Cost Analysis of Single-Level Lumbar Fusions

Area of Science:

• Spine surgery
• Health economics
• Orthopedics
• Neurosurgery

Background:

• Single-level lumbar fusion is a common spinal procedure.
• Understanding cost determinants is crucial for healthcare management.
• Variability in surgical costs impacts resource allocation.

Purpose of the Study:

• To analyze the determinants of direct costs associated with single-level lumbar fusions.
• To identify key factors contributing to cost variations.
• To explore potential avenues for cost reduction in spinal fusion procedures.

Main Methods:

• Retrospective cohort study of 532 adult patients undergoing primary single-level lumbar fusion.
• Data collected included demographic, surgical, and direct cost information (supplies, services, room/care, pharmacy).
• Exclusion criteria ensured a focused analysis on primary fusions without complex comorbidities or repeat surgeries.

Main Results:

• Direct costs ranged from $8,286 to $73,727 (median $21,781).
• Surgical approach significantly impacted cost, with posterior instrumented fusions without cages being least expensive.
• Surgical supplies (44%) and services (38%) were major cost components, driven by implants and operative time, respectively. Comorbidities influenced pharmacy costs and length of stay.

Conclusions:

• Spinal surgery costs exhibit high variability.
• Key cost drivers include surgical approach, implant utilization, operating room time, and length of hospital stay.
• Areas of high cost and variance present opportunities for cost savings and quality enhancement initiatives.