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Myelopathy is a disorder within the spinal cord. Compression on the spinal cord by bony projections or a displaced disk in the cervical spine are the most common causes of myelopathy. [7] Inflammation, illness, and neurodegenerative, nutritional, and vascular disorders can also contribute to myelopathy.
Congenital distal spinal muscular atrophy (cDSMA), also known as distal hereditary motor neuropathy (or neuronopathy) type VIII (dHMN8), is a hereditary medical condition characterized by muscle wasting (), particularly of distal muscles in legs and hands, and by early-onset contractures (permanent shortening of a muscle or joint) of the hip, knee, and ankle.
The ulnar nerve originates from the C8-T1 nerve roots (and occasionally carries C7 fibers which arise from the lateral cord), [5] [6] which then form part of the medial cord of the brachial plexus, and descends medial to the brachial artery, up until the insertion point of coracobrachialis muscle (middle 5 cm over the medial border of the humerus).
Sensory neuronopathy differs from the more common length dependent axonal polyneuropathies (such as diabetic sensorimotor polyneuropathy) in that the symptoms do not progress in a distal to proximal pattern (starting in the feet and progressing to the legs and hands), rather symptoms develop in a multifocal, asymmetric, and non-length dependent ...
In general, distal hereditary motor neuropathies affect the axons of distal motor neurons and are characterized by progressive weakness and atrophy of muscles of the extremities. [1] It is common for them to be called "spinal forms of Charcot-Marie-Tooth disease (CMT)", because the diseases are closely related in symptoms and genetic cause.
Hereditary neuropathy with liability to pressure palsy (HNPP) is a peripheral neuropathy, a condition that affects the nerves. [4] Pressure on the nerves can cause tingling sensations, numbness, pain, weakness, muscle atrophy and even paralysis of the affected area. In normal individuals, these symptoms disappear quickly, but in sufferers of ...
Any condition resulting in decreased peripheral sensation, proprioception, and fine motor control: Diabetes mellitus neuropathy (the most common in the U.S. today, resulting in destruction of foot and ankle joints), with Charcot joints in 1/600–700 diabetics; related to long-term high blood glucose levels. Alcoholic neuropathy; Cerebral palsy ...
Motor symptoms seem to be more predominant than sensory symptoms. [2] Symptoms of these disorders include: fatigue, pain, lack of balance, lack of feeling, lack of reflexes, and lack of sight and hearing, which result from muscle atrophy. Patients can also have high arched feet, hammer toes, foot drop, foot deformities, and scoliosis.