Time course of structural and functional restoration of the sciatic nerve and of skin receptors following reinnervation of the albino rat hind limb

1988 ◽  
Vol 106 (6) ◽  
pp. 1771-1775
Author(s):  
E. I. Chumasov ◽  
L. D. Enin ◽  
K. M. Svetikova ◽  
M. E. Miroshnikova
Keyword(s):  
Sciatic Nerve ◽  
Hind Limb ◽  
Time Course ◽  
Functional Restoration ◽  
Albino Rat ◽  
Skin Receptors

Egg Binding and Hind Limb Paralysis in An African Penguin – a Case Report

2009 ◽  
Vol 27 (1) ◽  
pp. 36-38 ◽  
Author(s):  
Monique Anamarie Crouch
Keyword(s):  
Case Report ◽  
Caesarean Section ◽  
Sciatic Nerve ◽  
Hind Limb ◽  
Kidney Tissue ◽  
Physical Rehabilitation ◽  
Rehabilitation Programme ◽  
Rehabilitation Therapy ◽  
African Penguin ◽  
Hind Limb Paralysis

This case report assesses the role acupuncture played in the rehabilitation therapy of an African penguin with bilateral hind limb paresis and paralysis following egg binding and a caesarean section. Egg binding is the failure of the oviduct to pass the egg down into the cloaca. In avian species the sciatic nerve runs through the middle of the kidney. Swelling of the kidney tissue due to the pressure exerted by the retained egg will cause pressure on the sciatic nerve which may lead to hind limb paresis/paralysis. Acupuncture was used to relieve any muscle, joint or nerve pain and to attempt to stimulate recovery of the sciatic nerve. Acupuncture was incorporated into a fairly intensive physical rehabilitation programme to help the penguin to walk again so that it could be re-introduced back into the sanctuary's captive colony.

scholarly journals Progression of prion infectivity in asymptomatic cattle after oral bovine spongiform encephalopathy challenge

2007 ◽  
Vol 88 (4) ◽  
pp. 1379-1383 ◽  
Author(s):  
Juan Carlos Espinosa ◽  
Mónica Morales ◽  
Joaquín Castilla ◽  
Mark Rogers ◽  
Juan María Torres
Keyword(s):  
Skeletal Muscle ◽  
Nervous System ◽  
Food Safety ◽  
Sciatic Nerve ◽  
Time Course ◽  
Peyer's Patches ◽  
Spongiform Encephalopathy ◽  
Peyer’S Patches ◽  
Time Points ◽  
Prion Infectivity

The presence of BSE prion infectivity in asymptomatic cattle and its tissue distribution are important concerns for both human and veterinary health and food safety. In this work, a collection of tissues from asymptomatic cattle challenged orally with BSE and culled at 20, 24, 27, 30 and 33 months have been used to inoculate intracerebrally BoPrP-Tg110 mice expressing bovine PrP to assess their infectivity. Results demonstrate that BSE infectivity in asymptomatic cattle is essentially restricted to the nervous system, Peyer's patches and tonsils, as reported previously for terminally BSE-diseased cattle. BSE infectivity was detectable in Peyer's patches and tonsils at all time points analysed, but infectivity in nervous tissues (brainstem and sciatic nerve) was only detectable after 27 months from inoculation. Infectivity in brainstem increased markedly at 33 months after inoculation. All other investigated tissues or fluids (spleen, skeletal muscle, blood and urine) revealed no detectable infectivity throughout the time course studied.

Effect of pH of Bupivacaine on Duration of Repeated Sciatic Nerve Blocks in the Albino Rat

1991 ◽  
Vol 72 (6) ◽  
pp. 773???778 ◽  
Author(s):  
Carol E. Baker ◽  
R. Lee Berry ◽  
Robert C. Elston
Keyword(s):  
Sciatic Nerve ◽  
Nerve Blocks ◽  
Albino Rat ◽  
Effect Of Ph

scholarly journals Sciatic Nerve Injection Palsy in a Dog: Electrodiagnostic Testing and Microsurgical Treatment

2018 ◽  
Vol 46 ◽  
pp. 4
Author(s):  
Ana Carolina Mortari ◽  
Juliany Gomes Quitzan ◽  
Claudia Valéria Seullner Brandão ◽  
Sheila Canevese Rahal
Keyword(s):  
Sciatic Nerve ◽  
Nerve Injury ◽  
Muscle Atrophy ◽  
Action Potentials ◽  
Hind Limb ◽  
Present Report ◽  
Muscle Action ◽  
Electrophysiologic Testing ◽  
Compound Muscle Action Potentials ◽  
The Right

Background: Iatrogenic damage to the ischiatic nerve is considered uncommon and may cause dysfunction with variable clinical signs dependent on type and severity of injury. Due to important role of this nerve in locomotion and weightbearing limb, a poor prognosis for recovery may be observed in many cases. Electromyography analysis may suggest the neuroanatomic localization, diagnosis information, and severity of lesion to determine better therapeutic intervention. Therefore, the aim of this report is to describe the possible cause, diagnosis and treatment of a postinjection ischiatic nerve injury in a dog with complete recovery.Case: A 3-year-old neutered male dachshund dog was referred to the Veterinary Hospital due to inability to weight support in the right hind limb after diminazene diaceturate intramuscular injection. The gait evaluation showed dropped-hock and knuckling into the digits of the right hind limb and neurologic examination revealed moderate muscle atrophy below tofemorotibial joint of the right hind limb with sensory analgesia (superficial and deep) on the lateral, dorsal, and plantar surfaces, absent patellar reflex, and proprioceptive deficit. Electrophysiologic testing was done under general anesthesia in a 2-channel Nicolet Compass Meridian apparatus. Absence of compound muscle action potentials after right fibular and tibial nerve stimulations, and abnormal spontaneous activity in cranial tibial, gastrocnemius and deep digital extensor muscles were observed. A diagnosis of moderate/severe axonotmesis of sciatic nerve was achieved. Under microscope magnification, all adherent adjacent tissue and epineural sheat were removed. Due this, a small epineural window was created. On neurological examination performed 30 days after surgery, complete recovery of sensitivity of the right hind limb, and normal proprioception were observed. The muscle atrophy was also noted to have improved.Discussion: The ischiatic nerve mechanisms of injury include direct needle trauma, the drug or vehicle used for injection, or secondary constriction by scar, factors that may be associated to damage nerve observed in the present case. During a sciatic nerve injection, the combination of intrafascicular placement of a needle and high-pressure injection may cause severe fascicular damage and persistent neurologic deficits. In the present case, damage to the nerve probably was not caused bythe injection needle, but due to injection agent. Chemical irritation or toxic reaction to the agent may cause different degrees of nerve injury. The electrophysiologic testing is an important tool for determining alteration of function and integrity of the axonal motor unit. In the present report, the electrophysiologic testing showed denervation potentials in the musclesinnervated by the sciatic nerve (positive waves and fibrillation potentials), and the absence of compound muscle action potentials was indicative of severe axonal damage of the right ischiatic nerve. In human patients with postinjection ischiatic nerve injury, early surgical treatment with neurolysis or resection and anastomosis are the procedures recommended. In the present report, external neurolysis and epineural window were used showing excellent functional results. The epineural window was performed due to adherence of tissue and scar surrounding the nerve, permitting neural decompression.Keywords: axonotmesis, neurophysiology, neurolysis, dogs.

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