PMID- 36626180
OWN - NLM
STAT- Publisher
LR  - 20231221
IS  - 2192-5682 (Print)
IS  - 2192-5682 (Linking)
DP  - 2023 Jan 10
TI  - Accuracy of Realigned K-line for Predicting Surgical Outcomes After Laminoplasty 
      in Patients With Degenerative Cervical Myelopathy.
PG  - 21925682221150908
LID - 10.1177/21925682221150908 [doi]
AB  - STUDY DESIGN: A prospective cohort study. OBJECTIVES: To report a new index, the 
      realigned K-line, for predicting surgical outcomes after laminoplasty in patients 
      with degenerative cervical myelopathy (DCM). METHODS: One hundred twenty-eight 
      patients with DCM undergoing laminoplasty were enrolled from January 2018 to 
      April 2021 in our department. A realigned K-line was defined as the line 
      connecting the midpoints of the spinal cord between C2 and C7 on realigned 
      T1-weighted magnetic resonance imaging. The minimum interval between the anterior 
      compression factors of the spinal cord and the realigned K-line (INT(rea)), and 
      the modified K-line (INT(mod)) were measured. A logistic regression analysis was 
      performed to identify factors associated with unsatisfactory surgical outcomes. 
      The receiver operating characteristic (ROC) curve and the area under the curve 
      (AUC) was applied to evaluate the reliability of the multivariate logistic 
      regression model. RESULTS: Univariate analysis showed that the score for the 
      bladder function section of the Japanese Orthopedic Association Cervical 
      Myelopathy Evaluation Questionnaire, numeric rating scale scores for arm pain, 
      and INT(rea) might be related to the Japanese Orthopaedic Association (JOA) 
      recovery rate (RR) not achieving the minimal clinically important difference 
      (MCID) (P < .05). Only INT(rea) (odds ratio = .744, P < .05) was an independent 
      preoperative factor related to the JOA RR not achieving the MCID (area under the 
      curve, .743). A cutoff of 5.0 mm for INT(rea) had an accuracy of 71.9% and 
      specificity of 80.3% for predicting the JOA RR not achieving the MCID. 
      CONCLUSIONS: INT(rea) is an independent preoperative risk factor related to the 
      JOA RR not achieving the MCID in patients with DCM. A cutoff point of 5.0 mm is 
      most appropriate for alerting spine surgeons to a high likelihood of the JOA RR 
      not achieving the MCID.
FAU - Duan, Qifei
AU  - Duan Q
AUID- ORCID: 0000-0001-9447-1222
AD  - The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 
      China.
AD  - Department of Spine, Guangdong Provincial People's Hospital (Guangdong Academy of 
      Medical Sciences), Southern Medical University, Guangzhou, China.
FAU - Liang, Guoyan
AU  - Liang G
AD  - Department of Spine, Guangdong Provincial People's Hospital (Guangdong Academy of 
      Medical Sciences), Southern Medical University, Guangzhou, China.
FAU - Chen, Chong
AU  - Chen C
AD  - Department of Spine, Guangdong Provincial People's Hospital (Guangdong Academy of 
      Medical Sciences), Southern Medical University, Guangzhou, China.
FAU - Ye, Yongyu
AU  - Ye Y
AD  - Department of Spine, Guangdong Provincial People's Hospital (Guangdong Academy of 
      Medical Sciences), Southern Medical University, Guangzhou, China.
FAU - Zheng, Xiaoqing
AU  - Zheng X
AD  - Department of Spine, Guangdong Provincial People's Hospital (Guangdong Academy of 
      Medical Sciences), Southern Medical University, Guangzhou, China.
FAU - Liang, Changxiang
AU  - Liang C
AD  - Department of Spine, Guangdong Provincial People's Hospital (Guangdong Academy of 
      Medical Sciences), Southern Medical University, Guangzhou, China.
FAU - Chang, Yunbing
AU  - Chang Y
AD  - The Second School of Clinical Medicine, Southern Medical University, Guangzhou, 
      China.
AD  - Department of Spine, Guangdong Provincial People's Hospital (Guangdong Academy of 
      Medical Sciences), Southern Medical University, Guangzhou, China.
LA  - eng
PT  - Journal Article
DEP - 20230110
PL  - England
TA  - Global Spine J
JT  - Global spine journal
JID - 101596156
OTO - NOTNLM
OT  - anterior compression of the spinal cord
OT  - degenerative cervical myelopathy
OT  - laminoplasty
OT  - modified k-line
OT  - postoperative clinical outcomes
OT  - realigned k-line
EDAT- 2023/01/11 06:00
MHDA- 2023/01/11 06:00
CRDT- 2023/01/10 11:33
PHST- 2023/01/11 06:00 [pubmed]
PHST- 2023/01/11 06:00 [medline]
PHST- 2023/01/10 11:33 [entrez]
AID - 10.1177/21925682221150908 [doi]
PST - aheadofprint
SO  - Global Spine J. 2023 Jan 10:21925682221150908. doi: 10.1177/21925682221150908.