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Utility of positional (supine and prone) MRI for the diagnosis of adult filum terminale syndrome

Diagnostic utility of positional (supine and prone) MRI in adult filum terminale syndrome: a case-control study - TFT-MRI

Status
Recruiting
Phases
Unknown
Study type
Unknown
Source
JPRN
Registry ID
JPRN-UMIN000060970
Enrollment
40
Registered
2026-03-18
Start date
2026-03-17
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

Adult filum terminale syndrome (including suspected cases)

Interventions

None listed

Sponsors

Shinshu University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: <Case group> Age over 18 years Patients with low back pain, lower extremity symptoms, or urinary dysfunction diagnosed with filum terminale syndrome by a physician No obvious filum lipoma or marked thickening on supine MRI Availability of both supine and prone MRI for evaluation <Healthy control group> Age over 18 years No low back or lower extremity symptoms No history of lumbar spine surgery Able to undergo MRI and provide written informed consent

Exclusion criteria

Exclusion criteria: Presence of other significant spinal pathologies such as severe lumbar spinal stenosis, large disc herniation, or spina bifida History of extensive lumbosacral surgery or severe scoliosis making MRI evaluation difficult Contraindications to MRI (e.g., cardiac pacemaker) Pregnancy

Design outcomes

Primary

MeasureTime frame
Relative displacement rate (%) of the conus medullaris between supine and prone positions assessed on MRI at the time of imaging—

Countries

Japan

Contacts

Public ContactTetsuhiko Mimura

Shinshu University School of Medicine Department of Orthopaedic Surgery

tettim3@yahoo.co.jp0263372659

Outcome results

None listed

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