Description of the studies included in the analysis
| Author | Implant | Diagnosis | Control | N | Primary outcome measures used |
|---|---|---|---|---|---|
| Kuslich1 | BAK cages | Symptomatic disc | None | 947 | Modified Prolo Scale |
| degeneration | |||||
| Ray2 | Ray threaded fusion cages | Symptomatic disc degeneration | None | 236 | Prolo Scale |
| Brantigan3 | Brantigan I/F cages | Symptomatic disc degeneration with failed discectomy | None | 221 | 5 point Likert scale for pain |
| Burkus4 | InFUSE bone graft in tapered cages | Symptomatic disc degeneration | Autogenous iliac crest bone graft in tapered cages | 143 Infuse; 136 autograft | ODI, back pain, leg pain, patient satisfaction, work status |
| Blumenthal5 | CHARITÉ Artificial Disc | Symptomatic disc degeneration | ALIF (BAK cages with iliac crest bone graft) | 205 CHARITÉ; 99 fusion | VAS, ODI |
| Zigler6 and Synthes Spine7 (on FDA website) | ProDisc-L Total Disc Replacement | Symptomatic disc degeneration | Combined anterior/posterior instrumented fusion | 162 ProDisc-L; 80 fusion | ODI, VAS, satisfaction |
| Zucherman8 | X-STOP | Neurogenic intermittent claudication due to stenosis | Non-operative care | 100 X-STOP; 91 control | Zurich Claudication Questionnaire |