Biomechanical Comparison of Unicortical Versus Bicortical C1 Lateral Mass Screw Fixation

2007 ◽  
Vol 20 (7) ◽  
pp. 505-508 ◽  
Author(s):  
Jason C. Eck ◽  
Matt P. Walker ◽  
Bradford L. Currier ◽  
Qingshan Chen ◽  
Michael J. Yaszemski ◽  
...  
Keyword(s):  
Screw Fixation ◽  
Lateral Mass ◽  
Lateral Mass Screw ◽  
Biomechanical Comparison ◽  
C1 Lateral Mass Screw

C2 Nerve Root Transection During C1 Lateral Mass Screw Fixation

Neurosurgery ◽  
2014 ◽  
Vol 74 (5) ◽  
pp. 475-481 ◽  
Author(s):  
Michael C. Dewan ◽  
Saniya S. Godil ◽  
Stephen K. Mendenhall ◽  
Clinton J. Devin ◽  
Matthew J. McGirt
Keyword(s):  
Nerve Root ◽  
Screw Fixation ◽  
Neck Disability Index ◽  
Occipital Neuralgia ◽  
Lateral Mass ◽  
Negative Consequences ◽  
Lateral Mass Screw ◽  
Patient Reported ◽  
C2 Nerve Root ◽  
C1 Lateral Mass Screw

Abstract BACKGROUND: Sectioning of the C2 nerve root allows for direct visualization of the C1-2 joint and may facilitate arthrodesis. OBJECTIVE: To determine the clinical and functional consequences of C2 nerve root sectioning during placement of C1 lateral mass screws. METHODS: All patients undergoing C1 lateral mass screw fixation were included in this prospective study. A standard questionnaire was used to determine the severity of occipital numbness/pain and its effect on quality of life (QOL). Domains of the neck disability index were used to assess the disability related to C2 symptoms. RESULTS: A total of 28 patients were included (C2 transection, 8; C2 preservation, 20). A trend of decreased blood loss and length of surgery was observed in the C2 transection cohort. Occipital numbness was reported by 4 (50.0%) patients after C2 transection. Occipital neuralgia was reported by 7 (35.0%) patients with C2 preservation. None of the patients with numbness after C2 transection reported being “bothered” by it. All patients with occipital neuralgia after C2 sparing reported being “bothered” by it, and 57.1% reported a moderate to severe effect on QOL. The use of medication was reported by 5 (71.4%) patients with neuralgia vs none with numbness. Mean disability was significantly higher with neuralgia vs numbness (P = .016). CONCLUSION: C2 nerve root transection is associated with increased occipital numbness but this has no effect on patient-reported outcomes and QOL. C2 nerve root preservation can be associated with occipital neuralgia, which has a negative impact on patient disability and QOL. C2 nerve root transection has no negative consequences during C1-2 stabilization.

197 C2 Nerve Root Transection During C1 Lateral Mass Screw Fixation

Neurosurgery ◽  
2013 ◽  
Vol 60 ◽  
pp. 185
Author(s):  
Michael C. Dewan ◽  
Saniya S. Godil ◽  
Matthew J. McGirt
Keyword(s):  
Nerve Root ◽  
Screw Fixation ◽  
Lateral Mass ◽  
Lateral Mass Screw ◽  
C2 Nerve Root ◽  
C1 Lateral Mass Screw

The height for screw index (HSI) predicts the development of C2 nerve dysfunction associated with C1 lateral mass screw fixation for atlantoaxial instability

2014 ◽  
Vol 23 (5) ◽  
pp. 1092-1098 ◽  
Author(s):  
Da-Geng Huang ◽  
Ding-Jun Hao ◽  
Yong-Hong Jiang ◽  
Yue Cheng ◽  
Jun-Wei Pan ◽  
...  
Keyword(s):  
Screw Fixation ◽  
Atlantoaxial Instability ◽  
Lateral Mass ◽  
Lateral Mass Screw ◽  
Nerve Dysfunction ◽  
C1 Lateral Mass Screw

Freehand C1 lateral mass screw fixation technique: our experience

2009 ◽  
Vol 72 (6) ◽  
pp. 676-681 ◽  
Author(s):  
Serkan Simsek ◽  
Kazim Yigitkanli ◽  
Hakan Seckin ◽  
Çetin Akyol ◽  
Deniz Belen ◽  
...  
Keyword(s):  
Screw Fixation ◽  
Lateral Mass ◽  
Lateral Mass Screw ◽  
Fixation Technique ◽  
C1 Lateral Mass Screw

La maladie de Griseltreated by combined C1-2 transarticular and C1 lateral mass screw fixation

2010 ◽  
Vol 24 (4) ◽  
pp. 499-501 ◽  
Author(s):  
E. A. C. Pereira ◽  
J. Hempenstall ◽  
P. M. Pretorius ◽  
A. A. Kamat ◽  
T. A. D. Cadoux-Hudson
Keyword(s):  
Screw Fixation ◽  
Lateral Mass ◽  
Lateral Mass Screw ◽  
C1 Lateral Mass Screw

Combined C1-C2 Transarticular with C1 Lateral Mass Screw Fixation for the Treatment of Atlantoaxial Instability: A Single Center Experience

2016 ◽  
Vol 3 (4) ◽  
pp. 133-139 ◽  
Author(s):  
Murtuza Sikander ◽  
Sean Martin ◽  
Bassam Dabbous ◽  
Stewart Griffiths ◽  
Sumit Karia ◽  
...  
Keyword(s):  
Screw Fixation ◽  
Atlantoaxial Instability ◽  
Lateral Mass ◽  
Lateral Mass Screw ◽  
Single Center ◽  
Single Center Experience ◽  
C1 Lateral Mass Screw
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