Related Experiment Video
Updated: Jan 8, 2026
Novel Mini-open Transforaminal Lumbar Interbody Fusion
Published on: June 6, 2025
Albumin Levels Stratify Risk of 30-Day Complications Following Posterior Cervical Fusion
Philip M Parel1, Abhisri Ramesh1, Eric Cui1
1Department of Orthopaedic Surgery, The George Washington University School of Medicine and Health Sciences, Washington, DC.
Insights
Preoperative albumin levels can predict 30-day complications after posterior cervical fusion (PCF). Lower albumin levels correlate with higher complication risks, aiding surgeons in patient stratification for improved outcomes.
Area of Science:
- Neurosurgery
- Orthopedic Surgery
- Clinical Chemistry
Background:
- Posterior cervical fusion (PCF) rates have increased, with complications in up to 25% of cases.
- Hypoalbuminemia is a potential risk factor for post-spine surgery complications, but precise thresholds are undefined.
- Limited literature exists on preoperative albumin's impact on PCF outcomes.
Purpose of the Study:
- To establish data-driven preoperative albumin thresholds for risk stratification of 30-day complications after PCF.
- To identify specific albumin levels associated with increased complication risk following PCF.
Main Methods:
- Retrospective cohort study using a national database of patients undergoing PCF.
- Stratum-specific likelihood ratio (SSLR) analysis to determine albumin thresholds.
- Multivariable regression to assess the risk of 30-day major and minor complications.
Main Results:
- Three preoperative albumin strata were identified: 1-3.2 g/dL, 3.2-3.6 g/dL, and 3.6+ g/dL.
- Compared to the 3.6+ g/dL group, the 1-3.2 g/dL (OR: 3.02) and 3.2-3.6 g/dL (OR: 1.65) groups had significantly higher odds of 30-day complications.
- A clear, dose-dependent relationship exists between lower albumin levels and increased complication risk.
Conclusions:
- Data-driven preoperative albumin thresholds can effectively stratify 30-day complication risk after PCF.
- This is the first study to demonstrate the variable and stratifiable risk associated with preoperative albumin levels in PCF.
- Findings support using albumin levels for informed surgical decision-making and improved patient outcomes.
Study Design:
Retrospective cohort study.
Objective:
The purpose of this study was to establish preoperative albumin thresholds to stratify the risk of 30-day complications after PCF.
Summary Of Background Data:
Over the past 2 decades, rates of posterior cervical fusion (PCF) have risen significantly, coinciding with advancements in surgical techniques and an aging population, but with complications occurring in up to 25% of cases. Hypoalbuminemia may increase risk for complications after spine surgery, but there are no studies that utilize data-driven methods to derive precise thresholds to risk-stratify patients. Although the association between malnutrition and subpar outcomes has been investigated, there remains a paucity of literature examining PCF.
Methods:
A retrospective cohort analysis was performed using a national database. Patients with a preoperative measurement of albumin before PCF were included, whereas patients undergoing multilevel PCF were excluded. Stratum-specific likelihood ratio (SSLR) analysis was conducted to determine data-driven albumin strata that minimized the likelihood of complications within 30 days of PCF. Multivariable regression was utilized to stratify the risk of 30-day major and minor complications after PCF.
Results:
SSLR analysis identified 3 albumin strata: 1-3.2g/dL, 3.2-3.6g/dL, and 3.6+g/dL before surgery. Compared with the 3.6+ g/dL stratum, the 1-3.2g/dL (OR: 3.02) and 3.2-3.6g/dL (OR: 1.65) cohorts had significant and sequentially increasing odds of 30-day all-cause complications after PCF ( P < 0.05 for all).
Conclusions:
This study established data-driven preoperative albumin thresholds that correlate with an increased risk of 30-day all-cause complications after PCF. To the best of our knowledge, this is the first study to demonstrate the variable and stratifiable risk of complications on the basis of preoperative albumin levels. These findings assist spine surgeons in stratifying patient risk based on preoperative albumin levels, enabling more informed decision-making and potentially improving patient outcomes.
Related Concept Videos
01:22Aneurysm IV: Nursing Management
01:30Acute Kidney Injury IV: Diagnostic Studies and Prevention
01:16Kidney Transplant III: Nursing Management
01:29Drug Distribution: Plasma Protein Binding
01:29Acute Kidney Injury III: Clinical Manifestations
01:23Peripheral Artery Disease V: Postoperative Nursing Management