P92. Adjacent disc pressure and facet force comparison for cervical spine arthroplasty with Spinal Kinetics, Prodisc-C, Prestige artificial discs, and anterior cervical discectomy and fusion

2005 ◽  
Vol 5 (4) ◽  
pp. S154-S156 ◽  
Author(s):  
Daniel Kim ◽  
Jesse Limm ◽  
Max Lee ◽  
Jon Park
Keyword(s):  
Cervical Spine ◽  
Anterior Cervical Discectomy ◽  
Cervical Discectomy ◽  
Adjacent Disc

scholarly journals Comparison between selective caudal fixed screw construct and all variable screw construct in anterior cervical discectomy and fusion

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jae Jun Yang ◽  
Sehan Park ◽  
Seongyun Park
Keyword(s):  
Fusion Rate ◽  
Anterior Cervical Discectomy ◽  
Disc Space ◽  
Cervical Discectomy ◽  
Locking Mechanism ◽  
Adjacent Disc ◽  
One Year ◽  
The Stability ◽  
Retrospective Comparative Study ◽  
Caudal Level

AbstractThis retrospective comparative study aimed to compare the efficacy of selective caudal fixed screw constructs with all variable screw constructs in anterior cervical discectomy and fusion (ACDF). Thirty-five patients who underwent surgery using selective caudal fixed screw construct (SF group) were compared with 44 patients who underwent surgery using all variable constructs (AV group). The fusion rate, subsidence, adjacent level ossification development (ALOD), adjacent segmental disease (ASD), and plate-adjacent disc space distance were assessed. The one-year fusion rates assessed by computed tomography bone bridging and interspinous motion as well as the significant subsidence rate did not differ significantly between the AV and SF groups. The ALOD and ASD rates and plate-adjacent disc space distances did not significantly differ between the two groups at both the cranial and caudal adjacent levels. The number of operated levels was significantly associated with pseudarthrosis in the logistic regression analysis. The stability provided by the locking mechanism of the fixed screw did not lead to an increased fusion rate at the caudal level. Therefore, the screw type should be selected based on individual patient’s anatomy and surgeon’s experience without concern for increased complications caused by screw type.

scholarly journals Comparison Between Selective Caudal Fixed Screw Construct and All Variable Screw Construct in Anterior Cervical Discectomy and Fusion

2020 ◽  
Author(s):  
Jae Jun Yang ◽  
Sehan Park ◽  
Seongyun Park
Keyword(s):  
Fusion Rate ◽  
Anterior Cervical Discectomy ◽  
Disc Space ◽  
Cervical Discectomy ◽  
Locking Mechanism ◽  
Adjacent Disc ◽  
One Year ◽  
The Stability ◽  
Retrospective Comparative Study ◽  
Caudal Level

Abstract Objectives: This retrospective comparative study aimed to compare the efficacy of selective caudal fixed screw constructs with all variable screw constructs in anterior cervical discectomy and fusion (ACDF). Methods: Thirty-five patients who underwent surgery using selective caudal fixed screw construct (SF group) were compared with 44 patients who underwent surgery using all variable constructs (AV group). The fusion rate, subsidence, adjacent level ossification development (ALOD), adjacent segmental disease (ASD), and plate-adjacent disc space distance were assessed.Results: The one-year fusion rates assessed by computed tomography bone bridging and interspinous motion as well as the significant subsidence rate did not differ significantly between the AV and SF groups. The ALOD and ASD rates and plate-adjacent disc space distances did not significantly differ between the two groups at both the cranial and caudal adjacent levels. The number of operated levels was significantly associated with pseudarthrosis in the logistic regression analysis.Conclusion: The stability provided by the locking mechanism of the fixed screw did not lead to an increased fusion rate at the caudal level. Therefore, the screw type should be selected based on individual patient’s anatomy and surgeon’s experience without concern for increased complications caused by screw type.

scholarly journals Late deep cervical infection after anterior cervical discectomy and fusion: a case report and literature review

2019 ◽  
Vol 20 (1) ◽  
Author(s):  
Ying-Chun Chen ◽  
Lin Zhang ◽  
Er-Nan Li ◽  
Li-Xiang Ding ◽  
Gen-Ai Zhang ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Esophageal Perforation ◽  
Radical Neck Dissection ◽  
Titanium Implant ◽  
Anterior Cervical Discectomy ◽  
Antibiotic Administration ◽  
Cervical Discectomy ◽  
Cervical Infection ◽  
Unstable Cervical Spine ◽  
Degenerative Cervical Spine

Abstract Background Anterior cervical discectomy and fusion (ACDF) is often performed for the treatment of degenerative cervical spine. While this procedure is highly successful, 0.1–1.6% of early and late postoperative infection have been reported although the rate of late infection is very low. Case presentation Here, we report a case of 59-year-old male patient who developed deep cervical abscess 30 days after anterior cervical discectomy and titanium cage bone graft fusion (autologous bone) at C3/4 and C4/5. The patient did not have esophageal perforation. The abscess was managed through radical neck dissection approach with repated washing and removal of the titanium implant. Staphylococcus aureus was positively cultured from the abscess drainage, for which appropriate antibiotics including cefoxitin, vancomycin, levofloxacin, and cefoperazone were administered postoperatively. In addition, an external Hallo frame was used to support unstable cervical spine. The patient’s deep cervical infection was healed 3 months after debridement and antibiotic administration. His cervial spine was stablized 11 months after the surgery with support of external Hallo Frame. Conclusions This case suggested that deep cervical infection should be considered if a patient had history of ACDF even in the absence of esophageal perforation.

3-Tesla Kinematic MRI of the Cervical Spine for Evaluation of Adjacent Level Disease After Monosegmental Anterior Cervical Discectomy and Arthroplasty

Spine ◽  
2017 ◽  
Vol 42 (4) ◽  
pp. 224-231
Author(s):  
Steffen K. Fleck ◽  
Soenke Langner ◽  
Christian Rosenstengel ◽  
Rebecca Kessler ◽  
Marc Matthes ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Anterior Cervical Discectomy ◽  
3 Tesla ◽  
Adjacent Level ◽  
Cervical Discectomy

scholarly journals Pseudarthrosis rate following anterior cervical discectomy with fusion using an allograft cellular bone matrix: a multi-institutional analysis

2021 ◽  
Vol 50 (6) ◽  
pp. E6
Author(s):  
Stephen M. Bergin ◽  
Timothy Y. Wang ◽  
Christine Park ◽  
Shashank Rajkumar ◽  
C. Rory Goodwin ◽  
...  
Keyword(s):  
Cervical Spine ◽  
Bone Growth ◽  
Bone Matrix ◽  
Anterior Cervical Discectomy ◽  
Cervical Discectomy ◽  
Cervical Spine Surgery ◽  
Single Level ◽  
Flexion Extension ◽  
Index Level ◽  
Instrumentation Failure

OBJECTIVE The use of osteobiologics, engineered materials designed to promote bone healing by enhancing bone growth, is becoming increasingly common for spinal fusion procedures, but the efficacy of some of these products is unclear. The authors performed a retrospective, multi-institutional study to investigate the clinical and radiographic characteristics of patients undergoing single-level anterior cervical discectomy with fusion performed using the osteobiologic agent Osteocel, an allograft mesenchymal stem cell matrix. METHODS The medical records across 3 medical centers and 12 spine surgeons were retrospectively queried for patients undergoing single-level anterior cervical discectomy and fusion (ACDF) with the use of Osteocel. Pseudarthrosis was determined based on CT or radiographic imaging of the cervical spine. Patients were determined to have radiographic pseudarthrosis if they met any of the following criteria: 1) lack of bridging bone on CT obtained > 300 days postoperatively, 2) evidence of instrumentation failure, or 3) motion across the index level as seen on flexion-extension cervical spine radiographs. Univariate and multivariate analyses were then performed to identify independent preoperative or perioperative predictors of pseudarthrosis in this population. RESULTS A total of 326 patients met the inclusion criteria; 43 (13.2%) patients met criteria for pseudarthrosis, of whom 15 (34.9%) underwent revision surgery. There were no significant differences between patients with and those without pseudarthrosis, respectively, for patient age (54.1 vs 53.8 years), sex (34.9% vs 47.4% male), race, prior cervical spine surgery (37.2% vs 33.6%), tobacco abuse (16.3% vs 14.5%), chronic kidney disease (2.3% vs 2.8%), and diabetes (18.6% vs 14.5%) (p > 0.05). Presence of osteopenia or osteoporosis (16.3% vs 3.5%) was associated with pseudarthrosis (p < 0.001). Implant type was also significantly associated with pseudarthrosis, with a 16.4% rate of pseudarthrosis for patients with polyetherethereketone (PEEK) implants versus 8.4% for patients with allograft implants (p = 0.04). Average lengths of follow-up were 27.6 and 23.8 months for patients with and those without pseudarthrosis, respectively. Multivariate analysis demonstrated osteopenia or osteoporosis (OR 4.97, 95% CI 1.51–16.4, p < 0.01) and usage of PEEK implant (OR 2.24, 95% CI 1.04–4.83, p = 0.04) as independent predictors of pseudarthrosis. CONCLUSIONS In patients who underwent single-level ACDF, rates of pseudarthrosis associated with the use of the osteobiologic agent Osteocel are higher than the literature-reported rates associated with the use of alternative osteobiologics. This is especially true when Osteocel is combined with a PEEK implant.

scholarly journals Outcome Study of Anterior Cervical Discectomy and Fusion with Lordotic Cage Insertion

2021 ◽  
Author(s):  
Nattawut Niljianskul
Keyword(s):  
Cervical Spine ◽  
Cobb Angle ◽  
Japanese Orthopaedic Association ◽  
Intervertebral Disk ◽  
Anterior Cervical Discectomy ◽  
P Value ◽  
Sagittal Vertical Axis ◽  
Cervical Discectomy ◽  
Radiographic Outcomes ◽  
Disk Height

Objective: This study retrospectively evaluated the clinical and radiographic outcomes following the use of a lordotic cage in anterior cervical discectomy and fusion (ACDF).Material and Methods: All patients who underwent ACDF, at Vajira Hospital; between May 2017 and May 2020, were included in this study. Radiographic images were used to evaluate the device-level Cobb angle (DLCA), segmental Cobb angle (SCA), global Cobb angle (GCA), sagittal vertical axis (SVA), sagittal alignment (SA), and intervertebral disk height. The visual analog scale (VAS) for neck pain, and the Japanese Orthopaedic Association (JOA) score were reviewed as part of the patient’s medical records. Preoperative DLCA, SCA, GCA, SVA, SA, and intervertebral disk height measurements were compared with postoperative measurements at 1 year.Results: A total of 51 patients (88 disks), having undergone ACDF with lordotic cage insertion were included in this study. The initial curvature of the cervical spine was diagnosed as kyphosis in 30 (58.8%) patients, and as lordosis in 21 (41.2%) patients. There was significant improvement in the VAS, JOA, DLCA, SCA, GCA, SVA, SA, and intervertebral disk height after ACDF (p-value<0.050). In patients with preoperative kyphosis, the greatest changes were observed in the GCA (p-value=0.004).Conclusion: The use of a lordotic cage in ACDF improved both the clinical and radiographic outcomes of all postoperative parameters, regardless of the patient’s preoperative cervical spine curvature; although, patients with preoperative kyphosis had greater improvement in GCA.

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