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1.
Acta ortop. bras ; 19(5): 286-288, 2011. ilus, graf, tab
Article in Portuguese | LILACS | ID: lil-608420

ABSTRACT

OBJETIVO: Avaliar os resultados a longo prazo de setenta pacientes submetidos à artrodese do quadril pela técnica original descrita por Davis. MÉTODOS: Realizamos um estudo clínico retrospectivo com 70 pacientes, operados entre 1982 e 1995. A presença de sintomas sobre a coluna lombar, joelho ipsilateral e quadril contralateral foi aferida assim como o sucesso da consolidação da artrodese, o posicionamento da mesma e a eventual indicação para conversão à artroplastia total do quadril. RESULTADOS: O tempo médio de seguimento foi 21,6 anos. Uma consolidação satisfatória foi constatada em 48 pacientes (85,7 por cento). A dor lombar foi presente em 11 pacientes (19,6 por cento) e osteoartrite dolorosa do joelho em quatro pacientes (7,1 por cento). Discussão: Dois trabalhos com seguimento superior ao nosso estudo ( 35 e 38 anos) apresentaram repercussões sobre a coluna lombar mais prevalentes (57 por cento e 62 por cento), assim como dor no joelho homolateral (45 por cento e 57 por cento) e indicação para conversão em artroplastia total do quadril (17 por cento e 28 por cento). CONCLUSÃO: Concluímos que a artrodese do quadril pela técnica de Davis apresenta resultados satisfatórios até o vigésimo ano, porém a presença de dor lombar é mais frequente com o passar dos anos e a dor no joelho homolateral sugere associação com a posição inicial em abdução do quadril artrodesado. Nivel de Evidência III, estudo clinico.


OBJECTIVE: To evaluate the long-term results of seventy patients who underwent hip arthrodesis using the original technique described by Davis. METHODS: We carried out a retrospective study involving seventy patients submitted to hip arthrodesis between 1982 and 1995. The presence of symptoms involving the lumbar spine, ipsilateral knee, and contralateral hip was noted, as well as the success of the arthrodesis fusion, its positioning, and the need for conversion surgery to total hip replacement. RESULTS: The mean follow-up time was 21.6 years. A satisfactory hip fusion was found in 48 patients (85.7 percent). Lumbar spine pain was reported by 11 patients (19.6 percent) and ipsilateral knee osteoarthritis was found in four patients (7.1 percent). Discussion: Two works, with a longer follow-up time (35 and 38 years) present more prevalent symptoms involving the lumbar spine (57 percent and 62 percent ) and ipsilateral knee joint (45 percent and 57 percent), and higher conversion surgery rates (17 percent e 28 percent). CONCLUSION: hip arthrodesis by the Davis technique presents satisfactory results until the 20th year after surgery, however lumbar spine disease seems to become more prevalent over the years, and the pain in the homolateral knee suggests an association with the initial position in abduction of the hip submitted to arthrodesis. Level of Evidence: Level III clinical study.


Subject(s)
Humans , Male , Female , Adolescent , Young Adult , Middle Aged , Arthrodesis , Arthroplasty, Replacement, Hip , Arthrodesis/adverse effects , Low Back Pain/etiology , Low Back Pain , Osteoarthritis, Knee , Brazil , Time , Outcome Assessment, Health Care , Hip/surgery , Hip , Retrospective Studies
2.
Clinics ; 65(11): 1111-1114, 2010. ilus, graf, tab
Article in English | LILACS | ID: lil-571425

ABSTRACT

OBJECTIVES: Our primary aim was to compare the long-term survivorship rates and the rates of successful osseointegration between two different types of uncemented acetabular components. INTRODUCTION: Two types of alloys have primarily been used for the manufacture of the uncemented acetabular components: titanium-based and cobalt-based alloys. A titanium-based alloy appears to be more effective with regard to interface stress transfer to the host bone because of its lower elastic modulus relative to a cobalt-based alloy. This supposed mechanical advantage of a titanium-based alloy component motivated this comparative study. METHODS: Two uncemented acetabular components, a porous-coated acetabulum and a Plasmacup®, were compared with a focus on long-term prosthesis survivorship and the development of acetabular osseointegration. Five radiographic signs of osseointegration were evaluated at the last follow-up appointment: (1) absence of radiolucent lines, (2) presence of a superolateral buttress, (3) medial stress-shielding, (4) radial trabeculae, and (5) an inferomedial buttress. We considered the presence of any three of these radiographic signs, in the absence of acetabular dislocation or symptoms, to be indicative of successful acetabular osseointegration. RESULTS: Among 70 patients implanted with the porous-coated acetabulum, 80 percent achieved osseointegration over a mean follow-up time of 11.9 years versus 75.3 percent of the 73 patients who received a Plasmacup insert over a mean of 10.7 years. Prosthesis survivorship rates were not different between the two groups. Revision surgery due to mild or severe acetabular osteolysis, polyethylene wear, and aseptic loosening occurred in eight patients (11.4 percent) with a PCA versus nine (12.3 percent) with a Plasmacup. CONCLUSIONS: We conclude that, during the first ten years after surgery, there is no significant difference between these two types of uncemented cups with regard to either prosthesis survivorship or successful osseointegration.


Subject(s)
Adult , Aged , Female , Humans , Male , Middle Aged , Young Adult , Acetabulum/surgery , Equipment Failure Analysis , Hip Prosthesis , Osseointegration , Follow-Up Studies , Kaplan-Meier Estimate , Polyethylene , Prosthesis Design/methods , Reoperation , Retrospective Studies , Time Factors , Treatment Outcome
3.
Rev. bras. ortop ; 31(1): 54-66, jan. 1996. tab, ilus
Article in Portuguese | LILACS | ID: lil-240275

ABSTRACT

Os autores fizeram levantamento de 21 prontuários de pacientes com paralisia cerebral, que tinham as deformidades da tríplice flexão dos membros inferiores e que tinham sido operadas por uma nova proposta de técnica, iniciada em 1975 e feita até a data. A proposta feita pelo atual Chefe do Grupo de Paralisia deste Serviço, foi a de operar concomitantemente as deformidades, fossem elas uni ou bilaterais. Foram operados 21 pacientes, que tinham 105 articulações acometidas em 35 membros inferiores, totalizando, portanto, 105 cirurgias. Os pacientes, bem como os resultados finais das operações, foram avaliados por critérios clínicos estáticos e dinâmicos e as operações quanto ao tempo cirúrgico e pelo tempo de reabilitação necessário para a total recuperação do paciente. Concluem os autores que a proposta do tratamento concomitante da tríplice flexão dos membros inferiores é excelente, dado os benefícios no ganho de tempo precioso, aliado aos bons resultados observados.


Subject(s)
Humans , Male , Female , Infant, Newborn , Infant , Child, Preschool , Child , Adolescent , Adult , Knee Joint/surgery , Tarsal Joints/surgery , Cerebral Palsy , Contracture/surgery , Hip Joint/surgery , Perna/surgery , Retrospective Studies
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