Document Detail


Cervical range of motion and alignment after laminoplasty preserving or reattaching the semispinalis cervicis inserted into axis.
MedLine Citation:
PMID:  18046169     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
STUDY DESIGN: A radiographic study in 111 patients using radiographs was conducted. OBJECTIVE: To clarify whether the modified laminoplasty with C3 laminectomy preserving the semispinalis cervicis (SSC) inserted into C2 could maintain the postopertive range of motion (ROM) and sagittal alignment compared with conventional C3-C7 laminoplasty reattaching the muscle to C2. SUMMARY OF BACKGROUND DATA: Intraoperative injury of the SSC is relevant to the significant loss of ROM and the malalignment after laminoplasty. To expose the C3 lamina, however, the SSC inserted into C2 could not be preserved in conventional C3-C7 laminoplasty. METHODS: The ROM and sagittal alignment of 70 patients (group A) (52 men, 18 women, mean age 59 y, mean follow-up period 1 y and 7 mo) with C4-C7 laminoplasty with C3 laminectomy were compared with those of 41 patients (group B) (28 men, 13 women, mean age 59 y, mean follow-up period 2 y and 6 mo) with C3-C7 laminoplasty using radiographs of the cervical spine. RESULTS: Regarding C2-C7 ROM, the postoperative ROM was larger (P=0.003) and the decrease rate of ROM was smaller (P=0.0006), and decreased ROM in extension was smaller (P<0.0001) in group A. Regarding O-C2 ROM, the increased ROM was smaller (P=0.043) and increased ROM in extension was smaller (P=0.001) in group A. Regarding O-C7 ROM, the postoperative ROM was larger (P=0.029) in group A. Regarding the cervical alignment, the increased lordotic angle at O-C2 was smaller (P=0.046) in group A. CONCLUSIONS: This modified laminoplasty preserving the SSC inserted into C2 is an effective procedure for maintaining postoperative ROM, especially in extension, and sagittal alignment of the upper cervical spine well.
Authors:
Kazunari Takeuchi; Toru Yokoyama; Atsushi Ono; Takuya Numasawa; Kanichiro Wada; Gentaro Kumagai; Junji Ito; Kazumasa Ueyama; Satoshi Toh
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Journal of spinal disorders & techniques     Volume:  20     ISSN:  1536-0652     ISO Abbreviation:  J Spinal Disord Tech     Publication Date:  2007 Dec 
Date Detail:
Created Date:  2007-11-29     Completed Date:  2008-02-25     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101140323     Medline TA:  J Spinal Disord Tech     Country:  United States    
Other Details:
Languages:  eng     Pagination:  571-6     Citation Subset:  IM    
Affiliation:
Department of Orthopaedic Surgery, Hirosaki University School of Medicine, Japan. naritake03@ybb.ne.jp
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MeSH Terms
Descriptor/Qualifier:
Cervical Vertebrae / physiopathology*,  radiography,  surgery*
Female
Follow-Up Studies
Humans
Laminectomy / methods*
Male
Middle Aged
Neck Muscles / surgery*
Range of Motion, Articular
Treatment Outcome

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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