Outcomes of Discectomy by Using Full-Endoscopic Visualization Technique via the Transcorporeal and Transdiscal Approaches in the Treatment of Cervical Intervertebral Disc Herniation: A Comparative Study

Table 1

Summary of demographics, clinical data, and treatment level.

Baseline characteristics	ATd-PECD (N = 42)	ATc-PECD (N = 35)
Female gender (%)	16 (38)	12 (34)
Mean age, years (range)	41.3 (28–57)	50.3 (28–72)
Mean duration of symptoms, weeks (range)	15 (6–46)	37 (1–61)
Indications for surgery
Radiculopathy	33	24
Myelopathy	9	11
Treatment level
C3-C4	3	4
C4-C5	11	12
C5-C6	23	16
C6-C7	5	3

ATd-PECD: anterior transdiscal percutaneous endoscopic cervical discectomy; ATc-PECD: anterior transcorporeal percutaneous endoscopic cervical discectomy.