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KMID : 1145220220190010202
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Neurospine
2022 Volume.19 No. 1 p.202 ~ p.211
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Reconstruction of the Cervical Lateral Mass Using 3-Dimensional-Printed Prostheses
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Jian Qiang
Liu Zhenlei
Duan Wanru
Guan Jian
Jian Fengzeng
Chen Zan
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Abstract
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Objective: This study aimed to investigate the outcome of using 3-dimensional (3D)-printed prostheses to reconstruct a cervical lateral mass to maintain cervical stability.
Methods: We retrospectively analyzed data of 7 patients who underwent cervical lateral mass reconstruction using a 3D-printed prosthesis, comprising axial and subaxial lateral mass reconstruction in 2 and 5 patients, respectively. Bilateral mass was reconstructed in 1 patient and unilateral mass in the remaining 6 patients.
Results: Using a 3D-printed lateral mass prosthesis, internal fixation was stable for all 7 patients postoperatively. No implant-related complications such as prosthesis loosening, displacement, and compression were observed at the last follow-up.
Conclusion: Reconstruction of the lateral mass structure is beneficial in restoring load transfer in the cervical spine under physiological conditions. A 3D-printed prosthesis can be considered a good option for reconstruction of the lateral mass as fusion was achieved, with no subsequent complications observed.
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KEYWORD
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Lateral mass, Prothesis, Three-dimensional printing, Axis, Subaxial cervical spine
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