Septic versus aseptic hip revision: how different?

Area of Science:

• Orthopedic Surgery
• Infectious Disease Management
• Biomaterials Engineering

Background:

• Conflicting results exist comparing aseptic and septic hip revision surgeries.
• Investigating two-stage revision for septic hip prostheses versus aseptic revision is crucial for optimizing patient outcomes and resource allocation.

Purpose of the Study:

• To compare medium-term hip function, quality of life, and direct hospital costs between two-stage revision for septic hip prostheses and aseptic revision surgery.
• To evaluate the efficacy of preformed antibiotic-loaded spacers and uncemented prostheses in septic hip revisions.

Main Methods:

• Prospective evaluation of 80 patients (40 aseptic, 40 septic) undergoing hip revision.
• Patients matched for gender, age, and bone loss; utilized Harris hip score, WOMAC, and SF-12 for outcomes.
• Follow-up of minimum 2 years (average 4 years) with antibiotic-loaded cement spacers and uncemented prostheses in septic revisions.

Main Results:

• No significant difference in infection recurrence or aseptic loosening between groups.
• Similar improvements in Harris hip scores and patient-reported quality of life (SF-12, WOMAC) were observed.
• Septic revisions (Group S) showed twice the complication rate and 2.2 times higher hospital costs compared to aseptic revisions (Group A).

Conclusions:

• Two-stage revision for infected hip prostheses yields comparable medium-term success rates to non-infected revisions.
• The procedure is associated with a higher complication rate and increased direct hospital costs.
• Uncemented revision prostheses and antibiotic-loaded spacers are effective in managing septic hip revisions but require careful consideration of associated risks and costs.