Impact of morbid obesity (BMI >40 kg/m2) on complication rate following minimally invasive transforaminal lumbar interbody fusion

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00007996

Enrollment

Registered

2015-04-08

Start date

2015-04-06

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

M53.26 M43.16

Interventions

Group 1: Assessment of perioperative and postoperative complications in patients with morbid obesity (BMI >40 kg/m2) who underwent MIS TLIF between March 2009 and February 2014 due to lumbar instabili

Eligibility

Sex/Gender

All

Age

18 Years to 99 Years

Inclusion criteria

Inclusion criteria: Patients with morbid obesity (BMI >40 kg/m2) and matched normal weight patients (BMI 20-25 kg/m2) who underwent MIS TLIF between March 2009 and February 2014 due to lumbar instability or degeneration.

Exclusion criteria

Exclusion criteria: Patients without morbid obesity or not normal-weight patients in the matched group. MIS TLIF due to infection or trauma.

Design outcomes

Primary

Measure	Time frame
Occurrence of major complications within 30 days of MIS TLIF: death, myocardial infarction, stroke, pulmonary embolism, severe pneumonia / mechanical ventilation, reoperation, new motor deficit grade = 3/5.	—

Secondary

Measure	Time frame
Occurrence of minor complications within 30 days of MIS TLIF: new motor deficit grade > 3/5, slight pneumonia / transient dependency on oxygen, postoperative confusion, urinary tract infection, anemia requiring transfusion, deep vein thrombosis, intraoperative durotomy, hepatic impairment, depressive episode, sacroiliac joint syndrome. Duration of surgery, length of hospital stay, need for analgesics (WHO level).	—

Measure

Time frame

Occurrence of minor complications within 30 days of MIS TLIF: new motor deficit grade > 3/5, slight pneumonia / transient dependency on oxygen, postoperative confusion, urinary tract infection, anemia requiring transfusion, deep vein thrombosis, intraoperative durotomy, hepatic impairment, depressive episode, sacroiliac joint syndrome. Duration of surgery, length of hospital stay, need for analgesics (WHO level).

—

Countries

Germany

Contacts

Public ContactJan-Helge Klingler

Neurochirurgische Universitätsklinik Freiburg

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

Outcome results

None listed

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