When lying supine, due to the reaction force from mattress acting mostly through heel, an external knee-extension joint-torque is induced that keeps knee fully extended. This torque becomes zero if feet are hung over end of support. study investigated, in patients with knee-osteoarthritis (knee-OA) who routinely sleep whether a change such sleeping position would ameliorate pain and associated ...

Contemporary posterior cruciate-retaining total knee designs have provided pain relief and improved knee function but have failed to reproduce the kinematics and stability of the normal nonarthritic knee. The Medial Pivot total knee design features a near constant radius of curvature of the femoral component. The tibial surface is highly congruent and asymmetric, permitting a medial pivot motio...

BACKGROUND Patients with knee osteoarthritis (OA) report knee pain, limitation in physical activities and low quality of life. The two primary treatments for knee OA are non-surgical treatment (e.g., exercise) and surgery (total knee arthroplasty (TKA)); however, national guidelines recommend non-surgical treatment to be tried prior to surgical procedures. Patients with knee OA are characterize...

background: the oxford knee score (oks) is a short patient-reported outcome instrument that measures pain and physical activity related to knee osteoarthritis. the purpose of this study is to evaluate, construct validity and consistent reliability of the persian version of the oks. methods: the case series consisted of 80 patients who were clinically diagnosed with having knee osteoarthritis. a...

hysteretic dampers as the most practical passive control methods have improved the seismic performance of steel structures through energy dissipation induced by large inelastic deformations. among them in this paper, kbf (knee braced frames), a special form of braced frames having a diagonal brace connected to a knee element instead of beam-column joint, is investigated. in such systems, the kn...

the association of obesity and other metabolic conditions with osteoarthritis is under debate; however, a strong link between metabolic disturbances is suggested to contribute to increased incidences and progression of osteoarthritis. we examined the association of metabolic syndrome and its components with the incidence of knee osteoarthritis in iranian population. a community-based study was ...

abstract introduction: in this study the role of pge2 as an important inflammatory mediator in indomethacine and theophylline effects on joint diameter and vascular response of chronically inflamed rat knee joint to saphenous nerve stimulation was investigated. methods: inflammation was induced by intraarticular injection of 0.2 ml freund,s complete adjuvant (fca) and 3, 7, 14, 21 days post inj...

background: osteoarthritis of the knee is the most common chronic joint disease that involves middle aged and elderly persons. there are different clinical instruments to quantify the health status of patients with knee osteoarthritis and one example is the womac score that has been translated and adapted into different languages. the purpose of this study was cultural adaptation, validation an...

BACKGROUND The association between knee alignment and knee pain in knee osteoarthritis (OA) is unclear. High tibial osteotomy, a treatment option in knee OA, alters load from the affected to the unaffected compartment of the knee by correcting malalignment. This surgical procedure thus offers the possibility to study the cross-sectional and longitudinal association of alignment to pain. The aim...

INTRODUCTION Osteoarthritis of the knee affects millions of people. Elastic knee sleeves aim at relieving symptoms. While symptomatic improvements have been demonstrated as a consequence of elastic knee sleeves, evidence for biomechanical alterations only exists for the sagittal plane. We therefore asked what effect an elastic knee sleeve would have on frontal plane gait biomechanics. METHODS...