Hidden Blood Loss after Anterior versus Posterior Spinal Stabilization – A Retrospective Cohort Study

Hidden Blood Loss after Anterior versus Posterior Spinal Stabilization – A Retrospective Cohort Study - HBL-Spine

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00038801

Enrollment

180

Registered

2026-02-05

Start date

2026-02-18

Completion date

Unknown

Last updated

2026-03-02

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

Conditions

Vertebral body fractures

Interventions

Group 1: Retrospective observational study: patients undergoing anterior spinal stabilization

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: • Surgical anterior or posterior stabilization of the thoracic or lumbar spine • Complete documentation of pre- and postoperative laboratory parameters (hemoglobin, hematocrit) • Documentation of intraoperative blood loss

Exclusion criteria

Exclusion criteria: • Combined anterior-posterior procedures • Revision surgeries • Preoperative blood transfusion • Known coagulation disorders or relevant hematological diseases • Incomplete datasets

Design outcomes

Primary

Measure	Time frame
Hidden blood loss (in milliliters), calculated based on perioperative changes in hematocrit, taking into account the estimated blood volume and the documented intraoperative blood loss.	—

Secondary

Measure	Time frame
• Total blood loss • Postoperative decrease in hemoglobin levels • Perioperative transfusion rate • Length of hospital stay • Association of hidden blood loss with operative time, number of instrumented segments, and body mass index	—

Countries

Germany

Contacts

Public ContactKatharina Blanka Jäckle

Universitätsmedizin Göttingen

katharina.jaeckle@med.uni-goettingen.de+495513962462

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Mar 14, 2026