A prospective randomized controlled trial comparing unilateral pedicle screw versus bilateral pedicle screw in transforaminal lumbar interbody fusion for degenerative spondylolisthesis.

A prospective randomized controlled trial comparing unilateral pedicle screw versus bilateral pedicle screw in transforaminal lumbar interbody fusion for degenerative spondylolisthesis. - A prospective randomized controlled trial comparing unilateral pedicle screw versus bilateral pedicle screw in transforaminal lumbar interbody fusion.

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000007833

Enrollment

Registered

2012-04-25

Start date

2006-10-01

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 degenerative spondylolisthesis.

Interventions

Transforaminal lumbar interbody fusion with unilateral pedicle screw Transforaminal lumbar interbody fusion with bilateral pedicle screw

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients scheduled for one-level TLIF for lumbar degenerative spondylolisthesis

Exclusion criteria

Exclusion criteria: Patients who show isthmic spondylolisthesis, vertebral fractures, tumors, or infectious diseases.

Design outcomes

Primary

Measure	Time frame
Surgical invasiveness and postoperative pain	—

Secondary

Measure	Time frame
Surgical time Intraoperative bleeding Post-operative pain (visual analogue scale)	—

Countries

Japan

Outcome results

None listed

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