Gait kinematics of osteoarthritic knees after intra-articular viscosupplementation: A double-blinded randomized controlled trial.

BACKGROUND: The utilization of subjective questionnaires for assessing conservative treatment in knee osteoarthritis may present challenges in identifying differences due to inadequate statistical power. Objective tools, such as three-dimensional (3D) kinematic analysis, are accurate and reproducible methods. However, no high-quality studies assessing the effects of intra-articular viscosupplementation (VS) have been published. Therefore, the objective of the study was to evaluate gait kinematics of patients with advanced knee osteoarthritis after VS. METHODS: Forty-two patients were randomized to receive either VS or saline injection (placebo). They underwent 3D kinematic gait analysis before and at 1, 6, and 12 weeks after treatment and knee angles during stance phase were determined. Patients and the healthcare team responsible for data collection, processing, and analysis were blinded to group allocation. Between-group comparisons were conducted using linear mixed models. RESULTS: Compared with placebo, the VS increased the maximum knee extension (3.2° (0.7-5.7)) and decreased the maximum knee flexion (-3.6° (-6.1 to -1.2)) on the sagittal plane at 1 week. At 6 weeks, the VS group sustained a reduced maximum knee flexion (-2.6° (-5.2 to 0.0)). On the axial plane, the VS group demonstrated an increase in maximum internal rotation at 12 weeks (3.9° (0.3 to 7.7)). The VS group exhibited reduced single-leg stance time at 1 week and increased total stance time at 12 weeks. CONCLUSIONS: VS led to short- and long-term kinematic improvements in the sagittal and axial planes, leading to a gait pattern closer to that observed in individuals with less severe osteoarthritic knees.

Análise Epidemiológica das Rupturas do Ligamento Cruzado Anterior em Pacientes Atendidos no Instituto Nacional de Tráumato-Ortopedia / Epidemiology of Anterior Cruciate Ligament Ruptures in Patients Treated at the National Institute of Orthopaedic and Trauma

A lesão do ligamento cruzado anterior permance como assunto de controvérsia no que diz respeito aos seus fatores de risco, história natural e opções de tratamento.Para elaborar estratégias de prevenção e melhoria no atendimento desses pacientes é fundamental a obtenção de informações sobre essa população

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As fraturas isoladas da diáfise femoral são tradicionalmente tratadas de forma conservadora, porém, recentemente, diversos autores têm defendido o tratamento cirúrgico. Foram avaliados 22 casos de fraturas diafisárias do fêmur em crianças, no perído entre janeiro de 1995 e dezembro de 2002. Destes 22, 16 receberam tratamento conservador

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