Pedicle screw placement accuracy: a meta-analysis

Details

Serval ID
serval:BIB_104900713A70
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Pedicle screw placement accuracy: a meta-analysis
Journal
Spine
Author(s)
Kosmopoulos  V., Schizas  C.
ISSN
1528-1159 (Electronic)
Publication state
Published
Issued date
02/2007
Volume
32
Number
3
Pages
E111-20
Notes
Journal Article
Meta-Analysis --- Old month value: Feb 1
Abstract
STUDY DESIGN: A meta-analysis of the published literature was conducted specifically looking at accuracy and the postoperative methods used for the assessment of pedicle screw placement in the human spine. OBJECTIVES: This study specifically aimed to identify postoperative methods used for pedicle screw placement assessment, including the most common method, and to report cumulative pedicle screw placement study statistics from synthesis of the published literature. SUMMARY OF BACKGROUND DATA: Safety concerns have driven specific interests in the accuracy and precision of pedicle screw placement. A large variation in reported accuracy may exist partly due to the lack of a standardized evaluation method and/or the lack of consensus to what, or in which range, is pedicle screw placement accuracy considered satisfactory. METHODS: A MEDLINE search was executed covering the span from 1966 until 2006, and references from identified papers were reviewed. An extensive database was constructed for synthesis of the identified studies. Subgroups and descriptive statistics were determined based on the type of population, in vivo or cadaveric, and separated based on whether the assistance of navigation was employed. RESULTS: In total, we report on 130 studies resulting in 37,337 total pedicle screws implanted, of which 34,107 (91.3%) were identified as accurately placed for the combined in vivo and cadaveric populations. The most common assessment method identified pedicle screw violations simply as either present or absent. Overall, the median placement accuracy for the in vivo assisted navigation subgroup (95.2%) was higher than that of the subgroup without the use of navigation (90.3%). CONCLUSIONS: Navigation does indeed provide a higher accuracy in the placement of pedicle screws for most of the subgroups presented. However, an exception is found at the thoracic levels for both the in vivo and cadaveric populations, where no advantage in the use of navigation was found.
Keywords
*Bone Screws/statistics & numerical data Cervical Vertebrae/surgery Humans Internal Fixators/statistics & numerical data Lumbar Vertebrae/surgery Orthopedic Procedures/*instrumentation/methods/statistics & numerical data Postoperative Period Thoracic Vertebrae/surgery
Pubmed
Web of science
Create date
28/01/2008 12:27
Last modification date
20/08/2019 12:37
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