Operative Environment

Postoperative SSIs are believed to occur via bacterial inoculation at the time of surgery or as a result of bacterial contamination of the wound via open pathways to the deep tissue layers.1–3 The probability of SSI is reflected by interaction of parameters that can be categorized into three major groups.2 The first group consists of factors related to the ability of bacteria to cause infection and include initial inoculation load and genetically determined virulence factors that are required for adherence, reproduction, toxin production, and bypassing host defense mechanisms. The second group involves those factors related to the defense capacity of the host including local and systemic defense mechanisms. The last group contains environmental determinants of exposure such as size, time, and location of the surgical wound that can provide an opportunity for the bacteria to enter the surgical wound, overcome the local defense system, sustain their presence, and replicate and initiate local as well as systemic inflammatory reactions of the host. The use of iodine impregnated skin incise drapes shows decreased skin bacterial counts but no correlation has been established with SSI. However, no recommendations regarding the use of skin barriers can be made (see this Workgroup, Question 27)

Preoperative planning with three-dimensional CT vs. three-dimensional magnetic resonance imaging does not change surgical management for shoulder instability

Background: This study aims to determine the effect of time and imaging modality (three-dimensional (3D) CT vs. 3D magnetic resonance imaging (MRI)) on the surgical procedure indicated for shoulder instability. The hypothesis is there will be no clinical difference in procedure selection between time and imaging modality. Methods: Eleven shoulder surgeons were surveyed with the same ten shoulder instability clinical scenarios at three time points. All time points included history of present illness, musculoskeletal exam, radiographs, and standard two-dimensional MRI. To assess the effect of imaging modality, survey 1 included 3D MRI while survey 2 included a two-dimensional and 3D CT scan. To assess the effect of time, a retest was performed with survey 3 which was identical to survey 2. The outcome measured was whether surgeons made a “major” or “minor” surgical change between surveys. Results: The average major change rate was 14.1% (standard deviation: 7.6%). The average minor change rate was 12.6% (standard deviation: 7.5%). Between survey 1 to the survey 2, the major change rate was 15.2%, compared to 13.1% when going from the second to the third survey (P = .68). The minior change rate between the first and second surveys was 12.1% and between the second to third interview was 13.1% (P = .8). Discussion: The findings suggest that the major factor related to procedural changes was time between reviewing patient information. Furthermore, this study demonstrates that there remains significant intrasurgeon variability in selecting surgical procedures for shoulder instability. Lastly, the findings in this study suggest that 3D MRI is clinically equivalent to 3D CT in guiding shoulder instability surgical management. Conclusion: This study demonstrates that there is significant variability in surgical procedure selection driven by time alone in shoulder instability. Surgical decision making with 3D MRI was similar to 3D CT scans and may be used by surgeons for preoperative planning

Analysis of patient-directed search content and online resource quality for ulnar collateral ligament injury and surgery

Background: Patients use the Internet to learn information about injuries, yet online content remains largely unstudied. This study analyzed patient questions posed online regarding ulnar collateral ligament (UCL) tears or UCL surgical management. Methods: Three separate search strings about UCL tear and UCL surgery were queried on the Google search engine. The 300 most commonly asked questions were compiled for each topic and associated webpage information was collected from the “People also ask” section. Questions were categorized using the Rothwell classification and webpages by Journal of the American Medical Association (JAMA) benchmark criteria. Results: The most frequent UCL tear questions were “how long does it take to heal a torn UCL?” and “what is nonsurgical treatment for the UCL?” The most frequent UCL surgery question was “can you retear your UCL after surgery?” The Rothwell classification of questions for UCL tear/UCL surgery was 55%/32% policy, 38%/57% fact, and 7%/11% value with highest subcategories being indications/management (46%/25%) and technical details (24%/25%). The most common webpages were academic (39%/29%) and medical practice (24%/26%). Mean JAMA score for all 600 webpages was low (1.2), with journals (mean = 3.4) having the highest score. Medical practice (mean = 0.5) and legal websites (mean = 0.0) had the lowest JAMA scores. Only 30% of webpages provided UCL-specific information. Conclusion: Online UCL patient questions commonly pertain to technical details and injury management. Webpages suggested by search engines contain information specific to UCL tears and surgery only one-third of the time. The quality of most webpages provided to patients is poor, with minimal source transparency