Success Criteria
The Clinical Events Committee (CEC) independently determined if an adverse event (AE) was a major complication. If so, the study subject was considered a failure.
Results
Two-level AEs Deemed to be a Major Complication
Major Complications Determined Via CEC Review of Adverse Events (Two-level) |
Treatment Group |
Adverse Event by Subject |
Fusion
(n=105) |
Pseudoarthrosis |
Worsening arm pain |
Worsening neck pain |
Vocal cord paralysis |
Dysphagia |
Degenerative disc disease |
Mobi-C
(n=234) |
Recurrent arm pain |
Adjacent disc herniation |
Recurrent neck pain |
Poor function of device and poor attachment to the bone |
Dislodged device at C5-C6 (migration of >3 mm) |
Impaired light touch |
Dysphagia |
Headache |
Shoulder pain |