho, trilhando uma vida e construindo uma família. Aos meus avós, que adorariam ver a conclusão desse trabalho. Ao meu irmão Fernando que sempre torceu e apoiou este trabalho. Ao meu orientador, Professor Luis Cláudio, que me orienta, aconselha e inspira desde o início e é o grande responsável pela minha formação profissional. AGRADECIMENTOS Aos amigos André Zoppa e Raquel Baccarin por todo apoio e ensinamentos profissionais e pessoais. Ao amigo Marcio Augusto que sempre incentivou e auxiliou nas decisões profissionais. Ao Neimar Roncati, amigo, chefe e companheiro, por toda paciência e compreensão.