Clinical and radiologic outcome of laminar screw at C2 and C7 for posterior instrumentation—review of 25 cases and comparison of C2 and C7 intralaminar screw fixation

2010 ◽  
Vol 73 (2) ◽  
pp. 112-118 ◽  
Author(s):  
Jae Taek Hong ◽  
Jin Seok Yi ◽  
Jong Tae Kim ◽  
Chul Ji ◽  
Kyung Sik Ryu ◽  
...  
Keyword(s):  
Screw Fixation ◽  
Posterior Instrumentation ◽  
Laminar Screw

P32. Significance of Laminar Screw Fixation in the Subaxial Cervical Spine

2008 ◽  
Vol 8 (5) ◽  
pp. 116S-117S ◽  
Author(s):  
Jae Taek Hong ◽  
Howard An ◽  
Chun-Kun Park ◽  
Sang Won Lee
Keyword(s):  
Cervical Spine ◽  
Screw Fixation ◽  
Laminar Screw ◽  
Subaxial Cervical Spine

scholarly journals Atlantoaxial Stabilization Using C1 and C2 Laminar Screw Fixation

2017 ◽  
Vol 11 (2) ◽  
pp. 314-318 ◽  
Author(s):  
Takashi Tsuji ◽  
Kazuhiro Chiba ◽  
Yosuke Horiuchi ◽  
Tadahisa Urabe ◽  
Shota Fujita ◽  
...  
Keyword(s):  
Vertebral Artery ◽  
Lower Risk ◽  
Screw Fixation ◽  
Artery Occlusion ◽  
Cervical Spine Fracture ◽  
Atlantoaxial Joint ◽  
Laminar Screw ◽  
Combined Use ◽  
Atlantoaxial Stabilization ◽  
C2 Laminar Screw

<p>We describe the use of a C1 laminar screw in combination with a C2 laminar screw as a salvage technique to treat two patients, one with persistent first intersegmental artery and the other with vertebral artery occlusion after cervical spine fracture. The combined use of C1 and C2 laminar screws allows for good fixation of the atlantoaxial joint with a lower risk of vertebral artery injury; therefore, it can be an alternative surgical procedure for patients with congenital or traumatic anomalous vertebral artery.</p>

Cement augmentation in vertebral burst fractures

2014 ◽  
Vol 37 (1) ◽  
pp. E5 ◽  
Author(s):  
Anton V. Zaryanov ◽  
Daniel K. Park ◽  
Jad G. Khalil ◽  
Kevin C. Baker ◽  
Jeffrey S. Fischgrund
Keyword(s):  
Screw Fixation ◽  
Posterior Instrumentation ◽  
Posterior Wall ◽  
Cord Compression ◽  
Pedicle Screw Fixation ◽  
Anterior Column ◽  
Extreme Caution ◽  
Hardware Failure ◽  
Burst Fractures ◽  
Anterior Column Support

As a result of axial compression, traumatic vertebral burst fractures disrupt the anterior column, leading to segmental instability and cord compression. In situations with diminished anterior column support, pedicle screw fixation alone may lead to delayed kyphosis, nonunion, and hardware failure. Vertebroplasty and kyphoplasty (balloon-assisted vertebroplasty) have been used in an effort to provide anterior column support in traumatic burst fractures. Cited advantages are providing immediate stability, improving pain, and reducing hardware malfunction. When used in isolation or in combination with posterior instrumentation, these techniques theoretically allow for improved fracture reduction and maintenance of spinal alignment while avoiding the complications and morbidity of anterior approaches. Complications associated with cement use (leakage, systemic effects) are similar to those seen in the treatment of osteoporotic compression fractures; however, extreme caution must be used in fractures with a disrupted posterior wall.

Significance of Laminar Screw Fixation in the Subaxial Cervical Spine

Spine ◽  
2008 ◽  
Vol 33 (16) ◽  
pp. 1739-1743 ◽  
Author(s):  
Jae Taek Hong ◽  
Jae Hoon Sung ◽  
Byung Chul Son ◽  
Sang Won Lee ◽  
Chun Kun Park
Keyword(s):  
Cervical Spine ◽  
Screw Fixation ◽  
Laminar Screw ◽  
Subaxial Cervical Spine

scholarly journals Laminar screw fixation in the subaxial cervical spine: A report on three cases

2016 ◽  
Vol 7 (10) ◽  
pp. 695 ◽  
Author(s):  
Hironori Tanabe ◽  
Yoichi Aota ◽  
Tomoyuki Saito
Keyword(s):  
Cervical Spine ◽  
Screw Fixation ◽  
Laminar Screw ◽  
Subaxial Cervical Spine

The biomechanical contribution of varying posterior constructs following anterior thoracolumbar corpectomy and reconstruction

2010 ◽  
Vol 13 (2) ◽  
pp. 234-239 ◽  
Author(s):  
Frank S. Bishop ◽  
Mical M. Samuelson ◽  
Michael A. Finn ◽  
Kent N. Bachus ◽  
Darrel S. Brodke ◽  
...  
Keyword(s):  
Pedicle Screw ◽  
Screw Fixation ◽  
Posterior Instrumentation ◽  
Axial Rotation ◽  
Pedicle Screw Fixation ◽  
Bending Stiffness ◽  
Lateral Bending ◽  
Biomechanical Stability ◽  
Flexion Extension ◽  
Anterior Plating

Object Thoracolumbar corpectomy is a procedure commonly required for the treatment of various pathologies involving the vertebral body. Although the biomechanical stability of anterior reconstruction with plating has been studied, the biomechanical contribution of posterior instrumentation to anterior constructs remains unknown. The purpose of this study was to evaluate biomechanical stability after anterior thoracolumbar corpectomy and reconstruction with varying posterior constructs by measuring bending stiffness for the axes of flexion/extension, lateral bending, and axial rotation. Methods Seven fresh human cadaveric thoracolumbar spine specimens were tested intact and after L-1 corpectomy and strut grafting with 4 different fixation techniques: anterior plating with bilateral, ipsilateral, contralateral, or no posterior pedicle screw fixation. Bending stiffness was measured under pure moments of ± 5 Nm in flexion/extension, lateral bending, and axial rotation, while maintaining an axial preload of 100 N with a follower load. Results for each configuration were normalized to the intact condition and were compared using ANOVA. Results Spinal constructs with anterior-posterior spinal reconstruction and bilateral posterior pedicle screws were significantly stiffer in flexion/extension than intact spines or spines with anterior plating alone. Anterior plating without pedicle screw fixation was no different from the intact spine in flexion/extension and lateral bending. All constructs had reduced stiffness in axial rotation compared with intact spines. Conclusions The addition of bilateral posterior instrumentation provided significantly greater stability at the thoracolumbar junction after total corpectomy than anterior plating and should be considered in cases in which anterior column reconstruction alone may be insufficient. In cases precluding bilateral posterior fixation, unilateral posterior instrumentation may provide some additional stability.

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