Adult Scoliosis:

There are two main types of adult scoliosis – pre-existing (usually adolescent scoliosis), which becomes known as Adolescent Scoliosis in Adult (ASA); and the development of a new scoliosis, usually as a result of spinal degeneration. This is known as degenerative de novo scoliosis (DDS).

Adults with ASA may not have previously been diagnosed with adolescent scoliosis. ASA may be progressive or stable, depending on the individual case. In those with a previous diagnosis of AIS, monitoring progression is easy as a comparison of current x-rays to adolescent x-rays can be done. In those where the scoliosis is discovered in adulthood, determining if the scoliosis is a pre-existing adolescent condition or a new onset of degenerative scoliosis can be difficult.

DDS usually develops in middle-aged and older adults and is typically seen starting around 45 years of age onwards. As DDS is a result of degenerative instability, it is almost always progressive. However, the main complaint usually associated with DDS is lower back pain.