The CASCADE trial: effectiveness of ceramic versus PEEK cages for anterior cervical discectomy with interbody fusion; protocol of a blinded randomized controlled trial

Table 2 Data collection and outcome measures

Measure	Pre-Op	Intra-Op	3 months	6 months	12 months	24 months
Inclusion / exclusion criteria	x
Product use, operative time, blood loss		x
Neurological examination	x		x	x	x	x
Neck Disability Index, Arm Pain VAS, Neck Pain VAS, SF-36, Recovery Likert	x		x	x	x	x
Radiographs X-ray	x		x	x	x	x
CT scan				x

ISSN: 1471-2474