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General Orthopaedics

OUR PROPHYLAXIS STRATEGY ACHIEVED 0 % EARLY SURGICAL SITE INFECTION AFTER TOTAL HIP ARTHROPLASTY

The International Society for Technology in Arthroplasty (ISTA), 28th Annual Congress, 2015. PART 3.



Abstract

Introduction

The purpose of this study was to introduce our perioperative prophylaxis method for infection and clarify surgical site infection rate in our patients performed total hip arthroplasty (THA).

Method

Two hundred and eighty four THA (including revision 18 cases) performed by single surgeon between Oct. 2007 and Jan. 2013 were evaluated. The mean age of patients was 65.7 years old. The male to female ratio was 46 to 238. BMI was 23.6. Ninety patients (32%) were compromised host suffering from diabetes mellitus, rheumatoid arthritis, autoimmune disease, history of malignant tumor, hemodialysis or skin disease at surgical site respectively. At preoperative period, we checked decayed tooth, alveolar pyorrhea, hemorrhoids, and leg skin condition. In addition, we examined culture of nasal cavity. At the day of surgery, patient took a shower just before entering surgical room. All of THA was performed in clean room NASA class 100. Surgeons and assistant nurse put on nonwoven fabric gown, space suit and double rubber gloves. We wiped surgical site leg by gauze impregnated by 0.5% chlorhexidine alchohol to eliminate skin bacteria twice just before surgeons scrubbing hands. Surgical site was covered by povidone iodine containing drape. Surgeons or nurse changed gloves when glove was broken at each time. We cleaned surgical field by pulse washer whenever necessary. We did not use drain except for 5 revision THAs. Regarding to prophylactic antibiotics usage, we administered cefcapene pivoxil orally the day before surgery. Drip infusion antibiotics (PIPC: until Oct. 2008, CEZ: after Oct. 2008) was administered at the period of 30 min. before surgery and 4 hours after surgery in case of prolonged surgical time (4 hours >). Skin closure was performed by staple and covered by gauze until May 2010. After that, we used surgical tape and transparent water proof sheet. After finishing surgery, antibiotic was administered 8 hours interval at surgery day and 12 hours interval for additional two days. In case multi-drug resistant bacteria (MRSA, MRSE) was positive in nasal culture, we applied mupirocin ointment to nasal cavity for 3 days before surgery and administered vancomycin (from Aug. 2011) or linezolid (from 2012) for prophylactic antibiotics in perioperative period.

Results

Multi-drug resistant bacteria was detected from nasal cavity in 23 patients (8%). The mean operation time was 194 min (due to education for young surgeon). Intraoperative bleeding was 598g. Length of skin incision was 13.6 cm. Intraoperative wash volume was 4500 ml. The infection rate were 0 % in early period and 0.7 % (two case) in late period respectively. One infected case was 75 years old female. Deep infection was occurred 3 years after surgery. She was administered steroid and immunosuppressive drug due to metal allergy after total knee arthroplasty. The other case was 64 years old female. Superficial infection happened 3 months after THA. The patient was suffered from collagen disease and diabetes.

Conclusion

Our prophylaxis method for surgical site infection of THA achieved 0 % in early infection and 0.7% late chronic infection respectively.


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