1 doctor weighed in:

What does Grade 1 anterolisthesis of L5 on S1 secondary to bilateral pars defects mean ?

1 doctor weighed in
Dr. Edward Hellman
Orthopedic Surgery

In brief: Spondylolisthesis

Isthmic spondylolisthesis is another term for what you are describing.
Basically one of the vertebrae is shifted foreword over the other. What has caused this condition in your case is a "defect" if the pars interarticularis, which usually stabilizes the spine. This condition can be associated with back and leg pain and difficulty standing or walking for long periods. Many treaent options.

In brief: Spondylolisthesis

Isthmic spondylolisthesis is another term for what you are describing.
Basically one of the vertebrae is shifted foreword over the other. What has caused this condition in your case is a "defect" if the pars interarticularis, which usually stabilizes the spine. This condition can be associated with back and leg pain and difficulty standing or walking for long periods. Many treaent options.
Thank
Get help from a real doctor now
Dr. Eric Weisman
Board Certified, Neurology
34 years in practice
9M people helped
Continue
111,000 doctors available