scholarly journals Usefulness of a New Electronic Conductivity Device with a Pedicle Probe and a Multi-axis Angiography Unit for Inserting a C1 Lateral Mass Screw Safely and Tightly: A Technical Note

2019 ◽  
Vol 59 (12) ◽  
pp. 523-528
Author(s):  
Hiroto KAGEYAMA ◽  
Shinichi YOSHIMURA ◽  
Kenichi MATSUDA ◽  
Yasunori YOSHIDA ◽  
Hidetoshi MATSUKAWA ◽  
...  
Keyword(s):  
Electronic Conductivity ◽  
Technical Note ◽  
Lateral Mass ◽  
Lateral Mass Screw ◽  
C1 Lateral Mass Screw

Modified C1 lateral mass screw insertion using a threaded K-wire. A technical note

2020 ◽  
Vol 79 ◽  
pp. 95-99
Author(s):  
Amanda Paterson ◽  
Stephen Byrne ◽  
Mitchell Hansen ◽  
Robert Kuru
Keyword(s):  
Technical Note ◽  
Lateral Mass ◽  
Lateral Mass Screw ◽  
Screw Insertion ◽  
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.

The Feasibility of Microscope-Assisted “Free-Hand” C1 Lateral Mass Screw Insertion Without Fluoroscopy

Spine ◽  
2008 ◽  
Vol 33 (9) ◽  
pp. 1042-1049 ◽  
Author(s):  
Gabriel Liu ◽  
Jacob M. Buchowski ◽  
Hongxing Shen ◽  
Jin Sup Yeom ◽  
K Daniel Riew
Keyword(s):  
Lateral Mass ◽  
Lateral Mass Screw ◽  
Screw Insertion ◽  
C1 Lateral Mass Screw

C1 Lateral Mass Screw Insertion With Protection of C1-C2 Venous Sinus

Spine ◽  
2010 ◽  
Vol 35 (21) ◽  
pp. E1133-E1136 ◽  
Author(s):  
Jie Pan ◽  
Lijun Li ◽  
Lie Qian ◽  
Jun Tan ◽  
Guixin Sun ◽  
...  
Keyword(s):  
Venous Sinus ◽  
Lateral Mass ◽  
Lateral Mass Screw ◽  
Screw Insertion ◽  
C1 Lateral Mass Screw

Placement of C1 Lateral Mass Screw—Alternative Technique: 2-Dimensional Operative Video

2020 ◽  
Vol 19 (3) ◽  
pp. E297-E297 ◽  
Author(s):  
R Tushar Jha ◽  
Nicholas Dietz ◽  
Ehsan Dowlati ◽  
Faheem Sandhu
Keyword(s):  
Neck Pain ◽  
Atlantoaxial Instability ◽  
Alternative Technique ◽  
Lateral Mass ◽  
Lateral Mass Screw ◽  
Fusion Construct ◽  
Flexion Extension ◽  
The Rich ◽  
Posterior Instrumented Fusion ◽  
C1 Lateral Mass Screw

Abstract This operative video demonstrates a C1 lateral mass instrumentation technique that is an alternative to the traditional Goel and Harms techniques.1,2 The advantages of the alternative technique include minimized blood loss from the rich venous plexus surrounding the C2 dorsal root ganglia (DRG), avoidance and preservation of the C2 DRG, and placement of a robust fully threaded screw without risking neuralgia. These are discussed in detail and presented through a case of atlantoaxial instability. Patient's consent was obtained for creating this surgical video. The patient is a 50-yr-old woman with a 17-yr history of rheumatoid arthritis. She presented with 1 yr of neck pain that failed conservative measures. Flexion-extension radiographs demonstrated an atlantodental index (ADI) that reduced from 7 mm on flexion to 0 mm on extension. The patient underwent a C1-C2 posterior instrumented fusion using the alternative technique of C1 lateral mass instrumentation.2 The steps of this technique are explained in great detail through a microsurgical video. The patient's postoperative course was uneventful. Postoperative radiographs and computed tomography (CT) scan demonstrated reduction of ADI and well-placed instrumentation and fusion construct. Her neck pain was completely resolved by 3 mo following surgical stabilization. In the senior author's experience with placing over 120 C1 lateral mass screws with this alternative technique, there have been no instances of vascular injury, sacrifice of C2 DRG, or instrumentation failure. The alternative technique for placement of C1 lateral mass screw is safe, efficient, and holds certain advantages in comparison to the traditionally described method.  Images within the video have been reproduced from AOSpine section of the AO Surgery Reference, www.aosurgery.org, with permission from AO Surgery. Copyright by AOSpine International, Switzerland; and reprinted from World Neurosurgery, 78(1-2), Kang MM et al, C2 Nerve Root Sectioning in Posterior C1-2 Instrumented Fusions, 170-177, Copyright 2012, with permission from Elsevier.

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