Comparative study of surgical technique for lumbar spinal canal stenosis. (spinous spritting laminectomy vs conventional laminectomy)

Comparative study of surgical technique for lumbar spinal canal stenosis. (spinous spritting laminectomy vs conventional laminectomy) - Comparative study of surgical technique for lumbar spinal canal stenosis. (spinous spritting laminectomy vs conventional laminectomy)

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000002786

Enrollment

Registered

2009-11-20

Start date

2004-12-01

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 spinal canal stenosis

Interventions

alternative use of conventional technique or spinous process splitting technique for patinets with lumbar spinal canal stenosis who have surgical indication

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) Presence of neurogenic claudication 2) Persistence of symptoms for more than six months in spite of conservative therapy. 3) Clinical symptoms and neurological signs in the lower limbs corresponding to the level of stenosis on magnetic resonance (MR) or myelograms. 4) Decompression necessary at a single level or two levels.

Exclusion criteria

Exclusion criteria: 1)Spinal canal stenosis due to congenital, spondylolytic, traumatic and iatrogenic causes. 2) Any previous operation in the lumbar area. 3) The presence of other specific spinal disorders (e.g., ankylosing spondylitis, neoplasm, or metabolic diseases). 4) Intermittent claudication resulting from peripheral arterial disease. 5) Severe osteoarthrosis or arthritis in the lower limbs. 6) Neurologic disease causing impaired function of the lower limbs, including diabetic neuropathy. 7) Psychiatric disorders. 8) Multiple levels spinal canal stenosis requiring decompression at three or more levels

Design outcomes

Primary

Measure	Time frame
Postoperative wound pain. Low back pain	—

Secondary

Measure	Time frame
JOA score, VAS, MRI finding, serum CRP and CPK concentration	—

Countries

Japan

Contacts

Public ContactMorio Matsumoto

Keio University, School of Medicine, Tokyo, Japan Department of Orthopedic Surgery,

03-3353-1211

Outcome results

None listed

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