A. Studies have shown that 20% of halo patients develop pin site infections. Bone remodeling is also possible. Either of these conditions may make it necessary to relocate the affected pin site. Ossur halos provide the most threaded holes, i.e., more options initially, and when pin relocation is necessary.
A. Low Profile means that the uprights usually do not extend above the ring. Also, they are angled slightly so they don't project straight up from the vest. This means that ambulatory patients will be less likely to get "hung up" on door frames, car doors, etc. All Ossur halos utilize Low Profile Superstructures.