Computed Tomography- and Radiography-Based Morphometric Analysis of the Lateral Mass of the Subaxial Cervical Spine in the Indian Population

Patil, Nirmal Dhananjay; Srivastava, Sudhir; Bhosale, Sunil; Purohit, Shaligram

doi:10.4184/asj.2018.12.1.18

Cited by 4 publications

(7 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The results showed that MLD and height increased, and FJA decreased gradually from C3 to C7, indicating that the lateral mass gradually became wide, tall, and steep from C3 to C7. Although the measurement method in this study was different from those conducted by Patil et al and Abdulla et al, the regularity of changes from C3 to C7 in results is similar with theirs 18,21 . We found that the morphology of subaxial lateral masses was similar, enabling one series of prostheses can meet the need of the majority of clinical practice.…”

Section: Accepted Manuscriptsupporting

confidence: 71%

“…Although the measurement method in this study was different from those conducted by Patil et al and Abdullah et al, the changes from C3 to C7 are similar with theirs. 18,21 We found that the overall morphology of subaxial lateral masses is quite uniform. Thus, one set of prostheses could meet the need of the majority of the patients in clinical practice.…”

Section: Discussionmentioning

confidence: 73%

“…Admittedly, previous studies did complete the measurement of the lateral mass, but the majority of these studies focused on efficacy and safety for screw insertion. [16][17][18][19][20] No lateral mass prosthesis was designed to reconstruct posterior column of cervical spine after facet resection.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

See 2 more Smart Citations

Subaxial Lateral Mass Prosthesis for Posterior Reconstruction of Cervical Spine

Jian

Liu

Duan

et al. 2022

J Neurol Surg A Cent Eur Neurosurg

View full text Add to dashboard Cite

Purpose: To obtain the relevant morphometry of the lateral mass of the subaxial cervical spine (C3-C7) and to design a series of lateral mass prostheses for the posterior reconstruction of the stability of cervical spine. Methods: The computed tomography (CT) scans of healthy volunteers were obtained. RadiAnt DICOM Viewer software (Version 2020.1, Medixant, Poland) was used to measure the parameters of lateral mass, such as height, anteroposterior dimension (APD), mediolateral dimension (MLD) and facet joint angle. According to the parameters, a series of cervical lateral mass prostheses were designed. Cadaver experiment was conducted to demonstrate its feasibility. Results: 23 volunteers with an average age of 30.1 ± 7.1 years were enrolled in this study. The height of lateral mass is 14.1 mm averagely. Facet joint angle, APD and MLD of lateral mass averaged 40.1 degrees, 11.2 mm and 12.18 mm, respectively. With these key data, a lateral mass prosthesis consists of a bone grafting column and a posterior fixation plate was designed. The column has a 4.0 mm radius, 41 degrees surface angle and adjustable height of 13, 15, or 17 mm. In the cadaver experiment, the grafting column could function as a supporting structure between adjacent facets, and it would not violate exiting nerve root (NR) or vertebral artery (VA). Conclusion: This study provided detailed morphology of the lateral mass of subaxial cervical spine. A series of subaxial cervical lateral mass prostheses were designed awaiting further clinical application.

show abstract

Section: Accepted Manuscriptsupporting

confidence: 71%

Section: Discussionmentioning

confidence: 73%

See 1 more Smart Citation

Subaxial Lateral Mass Prosthesis for Posterior Reconstruction of Cervical Spine

Jian

Liu

Duan

et al. 2022

J Neurol Surg A Cent Eur Neurosurg

View full text Add to dashboard Cite

show abstract

“…[ 14 , 15 ] Previous research has found that the relationships between the cervical dura- sac thickness, narrowed spinal canal, and cervical lateral masses are closely associated with disc aging, degeneration, and CCS. [ 16 ] Kayalioglu et al have reported that the pedicles of cervical vertebrae are strong structural anatomic elements of the cervical vertebrae and offer the strength of attachment to the cervical spine. [ 10 ] Wasinpongwanich et al noted that overall mean pedicle height was 6.9 mm at C6.…”

Section: Discussionmentioning

confidence: 99%

Best cutoff score of cervical-pedicle thickness as a morphological parameter for predicting cervical central stenosis

et al. 2022

View full text Add to dashboard Cite

There are various factors for the cause of cervical central stenosis (CCS), such as osteophyte, cervical-disc degeneration, and cervical ligamentum flavum hypertrophy. However, the pedicle of the cervical vertebra has not yet been analyzed for its relationship with CCS. We created a new morphologic parameter called the cervical-pedicle thickness (CPT) to assess the association between CCS and the cervical pedicle.We obtained morphological cases involving the CPT from 82 patients with CCS. There were also 84 in the normal group who underwent cervical spine magnetic resonance imaging (CS-MR) as part of routine health screening. We obtained the T2-weighted CS-MR axial images from group members, and assessed the CPT at the level of the C6 vertebra on CS-MR.The mean CPT was 3.46 ± 0.57 mm in the normal group, 4.97 ± 0.75 mm in the CCS group, which thus had a significantly higher CPT (P < .01) than did the normal group. For the prognostic value of the CPT as a predictor of CCS, ROC analysis indicated that the best cutoff score for the CPT was 4.18 mm, with 93.9% sensitivity, 92.9% specificity, and AUC 0.97.Greater CPT was highly associated with a possibility of CCS. This conclusion will be helpful for assessing the CCS patients.

show abstract

“…In the sagittal plane, the pedicle is located on the most rostral quarter (zone 1) of the vertebral body [ Figure 1b ]. [ 3 4 ]…”

Section: Introductionmentioning

confidence: 99%

Lateral mass intra-pedicular screw fixation for subaxial cervical spines - An alternative surgical technique

Kojima¹,

Ishikawa

Endo³

et al. 2021

J Craniovert Jun Spine

View full text Add to dashboard Cite

Background: Lateral mass screw (LMS) and transpedicular screw (TPS) techniques are the two major options for performing posterior cervical fusion of the subaxial cervical spine. Although these two techniques can cover the vast majority of patients who require posterior fixation of the cervical spine, they are not without their limitations. Objective: The objective of this study is to introduce a novel technique, lateral mass intrapedicular screw (LMIS) fixation, for posterior subaxial cervical spine (C3–C6) fixation. Materials and Methods: The starting point of the screw is defined as the midpoint of the lateral mass. In the axial plane, the screw is angled at 20–25 with respect to the midline of the spinous process. In the sagittal plane, the screw is directed toward the rostral quarter (zone 1) of the vertebral body and placed within the pedicle. A preliminary, proof-of-concept experiment was performed using a bone model created with synthetic bone and computed tomography images before performing the operation on a patient. Results: During the preliminary experiment, insignificant breaching of the inner cortex of the pedicle was observed with one of the screws. However, no other screws breached the inner cortex in the same manner during the preliminary experiment or during the operation, and the intraoperative fixation was strong. Conclusion: LMIS is a relatively simple and safe technique that can be performed for the fixation of subaxial cervical spines with screws that are longer than those used in LMS. We believe that this technique may join the two existing techniques to become a common alternative technique, particularly for patients with poor bone quality.

show abstract

Computed Tomography- and Radiography-Based Morphometric Analysis of the Lateral Mass of the Subaxial Cervical Spine in the Indian Population

Cited by 4 publications

References 16 publications

Subaxial Lateral Mass Prosthesis for Posterior Reconstruction of Cervical Spine

Subaxial Lateral Mass Prosthesis for Posterior Reconstruction of Cervical Spine

Best cutoff score of cervical-pedicle thickness as a morphological parameter for predicting cervical central stenosis

Lateral mass intra-pedicular screw fixation for subaxial cervical spines - An alternative surgical technique

Contact Info

Product

Resources

About