13) Belfi LM, et al. "Computerized Tomography Evaluation of Spondylolysis and Spondylolisthesis in Asymptomatic Patients. Spine 2006; 31:E907-910.
Just like spondylolysis and isthmic spondylolisthesis, people with degenerative spondylolisthesis often respond well to non-operative care (medication, physical therapy, low-force chiropractic care, acupuncture, lumbar bracing, facet injections, and/or epidural steroid injections). However, for patients who were refractory to such conservative treatment, surgical intervention may be needed. 
On the other hand, increased age, lumbar lordosis, and BMI (how heavy you are) were all significantly related to the presence of degenerative spondylolisthesis. 
Degenerative Spondylolisthesis - Spine - …
Have A Pars Defect at L L It Might Be Spondylolisthesis L degenerative spondylolisthesis repaired with an L lumbar decompression instrumented fusion and reduction of spondylolisthesis
Degenerative spondylolisthesis versus ..
Listhesis of l on l Figure Preoperative X ray a and computed tomography CT scan c of the lumbosacral spine showing grade III listhesis of L over L
level low grade lumbar degenerative versus isthmic spondylolisthesis.
Degenerative Spondylolisthesis Orthopedic Spine Surgeon CO The postoperative plain X ray films show a successful L wide laminectomy and transforaminal lumbar
In degenerative spondylolisthesis, ..
The final ancillary observation that may aid in the detection of spondylolysis is an abnormal wedging of the posterior aspect of the vertebral body at the level of the pars defect. This finding is a well-known radiographic finding that occurs at the level of spondylolisthesis. It is unclear if this finding is an effect of the spondylolisthesis, a predisposing condition, or a combination of both. On sagittal MR images, wedging of the posterior vertebral body is seen both in patients with spondylolisthesis and in those with spondylolysis and no significant subluxation.8 Therefore, such wedging may suggest the presence of pars defects (Figure 8).
of isthmic spondylolisthesis (or degenerative ..
(7a) T1- and (7b) T2- weighted sagittal images of the lumbar spine in a 35 year-old male who presented with 4-5 months of bilateral lower extremity pain are provided. A defect of the pars interarticularis is seen (arrows) with cortical interruption and a resultant grade I spondylolisthesis. Reactive marrow changes are also present adjacent to the pars defect with increased signal within the marrow (arrowheads) on both the T1 and T2 weighted images.