Table 4.

Complications of biportal endoscopic posterior cervical surgery of reviewed study

Study	Year	Design	Country	Approach	Complications (n)
Jung and Kim [37]	2022	Retrospective study	Korea	Biportal endoscopic	Transient motor weakness (1)
Zhu et al. [38]	2022	Technical note	China	Biportal endoscopic	Transient hypesthesia (1)
Kim et al. [39]	2022	Technical note	Korea	Biportal endoscopic	Operation site pain and numbness (1)
Song and Lee [40]	2020	Technical note	Korea	Biportal endoscopic	Dura tear (1)