Antibiotic Prophylaxis for Hallux Rigidus Repair

1. Surgical Classification & Need for Prophylaxis

Hallux rigidus repair is classified as a clean orthopedic (Class I) joint arthrotomy, requiring prophylaxis aimed at skin flora, especially staphylococci. (European Surgical Prophylaxis Guidelines 2019; American Academy of Orthopaedic Surgeons 2006) [3][1]

Cefazolin 2 g IV administered as a slow infusion within 60 minutes before skin incision (single pre‑operative dose). (American Academy of Orthopaedic Surgeons 2006; European Surgical Prophylaxis Guidelines 2019) [3][1]
Re‑dose with cefazolin 1 g IV if the operative time exceeds 4 hours to maintain therapeutic tissue levels. (European Surgical Prophylaxis Guidelines 2019) 4
Prophylaxis duration is limited strictly to the operative period, not exceeding 24 hours post‑operatively. (American Academy of Orthopaedic Surgeons 2006; European Surgical Prophylaxis Guidelines 2019) [3][1]

Clindamycin 900 mg IV as a single slow infusion given within 60 minutes before incision. (European Surgical Prophylaxis Guidelines 2019) 5
Vancomycin 30 mg/kg IV infused over 120 minutes, with the infusion completed at least 30 minutes before the first incision. (European Surgical Prophylaxis Guidelines 2019) 4

The prophylactic antibiotic must be administered no earlier than 60 minutes before incision to ensure adequate tissue concentrations throughout the procedure. (American Academy of Orthopaedic Surgeons 2006) 3
When a tourniquet is used, the infusion should be finished before tourniquet inflation. (American Academy of Orthopaedic Surgeons 2006) 3

A meta‑analysis of 8,307 patients showed that a single pre‑operative dose reduced superficial and deep surgical‑site infections (relative risk 0.4; 95 % CI 0.24–0.67). (American Academy of Orthopaedic Surgeons 2006) 3
Extending prophylaxis beyond 24 hours increases adverse drug reactions, antibiotic‑associated diarrhea, and antimicrobial resistance without additional infection‑prevention benefit. (American Academy of Orthopaedic Surgeons 2006) 3

If the repair includes foreign material (prosthetic implants, bone grafts, fixation hardware), the same cefazolin protocol applies (2 g pre‑incision, 1 g re‑dose if >4 h, max 24 h). (European Surgical Prophylaxis Guidelines 2019) 1

The prophylaxis is intended to cover the most common organisms in clean orthopedic surgery: Staphylococcus aureus (most frequent) and Streptococci. (American Academy of Orthopaedic Surgeons 2006) 3

Recommendations are based on Grade A evidence from multiple international sources, including the 2019 European Surgical Prophylaxis Guidelines and the 2006 American Academy of Orthopaedic Surgeons guidelines; both consistently demonstrate efficacy of single‑dose prophylaxis and harm from prolonged courses. (European Surgical Prophylaxis Guidelines 2019; American Academy of Orthopaedic Surgeons 2006) [1][2][4][5]3