axonotmesis การใช้

• According to NCV study, in axonotmesis there is an absence of distal sensory-motor responses.
• In Seddon's Classification, nerve injury is described as either neurapraxia, axonotmesis, or neurotmesis.
• Axonotmesis is classified by an interruption of the axons, but a preservation of the surrounding connective tissues around the axon.
• The second classification of the Seddon system is referred to as axonotmesis which is a more severe case of peripheral nerve injury.
• The second through fourth degrees are dependent on the variance of axon discontinuity and are classified under Seddon s classification of axonotmesis.
• Neurapraxia results in temporary damage to the nerve conduction has been restored; otherwise, the injury would be classified as axonotmesis or neurotmesis.
• Loss in both motor and sensory spines is more complete with axonotmesis than with neurapraxia, and recovery occurs only through regenerations of the axons, a process requiring time.
• The table at the right details the forms ( neurapraxia, axonotmesis and neurotmesis ) and degrees of nerve injury that occur as a result of exposure to various temperatures.
• Axonotmesis is usually the result of a more severe crush or contusion than neurapraxia, but can also occur when the nerve is stretched ( without damage to the epineurium ).
• Cryoneurolysis treatments which utilize nitrous oxide ( boiling point of-88.5 癈 ) as the coolant fall in the range of an axonotmesis injury, or 2nd degree injury according to the Sunderland classification system.
• Axonotmesis involves loss of the relative continuity of the axon and its covering of myelin, but preservation of the connective tissue framework of the nerve ( the encapsulating tissue, the epineurium and perineurium, are preserved ).