background:   primary bone lymphoma or non-hodgkin lymphoma of bone is a rare disease. there are only a few case series of stage ie of this condition in medical literature. the aim of this study is to determine the rate of survival   for stage ie after combined modality treatment, the rate of local recurrence, and the results of limb salvage in cases   of local recurrence.     methods:   we col...

background: massive bone allograft is an option in cases of limb preservation and reconstruction after massive benign and malignant bone tumor resection. the purpose of this study was to analyze the outcome of these procedures at imam reza hospital, mashhad university of medical sciences. methods: in this study, 113 cases have been presented. eleven cases were excluded (patients has a traumatic...

normal axial alignment restoration in lower extremities is crucial for surgeons performing reconstructive surgeries. since reference normal values of axial alignment are affected by age, sex, and ethical issues, we tried to scrutinize these parameters in iranian adults and compare them with normal values in literatures. through a cross-sectional design, standing axial alignment views of lower e...

Artificial sensation via electrical or optical stimulation of brain sensory areas offers a promising treatment for sensory deficits. For a brain-machine-brain interface, such artificial sensation conveys feedback signals from a sensorized prosthetic limb. The ways neural tissue can be stimulated to evoke artificial sensation and the parameter space of such stimulation, however, remain largely u...

Although visual perception is dominant on motor perception, control and learning, auditory information can enhance and modulate perceptual as well as motor processes in a multifaceted manner. During last decades new methods of auditory augmentation had been developed with movement sonification as one of the most recent approaches expanding auditory movement information also to usually mute phas...

The aim of this paper is to propose an exploratory study on simple, accurate and 19 computationally efficient movement classification technique for prosthetic hand application. The 20 surface myoelectric signals were acquired from 2 muscles – Flexor Carpi Ulnaris and Extensor Carpi 21 Radialis of 4 normal-limb subjects. These signals were segmented and the features extracted using a 22 new comb...

Since the original demonstration that electrical activity generated by ensembles of cortical neurons can be employed directly to control a robotic manipulator, research on brain-machine interfaces (BMIs) has experienced an impressive growth. Today BMIs designed for both experimental and clinical studies can translate raw neuronal signals into motor commands that reproduce arm reaching and hand ...

Only few artificial limbs for total upper arm replacement includes other active joints than those of hand and elbow. The main cause is the difficulty to the set up the limb command system. Some components of artificial upper arm have been recently designed and built by the our research group. The full arm consists of a two active axes shoulder and a single axis elbow, plus a commercial hand. Th...

1 Dept. of Veterans Affairs 2 Dept. of Rehabilitation Medicine 3 Dept. of Electrical Engineering 1660 S. Columbian Way MS 151 University of Washington University of Washington Seattle, WA 98108 USA Seattle, WA 98195 Seattle, WA 98195 [email protected] [email protected] [email protected] Abstract This paper reports on the design of an artificial tendon intended for u...