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Patterns of Short-Term and Long-Term Surgical Outcomes and Prognostic Factors for Cervical Ossification of the Posterior Longitudinal Ligament Between Anterior Cervical Corpectomy and Fusion and Posterior Laminoplasty

Authors
 Bong Ju Moon  ;  Doyoung Kim  ;  Dong Ah Shin  ;  Seong Yi  ;  Keung Nyun Kim  ;  Do Heum Yoon  ;  Yoon Ha 
Citation
 NEUROSURGICAL REVIEW, Vol.42(4) : 907-913, 2019-12 
Journal Title
 NEUROSURGICAL REVIEW 
ISSN
 0344-5607 
Issue Date
2019-12
MeSH
Adult ; Aged ; Cervical Vertebrae* ; Decompression, Surgical* ; Female ; Follow-Up Studies ; Humans ; Laminoplasty* ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Ossification of Posterior Longitudinal Ligament / surgery* ; Recovery of Function ; Spinal Fusion* ; Time Factors ; Treatment Outcome
Keywords
Anterior cervical corpectomy and fusion ; Cervical ossification of longitudinal ligament ; Laminoplasty ; Long-term outcome ; Prognostic factor
Abstract
To compare short-term and long-term surgical outcome patterns between anterior cervical corpectomy and fusion (ACCF) and laminoplasty (LP) in patients diagnosed with cervical ossification of the posterior longitudinal ligament (OPLL) and identify factors affecting surgical outcomes based on follow-up duration. During short-term follow-up period, surgical outcomes between ACCF and LP were similar. However, there were several reports that long-term surgical outcomes were superior in the ACCF compared with LP. Surgical outcomes between ACCF and LP according to follow-up period changed. This study enrolled 70 patients who underwent ACCF and 63 patients who underwent LP between 2005 and 2012. Patterns of surgical outcomes were analyzed in accordance with surgical procedures. Furthermore, these patients were divided into two subgroups in respect of follow-up duration: the short-term group (less than 48 months) and the long-term group (more than 48 months) group. Occupying ratio, type of OPLL, shape of ossified lesion, cervical sagittal alignment, grade of signal intensity on MRI, and Japanese Orthopedic Association (JOA) score were examined. Surgical outcomes of ACCF went into reverse at 48-month follow-up period. In the short-term group, JOA recovery rate had no difference between ACCF and LP. In the long-term group, the ACCF recovery rate (78.5 ± 31.0) was significantly higher than the LP recovery rate (48.4 ± 54.9) (P = 0.008). In the short-term group, old age (p = 0.011), hill shape (p = 0.013), and high grade of MRI signal intensity (p = 0.040) had negative effects on recovery rate. On the other hand, in the long-term group, LP (p = 0.021) and a high grade of MR signal intensity (p = 0.017) independently and negatively affected recovery rate. Long-term surgical outcomes of ACCF became better than those of LP at more than 48-month follow-up period. High-grade MRI signal changes and the LP surgical procedure were independent negative factors for long-term surgical outcomes in patients with OPLL. Direct decompression of the spinal cord with ACCF provides better long-term stable neurologic outcomes than LP.
Full Text
https://link.springer.com/article/10.1007%2Fs10143-018-01069-x
DOI
10.1007/s10143-018-01069-x
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Neurosurgery (신경외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Keung Nyun(김긍년)
Shin, Dong Ah(신동아) ORCID logo https://orcid.org/0000-0002-5225-4083
Yoon, Do Heum(윤도흠) ORCID logo https://orcid.org/0000-0003-1452-5724
Yi, Seong(이성)
Ha, Yoon(하윤)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/175879
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