Weight-based, anti-Xa guided enoxaparin after spine trauma surgery: target attainment and safety in a retrospective cohort - Scorecard - MDSpire

Weight-based, anti-Xa guided enoxaparin after spine trauma surgery: target attainment and safety in a retrospective cohort

  • By

  • Dallas L. Sheinberg

  • David Travis Johnston

  • Brendan T. O'Reilly

  • Gabriel Galan Castro

  • Jawad R. Khazaal

  • Joseph S. Withrow

  • Duncan J. Trimble

  • Ankush Chandra

  • Anthony J. Lim

  • Derek S. Sheinberg

  • Jennifer Zaragoza

  • Wen Li

  • John R. Williams

  • June 24, 2026

  • 0 min

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Clinical Scorecard: Enoxaparin Dosing Guided by Anti-Xa Levels in Postoperative Spine Trauma Patients: A Retrospective Analysis of Target Achievement and Safety

At a Glance

CategoryDetail
ConditionPostoperative venous thromboembolism (VTE) in spine trauma patients
Key MechanismsWeight-based enoxaparin dosing with anti-Xa level monitoring
Target PopulationAdults (≥18 years old) undergoing surgery for traumatic spine injuries
Care SettingLevel I trauma center

Key Highlights

  • Symptomatic VTE rates were low (1.1% in anti-Xa cohort vs. 1.6% in fixed dose cohort)
  • 28% of patients in the anti-Xa cohort required dose escalation
  • No postoperative epidural hematomas occurred
  • Bleeding requiring transfusion did not differ between groups
  • Weight-based dosing improved anti-Xa target attainment

Guideline-Based Recommendations

Diagnosis

  • Monitor anti-Xa levels 4 hours after the third dose of enoxaparin

Management

  • Use weight-based enoxaparin dosing with anti-Xa-guided titration

Monitoring & Follow-up

  • Assess for symptomatic VTE and bleeding complications postoperatively

Risks

  • Consider risk of spinal epidural hematoma with escalated dosing

Patient & Prescribing Data

Adults undergoing surgical treatment for traumatic spine injuries

Initial dosing of enoxaparin is 30 mg every 12 hours if <90 kg, 40 mg every 12 hours if ≥90 kg

Clinical Best Practices

  • Initiate pharmacologic prophylaxis within 24 hours post-surgery
  • Combine mechanical VTE prophylaxis with pharmacologic measures
  • Encourage early mobilization postoperatively

Related Resources & Content

Original Source(s)

Weight-based, anti-Xa guided enoxaparin after spine trauma surgery: target attainment and safety in a retrospective cohort

  • by Dallas L. Sheinberg, David Travis Johnston, Brendan T. O'Reilly, Gabriel Galan Castro, Jawad R. Khazaal, Joseph S. Withrow, Duncan J. Trimble, Ankush Chandra, Anthony J. Lim, Derek S. Sheinberg, Jennifer Zaragoza, Wen Li, John R. Williams

  • June 24, 2026

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