Abstract:
:Herein is described cortical bone trajectory (CBT), a new path for pedicle screw insertion for lumbar vertebral fusion. Because the points of insertion are under the end of the inferior articular process, and because the screws are inserted toward the lateral side, there is less soft tissue development than with the conventional technique; the CBT technique therefore enables less invasive surgery than the conventional technique. However, it has some drawbacks. For example, in the original CBT approach, the points of insertion are in the vicinity of the end of the inferior articular process. Because this joint has been destroyed in many patients who have indications for intervertebral fusion surgery, it is sometimes difficult to use it as a reference point for screw insertion location. With severe lateral slippage, the screw insertion site can become significantly dislocated sideways, with possible resultant damaging to the spinal canal and/or nerve root. The CBT technique here involved inserting the screws while keeping clear of the intervertebral foramen with the assistance of side view X-ray fluoroscopy and using the end of the inferior articular process and the isthmus as points of reference for screw location.
journal_name
Orthop Surgjournal_title
Orthopaedic surgeryauthors
Iwatsuki K,Yoshimine T,Ohnishi Y,Ninomiya K,Ohkawa Tdoi
10.1111/os.12122subject
Has Abstractpub_date
2014-08-01 00:00:00pages
244-8issue
3eissn
1757-7853issn
1757-7861journal_volume
6pub_type
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journal_title:Orthopaedic surgery
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更新日期:2009-02-01 00:00:00
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更新日期:2009-05-01 00:00:00
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更新日期:2018-08-01 00:00:00
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更新日期:2020-06-01 00:00:00
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更新日期:2017-08-01 00:00:00
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更新日期:2017-05-01 00:00:00
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pub_type: 杂志文章,随机对照试验
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更新日期:2020-04-01 00:00:00
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更新日期:2020-12-01 00:00:00
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更新日期:2019-04-01 00:00:00