scholarly journals The Effect of the PEEK Cage on the Cervical Lordosis in Patients Undergoing Anterior Cervical Discectomy

2015 ◽  
Vol 3 (2) ◽  
pp. 215-223 ◽  
Author(s):  
Salih Gulsen
Keyword(s):  
Postoperative Period ◽  
Demineralized Bone Matrix ◽  
Bone Matrix ◽  
Anterior Cervical Discectomy ◽  
Cervical Lordosis ◽  
Peek Cage ◽  
Cervical Discectomy ◽  
Cervical Root ◽  
Group 1 ◽  
Demineralized Bone

BACKGROUND: Loss of cervical lordosis is a significant factor in the development of degeneration of the spine with aging. This degenerative changings of the cervical spine would cause pressure effect on the cervical root and/or medulla spinalis.AIM: Our goal is to understand the effect of the PEEK cage on cervical lordosis in the early postoperative period. Also, to interpret the effects of one- level, two- level, three-level and four- level disc pathologies on cervical lordosis.MATERIAL AND METHODS: We retrospectively investigated our archive, and we selected thirty-four patients undergoing anterior cervical discectomy and fusion with PEEK cage filled with demineralized bone matrix (ACDFP).RESULTS: We determined that ACDFP provides improvement in the cervical lordosis angle in both groups. Also, we found statistically significant difference between group 1 and 2 regarding causes of radiculomyelopathy statistically.CONCLUSION: We achieved better cervical lordotic angles at the postoperative period by implanting one-level, two-level, three-level or four-level PEEK cage filled with demineralized bone matrix. Also, the causes of cervical root and or medulla spinalis impingement were different in group1 and 2. While extruded cervical disc impingement was the first pathology in group 1, osteophyte formation was the first pathology in group 2.

Demineralized bone matrix in anterior cervical discectomy and fusion: a systematic review

2016 ◽  
Vol 26 (4) ◽  
pp. 958-974 ◽  
Author(s):  
Shayan Abdollah Zadegan ◽  
Aidin Abedi ◽  
Seyed Behnam Jazayeri ◽  
Alexander R. Vaccaro ◽  
Vafa Rahimi-Movaghar
Keyword(s):  
Systematic Review ◽  
Demineralized Bone Matrix ◽  
Bone Matrix ◽  
Anterior Cervical Discectomy ◽  
Cervical Discectomy ◽  
Demineralized Bone

scholarly journals Reciprocal change of occipitocervical parameters after anterior cervical discectomy and fusion

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Eugene J. Park ◽  
Seungho Chung ◽  
Woo-Kie Min
Keyword(s):  
Spinous Process ◽  
Anterior Cervical Discectomy ◽  
Sagittal Imbalance ◽  
Cervical Lordosis ◽  
Cervical Discectomy ◽  
Shortest Distance ◽  
Spinous Processes ◽  
Group 2 ◽  
Reciprocal Change ◽  
Group 1

AbstractTo evaluate the reciprocal changes in occipitocervical parameters according to the recovery of cervical lordosis (CL) after anterior cervical discectomy and fusion (ACDF) in patients with sagittal imbalance. Sixty-five cases that underwent ACDF were followed. They were divided according to the recovery of the CL: Group 1 (ΔCL > 5°, 30 cases) and Group 2 (ΔCL < 5°, 35 cases). The following parameters were measured: occiput-cervical inclination (OCI), CL, occiput-C2 angle (OC2A), distance between external occipital protuberance and spinous process of C2 (OC2D), distance between spinous processes of C2 and C7 (C27D), and shortest distance between the plumb line of C2 body and posterosuperior corner of C7 (C27SVA). Overall, all parameters changed significantly after ACDF. Preoperative CL and preoperative C27D showed a correlation with ΔCL. ΔCL was negatively correlated with ΔC27D and ΔC27SVA. In Group 1, CL increased from − 2.60 ± 1.88° to 11.57 ± 1.83°, OC2A decreased from 23.96 ± 2.05° to 19.87 ± 1.36°, OC2D increased from 82.96 ± 1.48 mm to 86.50 ± 1.81 mm, C27D decreased from 95.61 ± 2.66 mm to 87.01 ± 2.50 mm, and C27SVA decreased from 24.14 ± 2.20 mm to 17.06 ± 2.14 mm. In Group 2, only OCI decreased significantly after ACDF. ACDF can increase CL postoperatively in patients with cervical sagittal imbalance. Patients with significant CL recovery after ACDF showed a reciprocal change in occipitocervical parameters. (OC2A, OC2D).

Femoral Ring Allograft for Anterior Cervical Interbody Fusion: Technical Note

Neurosurgery ◽  
2000 ◽  
Vol 47 (6) ◽  
pp. 1457-1459 ◽  
Author(s):  
Scott Shapiro ◽  
Raj Bindal
Keyword(s):  
Demineralized Bone Matrix ◽  
Bone Matrix ◽  
Operating Time ◽  
Fusion Rate ◽  
Technical Note ◽  
Anterior Cervical Discectomy ◽  
Long Term Results ◽  
Cervical Discectomy ◽  
Femoral Ring

ABSTRACT OBJECTIVE Cadaveric fibula with locking plate internal fixation has been reported to be associated with fewer complications and better long-term results, compared with autologous iliac crest. With the knowledge that cortically dense allografts collapse less with time, new machined femoral ring allografts were developed for anterior cervical fusion after anterior cervical discectomy. We describe the system and the technique for placement. METHODS The femoral ring allograft set consists of color-coded graft-sizers that correspond precisely to the size of the precut grafts. The purple set is primarily intended for petite cervical vertebral bodies; the purple sizers and grafts are 11 mm wide and 11 mm deep and vary in height from 5 to 9 mm. The green sizers and grafts are 14 mm wide and 11 mm deep and vary in height from 5 to 11 mm. The blue sizers and grafts are 14 mm wide and 14 mm deep and vary in height from 5 to 11 mm. The rostral and caudal faces of the grafts are corrugated, to improve their holding capacity in the interspace. The bone is sterilely packaged in vacuum-sealed bottles, the tops of which are color-coded and precisely labeled. The set also includes a graft holder (to facilitate insertion into the interspace), impactors, and a barrel-shaped cutting burr (to prepare the endplates for fusion). RESULTS After anterior cervical discectomy to treat spondylotic radiculopathy or myelopathy, a femoral ring allograft was inserted, with allogeneic demineralized bone matrix and a locking cervical plate, in 20 cases, with no complications. Use of the system decreased the operating time by an average of 10 to 15 minutes. CONCLUSION The femoral ring allograft system is easy to use, and there have been no complications to date. The long-term fusion rate remains to be determined.

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