Spondylolisthesis can develop muscle spasms from instability. The muscles work overtime to stabilize the slip level. Toward the end of the day or with increased activity, the muscles are fatigued and will spasm due to lactic acidosis.
You are correct in that stretching is generally contraindicated in the treatment of these slips. You want the spine to be more fibrotic (stiff) so that the muscles do not have to work as hard. One of the treatments is strengthening the muscles so that these muscles fatigue at a slower rate under stress. Spasm will still occur under greater load but that time to spasm will be increased.
Dr. Corenman
PLEASE REMEMBER, THIS FORUM IS MEANT TO PROVIDE GENERAL INFORMATION ON SPINE ANATOMY, CONDITIONS AND TREATMENTS. TO GET AN ACCURATE DIAGNOSIS, YOU MUST VISIT A QUALIFIED PROFESSIONAL IN PERSON.
Donald Corenman, MD, DC is a highly-regarded spine surgeon, considered an expert in the area of neck and back pain. Trained as both a Medical Doctor and Doctor of Chiropractic, Dr. Corenman earned academic appointments as Clinical Assistant Professor and Assistant Professor of Orthopaedic Surgery at the University of Colorado Health Sciences Center, and his research on spine surgery and rehabilitation has resulted in the publication of multiple peer-reviewed articles and two books.