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Kazutoshi Hida, Yoshinobu Iwasaki, Izumi Koyanagi, Hiroshi Abe (1997)
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17th ArgoSpine Symposium Scientific Book Focus SHOWA IKA AWARD Anatomical study on the cause of postoperative C5 palsy in cervical laminoplasty Kazuaki Yamada, Shigeru Hirabayashi, Hisatsugu Kurimoto, Iwao Yamamoto, Makoto Miura, Takashi Matsushita Department of Orthopaedic Surger y, Teikyo University Hospital, Tokyo, Japan I - BACKGROUND foramen. If the muscle branch of the multifidus muscles of the Postoperative C5 palsy is one of the problems to be resolved medial branch of the posterior ramus is severely stretched lat- concerning cervical laminoplasty for cervical myelopathy. At erally during posterior surgery such as cervical laminoplasty, present, there are two theories concerning the cause of this not only the medial branch of the posterior ramus but also the palsy: 1) segmental spinal cord disorder and 2) nerve root injury. anterior and posterior rami and the anterior rootlet are simulta- However, it is unclear yet which of these is correct. neously stretched and compressed against adjacent structures. This effect is thought to be largest in the C5 nerve root because II - OBJECTIVES the running distance there is shortest and therefore the degree To prove that this palsy is caused by nerve root injury from the of free movement is most limited. In
ArgoSpine News & Journal – Springer Journals
Published: Mar 28, 2013
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