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Application of intraoperative spinal ultrasonography in cervical laminoplasty.
MedLine Citation:
PMID:  23286406     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Objective To investigate the clinical value of intraoperative ultrasonography in cervical laminoplasty. Methods Thirty patients underwent cervical laminoplasty for cervical compressive myelopathy in our hospital from April 2010 to April 2012. Spinal cord compression ratio was calculated in preoperative MRI axial images for every patient. The spinal cord decompression status was evaluated by intraoperative ultrasonography during cervical laminoplasty. The pre- and post-operative Japanese Orthopaedic Association Scoring System (JOA) score was recorded, and the recovery ratios of surgery were graded using the Hirabayashi equation. The relationship between the parameters and neural recovery was explored. Results The intraoperative ultrasonography was used to evaluate the ventral compression of the spinal cord. The ultrasonographic dynamic viewings were classified into three types based on the spinal cord contact with ventral structures after decompression: Type 1, non-contact (n=2); Type 2, contact and apart (n=16); and Type 3, contact (n=12). The patients were divided into two groups: group A, showing Type 1 or 2 findings, representing satisfied decompression; and group B, showing Type 3 findings with insufficient decompression. The recovery ratio was (73.3±21.0)%(31.3%-100.0%) in group A, but decreased to (43.2±33.1)%(0-83.3%) in group B(t=3.05,p=0.005). Pearson analysis showed that the patient age(r=-0.294,p=0.122), preoperative JOA score(r=0.059,p=0.759), and spinal compression ratio(r=0.269,p=0.151) was not correlated with Hirabayashi recovery ratio. Conclusion Intraoperative ultrasonography during laminoplasty is a feasible and promising method for evaluating spinal cord decompression status and predicting the prognosis following surgery.
Authors:
Wei Yi; He Da; Tian Wei; Liu Bo
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Zhongguo yi xue ke xue yuan xue bao. Acta Academiae Medicinae Sinicae     Volume:  34     ISSN:  1000-503X     ISO Abbreviation:  Zhongguo Yi Xue Ke Xue Yuan Xue Bao     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2013-01-04     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8006230     Medline TA:  Zhongguo Yi Xue Ke Xue Yuan Xue Bao     Country:  China    
Other Details:
Languages:  eng     Pagination:  601-4     Citation Subset:  IM    
Affiliation:
Department of Spine, Beijing Jishuitan Hospital, Beijing 100035, China.
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