lipoma arborescens, also known as villous lipomatous transformation of synovium is an unusual fatty lesion of joint. this disorder is characterized by a diffuse increase in the quantity of subsynovial fat in supra-patellar region which bulges the overlying synovial lining and produces a villous architecture. hereby we report a case of lipoma arborescens in an eleven year old boy with a history ...

Unexpected sudden perturbations challenge postural equilibrium and require reactive compensation. This study aimed to assess interaction effects of the direction, displacement and velocity of perturbations on electromyographic (EMG) activity, centre of pressure (COP) displacement and joint kinematics to detect neuromuscular characteristics (phasic and segmental) and kinematic strategies of comp...

STUDY DESIGN A cross-sectional study. OBJECTIVE To evaluate the segmental instability of wedging segments using dynamic films and the impact of osteophyte formation on segmental motion in degenerative lumbar scoliosis (DLS). SUMMARY OF BACKGROUND DATA Evaluation of segmental instability in DLS is essential for spinal surgery to make the decision "fusion or not fusion." Some previous studies...

Objectives Ultrasonography (US) is a fast, available and low-cost imaging tool used for detecting knee synovitis. Our aims were to assess the relationship between US and histology findings in appraising levels of inflammation and vascularity in the knee joint in subjects with inflammatory arthropathies; to determine whether differences exist in the appraisal between varying knee compartments an...

Crystal blockages of tunnel drainage systems severely undermine the lining structure and operation safety. In order to reduce risk crystal systems, distribution highway defects was identified through a field survey, indoor test, literature analysis, an optimization method structures proposed. The research suggested following: (1) Lining water leakage construction joint were most common in syste...

Current understanding of how muscles coordinate walking in humans is derived from analyses of body motion, ground reaction force and EMG measurements. This is Part I of a two-part review that emphasizes how muscle-driven dynamics-based simulations assist in the understanding of individual muscle function in walking, especially the causal relationships between muscle force generation and walking...

PURPOSE The authors investigated the effect of lumbar facet tropism (FT) on intervertebral disc degeneration (DD), facet joint degeneration (FJD), and segmental translational motion. MATERIALS AND METHODS Using kinetic MRI (KMRI), lumbar FT, which was defined as a difference in symmetry of more than 7 degrees between the orientations of the facet joints, was investigated in 900 functional spi...

Investigating fire effects is a continuing endeavour in the research and practice communities concerned with design safety of shield tunnels. This paper aims to provide comprehensive model for assessment structural tunnel segmental ring exposed fire. A thermo-mechanical assembled structure developed basis holistic analysis by incorporating lining segments longitudinal joints, as well improved p...

Proteoglycan-4 (Prg4) protects synovial joints from arthropathic changes by mechanisms that are incompletely understood. Parathyroid hormone (PTH), known for its anabolic actions in bone, increases Prg4 expression and has been reported to inhibit articular cartilage degeneration in arthropathic joints. To investigate the effect of Prg4 and PTH on articular cartilage, 16-week-old Prg4 mutant and...