scholarly journals Factors Affecting Titanium Mesh Cage Subsidence in Single-level Anterior Cervical Corpectomy and Fusion for Ossification of the Posterior Longitudinal Ligament

2021 ◽  
Author(s):  
Yifan Tang ◽  
Fengning Li ◽  
Xiangwu Geng ◽  
Lianshun Jia ◽  
Shengyuan Zhou ◽  
...  
Keyword(s):  
Posterior Longitudinal Ligament ◽  
Titanium Mesh ◽  
Titanium Mesh Cage ◽  
Cervical Corpectomy ◽  
Single Level ◽  
Significant Difference ◽  
Cage Subsidence ◽  
Mesh Cage ◽  
Anterior Cervical Corpectomy

Abstract Background: To analyze risk factors of titanium mesh cage (TMC) subsidence in single-level anterior cervical corpectomy and fusion (ACCF) for cervical ossification of the posterior longitudinal ligament (OPLL). Methods: Patients with cervical OPLL who were treated with single-level ACCF between January 2019 to December 2019 were retrospectively analyzed in two groups: patients with TMC subsidence as Group S, and patients with no TMC subsidence as Group N during the one-year follow-up period. The degree of distraction between decompression of the vertebral bodies and correction of the cervical curvature was measured to analyze their relationship with TMC subsidence. Results: There was no significant difference in patient demographics and complications between the two groups. The degree of distraction in Group S was significantly higher than that in Group N. The change of C2 to C7 Cobb angle (α) in Group S was significantly greater than that in Group N, and the interspinous process distance (SPD) in Group S was also significantly greater than that in Group N. The JOA score and JOA recovery rate were not statistically different between the two groups.Conclusions: Intraoperative selection of overlength TMC in single-level ACCF for OPLL, over-distraction, and excessive correction of the cervical curvature may cause TMC subsidence after surgery. No significant impact of TMC subsidence on the surgical outcome was observed during the 1-year follow-up period.

scholarly journals Clinical Use of the Nanohydroxyapatite/Polyamide Mesh Cage in Anterior Cervical Corpectomy and Fusion Surgery

2015 ◽  
Vol 2015 ◽  
pp. 1-6
Author(s):  
Hui Xu ◽  
Xiaofeng Ren ◽  
Dawei Wang ◽  
Yongfei Zhao ◽  
Yan Wang ◽  
...  
Keyword(s):  
Japanese Orthopaedic Association ◽  
Clinical Use ◽  
Titanium Mesh ◽  
Polyamide 66 ◽  
Titanium Mesh Cage ◽  
Cervical Corpectomy ◽  
Cage Subsidence ◽  
Mesh Cage ◽  
Anterior Cervical Corpectomy

Purpose. This study was to report the clinical use of biomimetic nanohydroxyapatite/polyamide 66 (n-HA/PA 66) mesh cages in anterior cervical corpectomy and fusion (ACCF) surgery.Method. 95 patients who underwent single level anterior cervical corpectomy and fusion for cervical spondylosis myelopathy (CSM) in our hospital were reviewed and divided into 2 groups according to using nanohydroxyapatite/polyamide mesh cage and titanium mesh cage (TMC). Demographic data of patients and surgical, clinical, and radiological data before operation and at last follow-up were collected and compared.Result. The operation time, surgical blood loss, complications, and Japanese Orthopaedic Association scores (JOA scores) of two groups were similar. At the last follow-up both the two groups obtained 100% solid bone fusion, but the TMC group had higher rate of severe cage subsidence than the n-HA/PA 66 group (27% versus 2%).Conclusion. Nanohydroxyapatite/polyamide 66 mesh cage is safe and effective in ACCF and can be a substitution to titanium mesh cage.

Vertebral Autograft Used as Bone Transplant for Anterior Cervical Corpectomy: Technical Note

Neurosurgery ◽  
2003 ◽  
Vol 52 (2) ◽  
pp. 449-454 ◽  
Author(s):  
Andreas Rieger ◽  
Carsten Holz ◽  
Thomas Marx ◽  
Lhagva Sanchin ◽  
Matthias Menzel
Keyword(s):  
Cervical Spondylotic Myelopathy ◽  
Japanese Orthopaedic Association ◽  
Titanium Mesh ◽  
Titanium Mesh Cage ◽  
Bone Material ◽  
Cervical Corpectomy ◽  
Mesh Cage ◽  
Vertebral Bodies ◽  
Anterior Cervical Corpectomy

Abstract OBJECTIVE In this prospective patient study, we used a surgical technique for autograft bone fusion during anterior cervical corpectomy (ACC) in patients experiencing cervical spondylotic myelopathy. We packed the resected bone material of the corpectomy into a titanium mesh cage. To evaluate the efficacy of our autograft technique, we analyzed the results according to neurological outcome, radiological outcome, and complications. METHODS Between 1995 and 1998, 27 ACC operations were performed for cervical spondylotic myelopathy caused by multisegmental cervical spondylosis. In all patients, decompression of the cervical canal and/or spinal nerve roots was performed by a median cervical corpectomy by an anterior approach. After the ACC was completed, a titanium mesh cage, which was variable in diameter and length, was filled with morselized and impacted bone material from the cervical corpectomy and was then implanted. An anterior cervical plate was placed in all patients to achieve primary stability of the cervical vertebral column. Age, sex, pre- and postoperative myelopathy, number of decompressed levels, radiological results, and complications were assessed. The severity of myelopathy was graded according to the scoring system of the Japanese Orthopaedic Association. RESULTS Symptomatic improvement of neurological deficits was achieved in 80% of the patients. The mean preoperative Japanese Orthopaedic Association score improved from 13.1 to 15.2 postoperatively (P < 0.05). No patient demonstrated worsening of myelopathic symptoms. Radiological follow-up studies demonstrated complete bony fusion in all patients. A vertical movement of 2.25 ± 0.43 mm of the titanium cage into the adjacent vertebral bodies was observed in 24 patients. In patients with either a lordotic or neutral cervical spinal axis postoperatively, the axis remained unchanged during the entire follow-up period. CONCLUSION The results of this study demonstrate that transplantation of autograft bone material harvested during the ACC integrated well in the cage and in the adjacent vertebral bodies. Thus, complications associated with explantation of autograft material from other donor sites, e.g., the iliac crest, could be avoided. The early postoperative and midterm follow-up periods provided no evidence of morphological or functional instability of the operated cervical segments when this autograft technique was used in combination with cervical instrumentation.

scholarly journals A novel anatomic titanium mesh cage for reducing the subsidence rate after anterior cervical corpectomy: a finite element study

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yuhang Wang ◽  
Yi Zhan ◽  
Huiming Yang ◽  
Hua Guo ◽  
Haiping Zhang ◽  
...  
Keyword(s):  
Finite Element ◽  
Three Dimensional ◽  
Titanium Mesh ◽  
Titanium Mesh Cage ◽  
Element Analysis ◽  
Cervical Corpectomy ◽  
Subsidence Rate ◽  
Anterior Corpectomy ◽  
Mesh Cage ◽  
Anterior Cervical Corpectomy

AbstractFusion with a titanium mesh cage (TMC) has become popular as a conventional method after cervical anterior corpectomy, but postoperative TMC subsidence has often been reported in the literature. We designed a novel anatomic cervical TMC to reduce the postoperative subsidence rate. According to the test process specified in the American Society of Testing Materials (ASTM) F2267 standard, three-dimensional finite element analysis was used to compare the anti-subsidence characteristics of a traditional TMC (TTMC) and novel TMC (NTMC). Through analysis, the relative propensity values of a device to subside (Kp) of the TTMC and NTMC were 665.5 N/mm and 1007.2 N/mm, respectively. A higher Kp measurement is generally expected to indicate that the device is more resistant to subsidence into a vertebral body. The results showed that the novel anatomic titanium mesh cage (NTMC) significantly improved the anti-subsidence performance after anterior cervical corpectomy and fusion (ACCF), which was approximately 51.3% higher than that of the traditional titanium mesh cage.

scholarly journals Anterior Cervical Corpectomy and Stabilization using Titanium Mesh Cage and Locking Plate for Muti-level Disease of The Cervical Spine

2002 ◽  
Vol 16 (2) ◽  
pp. 105-112 ◽  
Author(s):  
Hiroyuki Nakase ◽  
Yuki Ida ◽  
Rinsei Tei ◽  
Toshisuke Sakaki ◽  
Testuya Morimoto
Keyword(s):  
Cervical Spine ◽  
Locking Plate ◽  
Titanium Mesh ◽  
Titanium Mesh Cage ◽  
Cervical Corpectomy ◽  
Mesh Cage ◽  
Anterior Cervical Corpectomy

scholarly journals A novel anatomic titanium mesh cage for reducing the subsidence rate after anterior cervical corpectomy: a finite element study

2021 ◽  
Author(s):  
Yuhang Wang ◽  
Huiming Yang ◽  
Hua Guo ◽  
Haiping Zhang ◽  
Qinpeng Zhao ◽  
...  
Keyword(s):  
Finite Element ◽  
Three Dimensional ◽  
Titanium Mesh ◽  
Titanium Mesh Cage ◽  
Element Analysis ◽  
Cervical Corpectomy ◽  
Subsidence Rate ◽  
Anterior Corpectomy ◽  
Mesh Cage ◽  
Anterior Cervical Corpectomy

Abstract Fusion with a titanium mesh cage (TMC) has become popular as a conventional method after cervical anterior corpectomy, but postoperative TMC subsidence has often been reported in the literature. We designed a novel anatomic cervical TMC to reduce the postoperative subsidence rate. According to the test process specified in the American Society of Testing Materials (ASTM) F2267 standard, three-dimensional finite element analysis was used to compare the anti-subsidence characteristics of a traditional TMC (TTMC) and novel TMC (NTMC). Through analysis, The relative propensity values of a device to subside (Kp) of the TTMC and NTMC were be 665.5 N/mm and 1007.2 N/mm, respectively. A higher Kp measurement is generally expected to indicate that the device is more resistant to subsidence into a vertebral body. The results showed that the novel anatomic titanium mesh cage (NTMC) significantly improved the anti-subsidence performance after anterior cervical corpectomy and fusion (ACCF), which was approximately 51.3% higher than that of the traditional titanium mesh cage.

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