Based on this study, distal femoral osteotomy allowed the resumption of physical activities for individuals with symptomatic osteoarthritis of the lateral compartment of the knee, resulting in improvements in clinical conditions and, consequently, in their daily working and recreational activities.

No abstract

OBJETIVO: Avaliar a amplitude de movimentos (ADM) do joelho após seis meses de pós-operatório de artroplastia total, comparando-a com o seu valor pré-operatório. MATERIAL E MÉTODOS: Foi analisada a amplitude de movimento de 80 artroplastias, com acompanhamento pós-operatório médio de 21,9 meses. RESULTADO: Não houve diferença significativa entre as médias pré e pós-operatória, de extensão (p=0,09) e flexão (p=0,47). Subdividindo os pacientes em dois grupos, naqueles com flexão pré-operatória menor ou igual a 90° (n=17) observou-se aumento significativo da flexão (p=0,000037). Naqueles com flexão pré-operatória maior ou igual a 120° (n=31) ocorreu diminuição significativa da flexão (p=0,000068). Quatro pacientes foram submetidos à manipulação, em média com 2,1 meses de pós-operatório. A média de flexão antes da manipulação e após seis meses dessa foi significativamente diferente (p=0,0068). Já as médias de flexão pré-operatória e após seis meses de pós-operatório foram semelhantes (p=0,28). CONCLUSÃO: A flexão pré-operatória influencia de forma significativa a flexão após artroplastia total do joelho. Sua medida fornece ao cirurgião bom parâmetro para prevê-la.

I - I: high-powered prospective randomized trial.

To evaluate whether, by using an arthropump (irrigation equipment with pressure sensor), pneumatic tourniquet use could interfere with the duration of surgery, recovery of movement and joint volume in patients who underwent knee videoarthroscopy for partial meniscectomy. Methods: 103 patients divided randomly into two groups regarding use or nonuse of a pneumatic tourniquet were evaluated in five different centers by seven different surgeons. The variables were evaluated during the surgery and seven days after the operation. Results: No statistically significant differences were found among any of the variables studied. Conclusion: There are no reasons that would either justify or discredit tourniquet use in this specific situation.

No abstract

Carvalho Jr. lh et al. 40rev assoC Med bras 2015; 61(1):40-43

Geomorphological features and sedimentary characteristics are analized from five sets of shallow sediment cores collected in lakes in the Fildes Peninsula, King George Island. The geomorphology of the area was observed and sediments samples were obtained at field activities during the XXXI Brazilian Antarctic Operation (March-April/2013). Biogeochemical characteristics, physical parameters, mineralogical composition, particle size distribution, macroscopic characteristics of the sediments and satellite images were analized. Preliminary results indicate climatic and environmental changes in north-south transect of the peninsula. The mineralogical composition is associated with geological structure of the area, where basaltic rocks predominate. The particle size variation reflects different sediment source environments. Macroscopic analysis and mineralogical composition variation reflect the action of weathering along the peninsula. The sediments also have potential mineralization and subsequent release of greenhouse gases. A preliminary map of the classification of the lakes is presented. In addition, it was identified that wetland sediment presents methane production rates (CH4) about 40 times larger and more sensitive to the effect of global warming compared to lake sediment. Subpolar aquatic ecosystems sediments from Maritime Antarctica can be a preferential site for the effects of climate variability.