Implications of solar flare hard X-ray "knee" spectra observed by RHESSI [PDF]
, 2003 We analyse the RHESSI photon spectra of four flares that exhibit significant deviations from power laws - i.e. changes in the "local" Hard X-ray spectral index.
A. J. Conway +20 more
core +2 more sources
A Technique of Improved Medial Meniscus Visualization by Anterior Cruciate Ligament Graft Placement in Chronic Anterior Cruciate Deficient Knees [PDF]
, 2016 It is customary to perform medial meniscus repair before anterior cruciate ligament (ACL) graft placement when undertaken as a combined procedure. However, in chronic ACL-deficient knees, intraoperative anterior tibiofemoral translation can cause the ...
Grayson, Jane E. +2 more
core +2 more sources
A quasilinear differential inclusion for viscous and rate-independent damage systems in non-smooth domains [PDF]
, 2013 This paper focuses on rate-independent damage in elastic bodies. Since the driving energy is nonconvex, solutions may have jumps as a function of time, and in this situation it is known that the classical concept of energetic solutions for rate ...
Knees, Dorothee +2 more
core +4 more sources
Hyaluronan concentration and size distribution in human knee synovial fluid: variations with age and cartilage degeneration. [PDF]
, 2016 BackgroundOne potential mechanism for early superficial cartilage wear in normal joints is alteration of the lubricant content and quality of synovial fluid.
Chen, Albert C +10 more
core +1 more source
The Lancet, 2012 Knee-replacement surgery is frequently done and highly successful. It relieves pain and improves knee function in people with advanced arthritis of the joint. The most common indication for the procedure is osteoarthritis. We review the epidemiology of and risk factors for knee replacement.
Carr, Andrew J. +6 more
openaire +5 more sources
Quasi Optimal Gait of a Biped Robot with a Rolling Knee Kinematic [PDF]
, 2011 In this paper, we address the problem of optimization of trajectories for a new class of biped robot. The knees of this biped are similar as the anthropomorphic one and have a rolling contact between the femur and the tibia.
ABBA, Gabriel +2 more
core +5 more sources
Infection and Drug Resistance, 2021 Hui-Ming Peng,1 Zong-Ke Zhou,2 Fei Wang,3 Shi-Gui Yan,4 Peng Xu,5 Xi-Fu Shang,6 Jia Zheng,7 Qing-Sheng Zhu,8 Li Cao,9 Xi-Sheng Weng1 1Department of Orthopedics, Peking Union Medical College Hospital, CAMS & PUMC, Beijing, 100730, People’s Republic of ...
Peng HM +9 more
doaj
Bone & Joint Open, 2023 Aims: Tenosynovial giant cell tumour (TGCT) is a rare benign tumour of the musculoskeletal system. Surgical management is fraught with challenges due to high recurrence rates. The aim of this study was to describe surgical treatment and evaluate surgical
Raymond G. Kim +4 more
doaj +1 more source
Histological Analysis of Failed Cartilage Repair after Marrow Stimulation for the Treatment of Large Cartilage Defect in Medial Compartmental Osteoarthritis of the Knee [PDF]
, 2013 Bone marrow-stimulating techniques such as microfracture and subchondral drilling are valuable treatments for full-thickness cartilage defects. However, marrow stimulation-derived reparative tissues are not histologically well-documented in human ...
Abe, Nobuhiro +5 more
core +1 more source
Influence of frictions on gait optimization of a biped robot with an anthropomorphic knee [PDF]
, 2013 This paper presents the energy consumption of a biped robot with a new modelled structure of knees which is called rolling knee (RK). The dynamic model, the actuators and the friction coefficients of the gear box are known. The optimal energy consumption
ABBA, Gabriel +2 more
core +5 more sources