Comparison of health care costs between aseptic and two stage septic hip revision

Area of Science:

• Orthopedic Surgery
• Health Economics
• Biomedical Engineering

Background:

• Total hip arthroplasty (THA) revisions are increasing, posing a significant financial challenge.
• Distinguishing between septic and aseptic failures is crucial for understanding cost variations.

Purpose of the Study:

• To analyze and compare the direct variable costs of revision THA for septic versus aseptic failure.
• To identify key cost drivers in managing septic and aseptic THA complications.

Main Methods:

• Retrospective consecutive analysis of 144 patients undergoing revision THA between January 2009 and March 2012.
• Inclusion of patients with both septic (n=30) and aseptic (n=114) THA failure.
• Detailed cost assessment of major variable direct costs for each group.

Main Results:

• Septic THA revision costs averaged $14,379.8, substantially higher than aseptic revision costs at $5,487.4.
• Septic cases involved longer hospital stays (40.2 days vs. 15.6 days) and higher implant costs ($3,930.9 vs. $2,298.2).
• The septic implantation procedure was, on average, $3,384.6 more expensive (P < .001).

Conclusions:

• Management of septic THA loosening incurs significantly greater direct variable costs compared to aseptic loosening.
• The two-stage exchange technique and elevated implant expenses are primary contributors to the higher cost of septic THA revisions.
• These findings highlight the economic impact of septic complications in THA revision surgery.