From: Is the fusion order of the cranial and caudal levels different in two-level anterior cervical discectomy and fusion for cervical spondylopathy? A retrospective study
Cranial levels
Caudal levels
p
Subsidence (rate)
10 (8.47%)
12 (10.17%)
0.824
Cranial adjacent segment
Caudal adjacent segment
ASD (rate)
32 (27.12%)
23 (19.49%)
0.218