Accuracy And Safety of Trans Pedicular Screw Fixation of The Sub-axial Cervical Spine Using A Triad- Dependent Technique
NCT ID: NCT05855642
Last Updated: 2023-05-11
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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UNKNOWN
20 participants
OBSERVATIONAL
2023-06-01
2024-06-01
Brief Summary
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Detailed Description
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Although a number of studies have evaluated the morphometric of cervical pedicles to support accurate placement of pedicle screws , the results are inconclusive. Therefore, several techniques using lateral fluoroscopy , pedicle axis view by oblique fluoroscopy , laminoframinotomy and computer-assisted navigation systems for CPS insertion have been advocated. Determining an appropriate entry point for screw insertion as well as a proper trajectory angle of the screw on the axial plane is important for successful pedicle screw placement. Here, we present our method using a fashioned triad- dependent technique (TDT) which is a combination of three methods 1-preoperative planning of the selected pedicle using 3-diamentional multi-slice CT to measure pedicle transverse angle (PTA) , pedicle outer diameter(POD)and pedicle trajectory -contralateral lamina angle 2-AP and oblique fluoroscopy to determine pedicle entry point (PEP), parallelism to vertebral end plate and 4 direction cortical violation (medial, lateral, superior, inferior) 3-interlaminar confirmatory key hole for tactile cue of medial ,superior, and inferior borders of the pedicle and related nerve root to evaluate the accuracy and safety of pedicle screw placement in patients with sub axial cervical spine disorders treated using our method.
Conditions
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Study Design
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CASE_ONLY
PROSPECTIVE
Study Groups
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Patients
All patients presented with degenerative or traumatic cervical spine matched the inclusion criteria will enrolled in our study from April 2023 to April 2024.
No interventions assigned to this group
Eligibility Criteria
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Inclusion Criteria
2. degenerative cervical spine disorders necessitating cervical fusion
Exclusion Criteria
2. scoliotic deformity of the cervical spine
3. sever osteoporosis
4. congenital malformation of the pedicle.
ALL
No
Sponsors
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Assiut University
OTHER
Responsible Party
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Mahmoud Abdelrahman Saleh El Attar
principal investigator
Central Contacts
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References
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Kotani Y, Cunningham BW, Abumi K, McAfee PC. Biomechanical analysis of cervical stabilization systems. An assessment of transpedicular screw fixation in the cervical spine. Spine (Phila Pa 1976). 1994 Nov 15;19(22):2529-39. doi: 10.1097/00007632-199411001-00007.
Jones EL, Heller JG, Silcox DH, Hutton WC. Cervical pedicle screws versus lateral mass screws. Anatomic feasibility and biomechanical comparison. Spine (Phila Pa 1976). 1997 May 1;22(9):977-82. doi: 10.1097/00007632-199705010-00009.
Karaikovic EE, Daubs MD, Madsen RW, Gaines RW Jr. Morphologic characteristics of human cervical pedicles. Spine (Phila Pa 1976). 1997 Mar 1;22(5):493-500. doi: 10.1097/00007632-199703010-00005.
Ludwig SC, Kramer DL, Vaccaro AR, Albert TJ. Transpedicle screw fixation of the cervical spine. Clin Orthop Relat Res. 1999 Feb;(359):77-88. doi: 10.1097/00003086-199902000-00009.
Bredow J, Beyer F, Oppermann J, Kraus B, Meyer C, Stein G, Eysel P, Koy T. A novel classification of screw placement accuracy in the cervical spine. Technol Health Care. 2016 Nov 14;24(6):919-925. doi: 10.3233/THC-161246.
Aoude AA, Fortin M, Figueiredo R, Jarzem P, Ouellet J, Weber MH. Methods to determine pedicle screw placement accuracy in spine surgery: a systematic review. Eur Spine J. 2015 May;24(5):990-1004. doi: 10.1007/s00586-015-3853-x. Epub 2015 Mar 7.
Jo DJ, Seo EM, Kim KT, Kim SM, Lee SH. Cervical pedicle screw insertion using the technique with direct exposure of the pedicle by laminoforaminotomy. J Korean Neurosurg Soc. 2012 Nov;52(5):459-65. doi: 10.3340/jkns.2012.52.5.459. Epub 2012 Nov 30.
Yukawa Y, Kato F, Ito K, Horie Y, Hida T, Nakashima H, Machino M. Placement and complications of cervical pedicle screws in 144 cervical trauma patients using pedicle axis view techniques by fluoroscope. Eur Spine J. 2009 Sep;18(9):1293-9. doi: 10.1007/s00586-009-1032-7. Epub 2009 Jun 2.
Other Identifiers
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ASTPSF
Identifier Type: -
Identifier Source: org_study_id
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