Retrospective assessment of antibiotic and tourniquet use in an ambulatory surgery center

Tourniquet Use During Open Reduction and Internal Fixation of Ankle Fractures - A Systematic Review and Meta-Analysis

The intra-operative use of tourniquet in open reduction and internal fixation (ORIF) of ankle fractures remains a topic of debate. The purpose of this study was to perform a systematic review and meta-analysis of randomized control trials (RCTs) comparing clinical outcomes of patients undergoing ankle ORIF with tourniquet use versus a control group where no tourniquet was used. A systematic review was performed with reference to Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines of the Pubmed, Scopus, Embase, and Cochrane Library databases. Studies were included if they were an RCT comparing tourniquet and no-tourniquet in ankle ORIF. Meta-analysis was performed using RevMan, and p-value <.05 was considered to be statistically significant. On completion of the literature search, a total of 4 RCTs including 350 ankles (52.6% males), with a mean age of 47.1 ± 5.7 years were included. There were 173 patients in the tourniquet group (T), versus 177 patients in the no tourniquet control group (NT), with nonsignificant differences between the groups for age, gender and body mass index demographics (all p > .05). There were significantly shorter duration of surgery, with significantly higher patient-reported rates of pain levels at day 2 postoperatively (both p < .001) in the T group. Additionally, there were significantly greater ranges of ankle motion at 6 weeks postoperatively (p = .03), with nonsignificant differences reported incidence of wound infections and deep vein thrombosis (p = .056 and p = .130 respectively) between the groups. In conclusion, current evidence suggests that although intraoperative tourniquet usage in cases of ankle ORIF results in significant reductions in duration of surgery, this may be at the expense of higher patient-reported pain scores and reduced range of motion postoperatively.

Risk Factors for Surgical Site Infections After Orthopaedic Surgery in the Ambulatory Surgical Center Setting

INTRODUCTION

This study was designed to determine the incidence of surgical site infections (SSIs) after orthopaedic surgery in an ambulatory surgery center (ASC) and to identify patient and surgical risk factors associated with SSI.

METHODS

Patients who underwent orthopaedic surgery at an ASC over a 6.5-year period were reviewed for evidence of SSI. Data on patient and surgical factors were collected, and stepwise multivariate logistic regression determined the risk factors for SSI.

RESULTS

The incidence of SSIs was 0.32%. Five independent factors were associated with SSI: anatomic area (odds ratio [OR] = 18.60, 11.24, 6.75, and 4.01 for the hip, foot/ankle, knee/leg, and hand/elbow versus shoulder, respectively), anesthesia type (OR = 4.49 combined general and regional anesthesia versus general anesthesia), age ≥70 (OR = 2.85), diabetes mellitus (OR = 2.27), and tourniquet time (OR = 1.01 per minute tourniquet time).

DISCUSSION

The risk of infection after orthopaedic surgery in ASCs is low, but patient and surgical factors are independently associated with SSIs.

Prevention of Infection in Foot and Ankle Surgery

The literature for prevention of surgical infection related primarily to foot and ankle surgery is sparse, with most attention on total joint replacement and abdominal surgery. Attention should be paid to preoperative, intraoperative, and postoperative elements, which can have an effect on the development of postoperative infection. Although antibiotic prophylaxis typically is discussed in isolation, inclusion of this step into the process enhances the overall evaluation of surgery with respect to infection. This evolution provides for better patient outcomes and decreases the likelihood of an infection incurred after foot and ankle surgery.

Antibiotic prophylaxis in foot and ankle surgery: a systematic review of the literature

Background

With the advent of bacterial resistance, it is important now more than ever to evaluate use of antibiotic chemoprophylaxis in foot and ankle surgery. Within this area of the body there may be less dissection, surgery time with smaller incisions and importantly smaller sizes of implanted fixation as compared to other bone and joint procedures. Our objective was to systematically evaluate the quality of evidence behind existing guidelines.

Methodology

A systematic literature search was performed: MEDLINE, CINHAL, EMBASE and the Cochrane library from 1990 up to March 2018. To avoid omitting any studies on the subject, Google Scholar was also used. The inclusion criterion were studies exploring perioperative antibiotic use, postoperative infection rates in elective foot and ankle surgery and studies associated with this subject evaluating antibiotic use in clean elective foot and ankle surgery. The exclusion criterion being studies upon contaminated or dirty surgery or those which were inclusive of procedures proximal to the foot and ankle.

Results

Overall 11 studies met the inclusion criteria. From the grading of evidence, 2 level one and 4 level two studies were recognised. These studies ranked relatively highly in comparison to 5 studies that were graded as level three and level four tiers of evidence. Results of SSI rates found within this systematic review ranged from 0% to 9.4% of overall postoperative infections encountered after foot and ankle surgery in the studies analysed.

Conclusion

Whilst fragmented, aspects of antibiotic chemoprophylaxis are established fields in elective surgery with a growing body of evidence. Evidence for antibiotic use however, specifically within elective foot and ankle surgery, is lacking. This systematic review is a seminal paper which delivers an impression of the most influential literature within the field of foot and ankle surgery, with the aim being to entice conclusions and guide future research.

American College of Foot and Ankle Surgeons® Clinical Consensus Statement: Perioperative Management

A wide range of factors contribute to the complexity of the management plan for an individual patient, and it is the surgeon's responsibility to consider the clinical variables and to guide the patient through the perioperative period. In an effort to address a number of important variables, the American College of Foot and Ankle Surgeons convened a panel of experts to derive a clinical consensus statement to address selected issues associated with the perioperative management of foot and ankle surgical patients.

Ambulatory Surgical Centers: A Review of Complications and Adverse Events

An increasing number of orthopaedic surgeries are performed at ambulatory surgical centers (ASCs), as is exemplified by the 272% population-adjusted increase in outpatient rotator cuff repairs from 1996 to 2006. Outpatient surgery is convenient for patients and cost effective for the healthcare system. The rate of complications and adverse events following orthopaedic surgeries at ASCs ranges from 0.05% to 20%. The most common complications are pain and nausea, followed by infection, impaired healing, and bleeding; these are affected by surgical and patient risk factors. The most important surgeon-controlled factors are surgical time, type of anesthesia, and site of surgery, whereas the key patient comorbidities are advanced age, female sex, diabetes mellitus, smoking status, and high body mass index. As the use of ASCs continues to rise, an understanding of risk factors and outcomes becomes increasingly important to guide indications for and management of orthopaedic surgery in the outpatient setting.

High Rates of Postoperative Wound Infection Following Elective Implant Removal

Introduction :

Metal implants placed during fracture surgery are often removed for various reasons (i.e. pain, prominent material, patients request). The removal of implants is considered a ‘clean’ procedure and as low risk surgery. The incidence of wound infections following implant removal has received little attention in the literature. The aim of the current study was to assess the incidence and risk factors of postoperative wound infections (POWIs) following implant removal.

Material and Methods :

All consecutive adult patients in a Level 1 and Level 2 Trauma Center who had their implants removed during a 6.5 years period were included. Exclusion criteria were removal of implants because of an ongoing infection or fistula and removal followed by placement of new implants. Primary outcome measure was a POWI as defined by the US Centers for Disease Control and Prevention. Patient characteristics and peri-operative characteristics were collected from the medical charts.

Results :

A total of 452 patients were included (512 procedures). The overall POWI rate was 11.6% (10% superficial, 1.6% deep). A total of 403 procedures (78.7%) comprised of implant removal below the knee joint with a 12.2% POWI rate. A POWI following initial fracture treatment was associated with a higher rate of POWI following implant removal (p=0.012). A POWI occurred more often in younger patients (median age 36 versus 43 years; p=0.004).

Conclusion :

The overall incidence of postoperative wound infection was 11.6% with 10% superficial and 1.6% of deep infections in patients with elective implant removal. A risk factor for POWI following implant removal was a previous wound infection.

American college of foot and ankle surgeons' clinical consensus statement: perioperative prophylactic antibiotic use in clean elective foot surgery

Some controversy exists regarding the use of antibiotic prophylaxis in elective foot and ankle surgery. A task force was appointed by the American College of Foot and Ankle Surgeons (ACFAS) to provide a clinical consensus statement on this topic. The panel members performed a literature search and identified 6 studies that met the inclusion criteria. They then developed a list of 13 questions about which they attempted to reach consensus using a modified Delphi method. The questions were grouped into 4 categories: indications for antibiotic prophylaxis relative to surgical procedure; antibiotic prophylaxis in high-risk patients; antibiotic selection; and timing of antibiotic prophylaxis. Consensus was reached for all 13 questions. The panel members found that studies pertaining specifically to elective foot and ankle surgeries that were not level I evidence generally did not recommend prophylaxis. They also found that multispecialty guidelines, which reflect data that are stronger, tended to recommend routine prophylaxis, especially for surgeries involving hardware. In addition, many hospital systems support routine prophylaxis by surgeons. More high-level evidence is required to make a definitive determination about whether prophylaxis is necessary in elective foot and ankle surgery. Until that time, routine prophylaxis will likely be continued at most institutions, because few complications have been reported with the practice.