Prospective study and multivariate analysis of the incidence of C5 palsy after cervical laminoplasty.

Study Design.A prospective comparative study about the incidence of postoperative C5 palsy and multivariate analysis of the risk factors of C5 palsy.Objective.To clarify the risk factors of occurrence of C5 palsy after laminoplasty (LP) by comparing the 2 surgical procedures of open-door and double-