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KMID : 1145220190160030558
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Neurospine
2019 Volume.16 No. 3 p.558 ~ p.562
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Epidemiology of C5 Palsy after Cervical Spine Surgery: A 21-Center Study
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Oh Jae-Keun
Hong Jae-Taek
Kang Dong-Ho
Kim Sang-Woo
Kim Seok-Won
Kim Young-Jin
Chung Chun-Kee
Shin Jun-Jae
Yi Seong
Lee Jung-Kil
Lee Jun-Ho
Lee Chang-Hyun
Lee Ho-Jin
Chun Hyoung-Joon
Cho Dae-Chul
Cho Yong-Eun
Jin Yong-Jun
Choi Kyung-Chul
Han In-Ho
Hyun Seung-Jae
Hur Jung-Woo
Kim Ki-Jeong
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Abstract
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Objective: C5 palsy is a severe complication after cervical spine surgery, the pathophysiology of which remains unclear. This multicenter study investigated the incidence of C5 palsy following cervical spine surgery in Korea.
Methods: We conducted a retrospective multicenter study involving 21 centers from the Korean Cervical Spine Study Group. The inclusion criteria were cervical spine surgery patients between 2012 and 2016, excluding cases of neck surgery. In patients with C5 palsy, the operative methods, disease category, onset time of C5 palsy, recovery time, C5 manual muscle testing (MMT) grade, and post-C5 palsy management were analyzed.
Results: We collected 15,097 cervical spine surgery cases from 21 centers. C5 palsy occurred in 88 cases (0.58%). C5 palsy was more common in male patients (p=0.019) and after posterior approach procedures (p<0.001). C5 palsy usually occurred within 3 days after surgery (77 of 88, 87.5%) and most C5 palsy patients recovered within 6 months (51 of 88, 57.95%). Thirty C5 palsy patients (34.09%) had motor weakness, with an MMT grade≤2. Only four C5 palsy patients (4.5%) did not recover during follow-up. Posterior cervical foraminotomy was performed in 7 cases (7.95%), and steroids were used in 56 cases (63.63%). Twenty-six cases (29.55%) underwent close observation only.
Conclusion: The overall incidence of C5 palsy was relatively low (0.58%). C5 palsy was more common after posterior cervical surgery and in male patients. C5 palsy usually developed within 3 days after surgery, and more than half of patients with C5 palsy recovered within 6 months.
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KEYWORD
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C5 palsy, Cervical spine surgery, Epidemiology
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