Wolan-Nieroda A, et al. - Investigators assessed 41 individuals to study the active cervical range of motion after types II and III odontoid fracture treated with anterior odontoid screw fixation successfully and also to explore the association between the range of motion of the head and duration of collar usage, neck pain, quality of life, and age of the candidates. With a longer duration corresponding to poorer spine mobility at the end of the treatment, spine mobility was found associated with the duration of hard collar usage following the operation in the study group. They observed a statistically significant correlation in the case of extension and axial rotation. They reported a negative relationship between the range of motion and the patients' age ie, the older the candidate had the poorer spinal mobility, in the study group.