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A study on clinical outcomes of lumbar disc herniation surgery and evaluation of disc degeneration by MRI

A study on clinical outcomes of lumbar disc herniation surgery and evaluation of disc degeneration by MRI - A study on clinical outcomes of lumbar disc herniation surgery and evaluation of disc degeneration by MRI

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000042282
Enrollment
40
Registered
2020-11-01
Start date
2020-11-15
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 disc herniation

Interventions

None listed

Sponsors

Hokkaido University Hospital
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: (1) Patients with lumbar disc herniation to plan discectomy (2) MRI evidence of intervertebral disc herniation corresponding to symptoms (3) Unresponsive to 6 consecutive weeks of therapy or experiencing acute/uncontrolled leg pain (80 mm or more out of 100 mm with VAS) (4) Candidate for a one-level lumbar discectomy procedure (5) Persistent and predominant leg pain (40 mm or more out of 100 mm with VAS) (6) Aged 20-50 (7) Informed consent is obtained after the sufficient explanation of this study

Exclusion criteria

Exclusion criteria: (1) Previous surgery involving index lumbar level (2) Prior or planned procedure to fuse the lumbar spine (3) The posterior bending angle of the intervertebral disc is recognized in any of the anterior bending, middle, and posterior bending of the lumbar spine X-ray image (4) Greater than grade I spondylolisthesis or retrolisthesis at affected level (5) Cauda equina syndrome (6) Acute local or systemic infection (7) Active malignancy or other similar comorbidities (8) Drug-dependent patients or alcohol dependence patients (9) Patients suffering from mental illness (10) Current fracture, tumour and/or deformity of the lumbar spine (11) Currently breast-feeding, pregnant, pregnancy during the trial period, or cannot do a highly effective contraceptive method (12) Other clinical trials within 4 weeks (13) Presence of any implanted metal or other contraindication to MRI (14) Contraindicated for this study due to other reasons

Design outcomes

Primary

MeasureTime frame
1) VAS 2) FFD 3) SLR test 4) Modified Schober's test 5) JOA score 6) SF-36 7) ODI 8) RDQ 9) JOABPEQ 10) MRI signal change 11) Evaluation surgery 12) Safety

Countries

Japan

Contacts

Public ContactNozomi Yokota

Hokkaido University Hospital Clinical Research and Medical Innovation Center

nozomi.yokota@pop.med.hokudai.ac.jp011-706-7735

Outcome results

None listed

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