Facet-sparing decompression of lumbar spinal stenosis using the minimally invasive crossover surgical approach

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00014293

Enrollment

Registered

2018-03-28

Start date

2018-04-23

Completion date

Unknown

Last updated

2025-04-07

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

Conditions

M48.06

Interventions

Group 1: Retrospective analysis of patients with spinal stenosis and steep facet joint angels of <35° who underwent minimally invasive bilateral partial hemilaminectomy with bilateral crossover decomp

Eligibility

Sex/Gender

All

Age

18 Years to 90 Years

Inclusion criteria

Inclusion criteria: Retrospective inclusion of patients with spinal stenosis and steep facet joint angels of <35° who underwent minimally invasive bilateral partial hemilaminectomy with bilateral crossover decompression between October 2016 and October 2017.

Exclusion criteria

Exclusion criteria: Lumbar spinal stenosis with at least one of the two facet joint angles =35°.

Design outcomes

Primary

Measure	Time frame
Improvement of subscales "Symptom severity scale" and "Physical function scale" of the Swiss Spinal Stenosis Questionnaire by 0.5 points at least 3 months postoperatively compared to preoperative.	—

Secondary

Measure	Time frame
Clinical and neurological status at least 3 months postoperatively compared to preoperative: questionnaires (ODI, VAS, SF-8), maximum walking distance, neurological examination. Recording of complications and reoperations.	—

Countries

Germany

Contacts

Public ContactJan-Helge Klingler

Universitätsklinikum FreiburgKlinik für Neurochirurgie

jan-helge.klingler@uniklinik-freiburg.de+49 761 270 50010

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026