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Rats are commonly used to study peripheral nerve repair and grafting. The traditional footprint method to assess functional recovery is messy, indirect, and not useful when contractures develop in the animal model. The aim of the present study was to establish an accurate, reproducible, but simple, method to assess dynamic limb function. The basic(More)
There has been considerable disagreement in descriptions of the SMAS. Fresh cadaver dissection, combining anatomic dissection done with the aid of the operating microscope and histologic cross section of facial tissues, was performed in 24 facial halves. Histologic preparation was made on tissue macrosections, each 10 cm in length. Consistent findings(More)
Carbonic anhydrase (CA) and cholinesterase (CE) histochemical staining of rabbit spinal nerve roots and dorsal root ganglia demonstrated that among the reactive myelinated axons, with minor exceptions, sensory axons were CA positive and CE negative whereas motor axons were CA negative and CE positive. The high specificity was achieved by adjusting reaction(More)
This study evaluated 2 end-to-side nerve repair techniques for ability to induce nerve sprouting and muscular recovery. Twenty-four rats underwent identical surgeries. The helicoid method of neurorrhaphy was used on the left (large epineurial window) side and the standard end-to-side (small epineurial window) repair on the right side of each rat to repair(More)
The anterior interosseous nerve syndrome (AINS) is well known. A case is presented that had electromyographic findings limited to the distribution of the anterior interosseous nerve. A small area of sensory loss and slight asymmetry of amplitudes noted on median nerve conduction studies were inconsistent with an AIN syndrome. An antecubital level partial(More)
Vibration syndrome, a clinical condition arising from chronic use of vibrating tools, is associated with a spectrum of neurovascular symptoms. To date, only its vascular pathology has been extensively studied; we sought to determine what direct neurologic injury, if any, is caused by vibration. Hindlimbs of anesthetized rats were affixed to a vibrating(More)
The nasolabial fold was analyzed by studying changes with aging in the nasolabial fold and adjacent soft-tissue features. Chronologic photographs were obtained from 19 older subjects, taken approximately every 10 years, from age 20 to their present age. In a separate phase of the study, facial portraits in repose and smiling were taken of young and old(More)
The temporal changes in transected sciatic nerves of rabbits were studied using recently developed histochemical techniques for discriminating between sensory and motor axons. A segment of the nerve was removed to inhibit spontaneous regeneration across the gap. Staining characteristics of the proximal and distal nerve stumps were studied at 1, 2, 3, 4, 9,(More)