Does using dual antibiotic cement lower surgical site infection risk in hip replacements?
Surgical site infections (SSIs) after hip replacement are serious complications. Antibiotic-loaded bone cement is commonly used to prevent them. Dual antibiotic cement (containing two antibiotics) may work better than single antibiotic cement. Large studies show that dual cement significantly reduces infection risk, particularly for hemiarthroplasty (partial hip replacement).
What the research says
A 2025 meta-analysis of 8 studies with nearly 37,000 patients found that dual antibiotic-loaded bone cement (DALBC) reduced SSI risk by about 36% compared to single antibiotic cement (odds ratio 0.64) 18. This benefit was strongest in hemiarthroplasty patients, where risk dropped by about 52% (odds ratio 0.48) 18. For total hip arthroplasty, the difference was not statistically significant 18. Another study on hip and knee revision for infection found that high-dose dual cement (gentamicin and clindamycin) cut the 2-year SSI rate from 26% to 13% 7. A separate analysis of hip hemiarthroplasties showed infection rates of 1.2% with high-dose dual cement versus 3.4% with low-dose single cement 9. Importantly, the dual cement did not increase antibiotic resistance overall, though one organism (Enterococcus) was more common in the dual cement group 9.
What to ask your doctor
- Is dual antibiotic cement recommended for my type of hip replacement (hemi vs total)?
- What specific antibiotics are in the cement and are there any risks of resistance?
- How does my personal infection risk (age, diabetes, etc.) affect the choice of cement?
- Are there any downsides or extra costs to using dual antibiotic cement?
- Should I consider dual cement if I have a history of allergies to antibiotics?
This question is drawn from common patient questions about this topic and answered using cited medical research. We do not provide individualized advice.