Dear Editor,
We appreciate the letter from Prof. A. Goel, whose team had reported a patient with congenital basilar invagination after odontoidectomy in the year 1994, and the stability reconstruction was performed by a double compression stainless steel radio-ulnar fixation plate with screws place to the clivus and the body of the cervical vertebra [1]. For the anterior occipitocervical reconstruction, except for the above fixation method, the modified titanium mesh was also applied [2]. However, for the clival screw fixation, the anatomy of the clivus was unclear; furthermore, there was no specific instrumentation for the craniovertebral region anteriorly. Then, we conducted series anatomic studies for the clival screw placement [3]. Based on those anatomic data, a novel clivus plate fixation system specific to craniovertebral region was developed, which was biomechanically prior to the conventional fixation techniques [4]. Therefore, there are innovations in our series of works as stated above, and that will lay a foundation for the clinical application. Surely, in our previous studies, the researches of Dr. Goel’s team and studies related to the method of the modified titanium mesh were also quoted.
References
Goel A, Laheri VK (1994) Plate and screw fixation for atlanto-axial dislocation. (Technical report). Acta Neurochir 129:47–53
Suchomel P, Buchvald P, Barsa P, Froehlich R, Choutka O, Krejzar Z, Sourkova P, Endrych L, Dzan L (2007) Single-stage total C-2 intralesional spondylectomy for chordoma with three-column reconstruction. Technical note. J Neurosurg Spine 6(6):611–618
Ji W, Wang XY, Xu HZ, Yang XD, Chi YL, Yang JS, Yan SF, Zheng JW, Chen ZX (2012) The anatomic study of clival screw fixation for the craniovertebral region. Eur Spine J 21:1483–1491
Ji W, Tong J, Huang Z, Zheng M, Wu X, Chen J, Zhu Q (2015) A clivus plate fixation for reconstruction of ventral defect of the craniovertebral junction: a novel fixation device for craniovertebral instability. Eur Spine J 24:1658–1665
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Ji, W., Zhu, Q. & Lin, J. Answer to the Letter to the Editor of A. Goel concerning “Clival screw and plate fixation by the transoral approach for the craniovertebral junction: a CT-based feasibility study” by Lin J, Kong G, Xu X, Liu Q, Huang Z, Zhu Q, and Ji W (Eur Spine J. 2019; doi:10.1007/s00586-019-06039-5). Eur Spine J 28, 2630 (2019). https://doi.org/10.1007/s00586-019-06137-4
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DOI: https://doi.org/10.1007/s00586-019-06137-4