The coccyx, or tailbone, is a small bone like tip at the very bottom of the spine below the sacrum. The coccyx has limited motion with a fibrocartilaginous joint between the sacrum and coccyx. The coccyx is tasked with a very important job of anchoring a tether, called the filum terminale, to the end of the spinal cord, conus medullaris.

Much more common than fracture, post-traumatic coccyx subluxation classically occurs with injuries that cause the buttocks to be struck forcefully. Common causes of coccyx subluxation are due to hard falls onto buttocks, for example: skiing, 4-wheeling, snow sledding with jumps, and snowmobiling on rough terrain.

Post injury coccyx subluxation may cause nerve interference in many places from the head to the toes, though it is common to have extreme point pain at the coccyx proper, coccydynia. Past falls can harbor a non-symptomatic coccyx subluxation causing festering, non-acute, seemingly unconnected symptoms.

Chronic and acute coccyx subluxation misalignments are measured on X-rays to determine the three-directional problem. Based on the biometrics, a 3-directional corrective adjustment is employed to properly unlock and align this vital final segment of the spinal column.