background: posttraumatic and/or postsurgical knee stiff ness is one of the orthopedic complications which is difficult to be treated and can affect individual’s life negatively. the aim of this study is to investigate the results of quadricepsplasty in patients with knee stiff ness resulted from femoral fracture. materials and methods: this is a cross-sectional study on all patients with femor...

the resistant* of patesa against lateral displacement (le. the stability), was studied tinder a range of conditions in vitro, at a range of knee flexion angles. muscle forces were applied in physiological directions along the separate quadriceps muscles. normal muscle actions with constant tension showed constant patellar stability up to sixty degrees knee flexion, and then a significant increa...

For over a centmy, Dyke marsh along the Potomac River just south of Alexandria, VA, has been a favorite site for natural history studies. Despite earlier attempts at diking to create agricultural land and dredging for sand and gravel, the remaining marsh represents the last major tidal freshwater wetland on the upper Potomac River, and is now owned and maintained by the National Park Seivice as...

This article introduces the concept of monumental preservation, which the author defines as the preservation of all cultural phenomena, because from the smallest item to the greatest monument all things emanate from and reflect culture. The imperative to preserve monuments is the imperative to preserve our cultural heritage. Whether there is a moral responsibility to preserve cultural heritage ...

background :pigmented villonodularsynovitis (pvns) is characterized by the presence of inflammation and hemosiderin deposition in the synovium. two forms of pvns distinguished in the literature are diffused and localized involvements. there are controversies in the literature about the surgical management of pvns. we report our experience in the management of knee pvns at a mean follow-up of 4 ...

Introduction: There are differences in the pattern of the knee joint formation of the studied species. According to the small number of studies which focused chronologically on the avian knee histomorphogenetic events, its “morphogenetic pattern” is hard to be proposed. The present work was designed to identify the sequential events of the knee formation in the partridge embryo. Regarding to di...

The main purpose of this paper is to use a new way to extend fuzzy implications $I$ from a generalized sublattice $M$ to a bounded lattice $L$, such that the extended implications preserve many of the considered properties of fuzzy implications on $M$.Furthermore, as a special case, we investigate the extension of $(S,N)-$implications. Results indicate that the extended implications preserve ma...

 Abstract  Background: In the recent decade, many primary total knee arthroplasties have  been carried out in Iran and the number of revision cases is expected to rise with the  aging population. The aim of this study was to report the outcome of revision surgery  in the country and make a comparison between the outcome of revision and that of  the primary arthroplasty.  Methods: Retrospectivel...

  Congenital dislocation of the knee (CDK) is a rare disorder. We report the case of a 7-year-old girl with bilateral knee stiffness, marked anterior bowing of both legs, and inability to walk without aid. Radiologic investigation revealed bilateral knee joint dislocation accompanied by severe anterior bowing of both tibia proximally and posterior bowing of both femur distally, demonstrating ...