[Effects of a New Anatomical Adaptive Titanium Mesh Cage on Supportive Load at the Cervical Endplate: a Morphological and Biomechanical Study]

Overview

Journal Nan Fang Yi Ke Da Xue Xue Bao

Specialty General Medicine

Date 2019 May 10

PMID 31068283

Citations 1

Authors

Teng Lu

Zhongyang Gao

Xijing He

Jialiang Li

Ning Liu

Hui Liang

Yibin Wang

Zhijing Wen

Ting Zhang

Dong Wang

Haopeng Li

Affiliations

Soon will be listed here.

Abstract

Objective: To assess the geometrical matching of a new anatomical adaptive titanium mesh cage (AA-TMC) with the endplate and its effect on cervical segmental alignment reconstruction in single- and two-level anterior cervical corpectomy and fusion (ACCF) and compare the compressive load at the endplate between the AA-TMC and the conventional titanium mesh cage (TMC).

Methods: Twelve cervical cadaveric specimens were used to perform single- and two-level ACCF. The interbody angle (IBA), interbody height (IBH) and the interval between the AA-TMC and the endplate were evaluated by comparison of the pre- and postoperative X-ray images. The maximum load at the endplate was compared between the AA-TMC and TMC based on American Society for Testing and Materials (ASTM) F2267 standard.

Results: No significant differences were found between the preoperative and postoperative IBA and IBH in either single-level ACCF (11.62°±2.67° 12.13°±0.69° and 23.90±2.18 mm 24.23±1.13 mm, respectively; > 0.05) or two-level ACCF (15.63°±5.06° 16.16°±1.05°and 42.93±3.51 mm 43.04±1.70 mm, respectively; > 0.05). The mean interval between the AA-TMC and the endplate was 0.37 ± 0.3 mm. Compared to the conventional TMC, the use of AA-TMC significantly increased the maximum load at the endplate in both single-level ACCF (719.7±5.5 N 875.8±5.2 N, < 0.05) and two-level ACCF (634.3±5.9 N 873±6.1 N, < 0.05).

Conclusions: The use of AA-TMC in single-level and two-level ACCF can significantly increase the maximum load at the endplate to lower the possibility of implant subsidence and allows effective reconstruction of the cervical alignment.

Citing Articles

[Comparison of nano-hydroxyapatite/polyamide 66 bioactive support and autologous iliac bone in bone grafting and fusion for elderly patients with lumbar tuberculosis].

Ye J, Fei J, Lai Z, Zhang P, Hu J, Hu S Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi. 2022; 36(3):296-304.

PMID: 35293170 PMC: 8923924. DOI: 10.7507/1002-1892.202110088.

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