Weight-bearing conditions alter foot shape, pg# 517
Study quantifies the effects of weight bearing on the plantar foot shape. The plantar foot shapes of 16 normal feet were obtained by an impression casting method under three weight-bearing conditions: non-weight bearing, semi-weight bearing, and full-weight bearing. Measurements and comparisons were made on the digitized foot shapes for the whole foot and selected regions. Data showed that increased weight bearing significantly increased the contact area, foot length, and foot width, while at the same time decreasing average height, arch height, and arch angle. Knowledge of the range of plantar foot shape alteration under weight bearing can aid the design and construction of comfortable and functional foot support.

Neuroprosthesis proven safe and reliable for restoring function in patients with SCI, pg# 457
Study evaluated the durability and reliability of implanted leads and electrodes that are part of an implanted upper-limb neuroprosthesis. The neuroprosthesis provides grasping and reaching functions to individuals with spinal cord injury (SCI). Twenty-seven subjects who had sustained a traumatic SCI and been implanted with an upper-limb neuroprosthesis were studied. Results indicate that the electrode, lead, and connector systems are extremely durable. Each electrode had been implanted at least three years, with a maximum implantation time of over 16 years. Only three electrode-lead failures and only one electrode infection occurred, for a survival rate of almost 99%. Electrode threshold measurements indicate that the electrode response is stable over time, with no evidence of electrode migration or continual encapsulation in any of the electrodes studied.

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Contact: Judith LaVoie
Judith@vard.org
410-962-1800 x 229
VA Research Communications Service
11-Dec-2003