Effectiveness and limitations of decompression alone for lumbar spinal stenosis with degenerative spondylolisthesis

Effectiveness and limitations of a unique postoperative course of less/minimally invasive decompression alone for lumbar spinal stenosis with degenerative spondylolisthesis

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-jRCT1062200049

Enrollment

100

Registered

2021-01-25

Start date

2014-04-24

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

lumbar spinal stenosis with degenerative spondylolisthesis degenerative spondylolisthesis, lumbar spinal stenosis

Interventions

treatment (microscopic neural decompression)

less invasive decompression

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: The presence of lumbar spinal stenosis with a slipping rate 10% or more at L4-5 in the neutral position on a standing radiograph and microscopic decompression performed at L4-5 without spinal fusion

Exclusion criteria

Exclusion criteria: Any previous lumbar surgery, concomitant disc herniation, radiculopathy due to intra- and/or extra-foraminal stenosis, female patients receiving hormone replacement therapy for postmenopausal conditions and/or who had an oophorectomy prior to surgery or during the follow-up period.

Design outcomes

Primary

Measure	Time frame
The Japanese Orthopedic Association (JOA) score, a visual analog scale (VAS) for low back pain and leg symptoms, radiographic evaluation (slipping rate, translational mobility, and angular mobility)	—

Secondary

Measure	Time frame
Complications or any harmful effect, evaluation of reoperation cases	—

Contacts

Public ContactAkira Miyauchi

Saka-midorii Hospital

lahlw@success.name+81-82-879-0099

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026