erresourced areas.Limited visibility characteristic of cleft palate repair presents both ergonomic and educational challenges to cleft surgeons. Despite widespread recognition and reporting, posture-related spine disorders continue to represent a significant and potentially career-limiting problem for cleft/craniofacial surgeons. In addition, education and participation during palate repairs is difficult because of visual field constraints. At the authors' institution, a novel videoscope system was designed and implemented to (1) provide visualization for all surgical team members during palate operations, (2) facilitate active resident education, and (3) improve surgeon ergonomics. The authors' prior report demonstrated proof of concept for this method, which is now used in all cleft palate operations at their center. The purpose of this report is to share the detailed methodology to facilitate implementation by others and a retrospective review of the authors' experience before and after implementation. Video demonstration of the videoscope setup and a representative, recorded case are provided. The use of the videoscope was feasible in palatoplasties regardless of palatal phenotype and repair technique and did not have an effect on operative time. Subjectively, the authors report reduced procedure time in cervical flexion and subjectively improved musculoskeletal strain associated with videoscope use. Importantly, use of this system also provided complete visualization for all operating room team members and enabled enhanced resident autonomy during palate operations. Finally, it has facilitated the creation and archive of high-definition educational videos with unparalleled perspective. The equipment required to implement the system is likely already available in many medical centers. Adoption of this system may provide an opportunity to improve posture and teaching capabilities for cleft surgeons. CLINICAL QUESTION/LEVEL OF EVIDENCE Therapeutic, III.
  Recent studies support the prophylactic use of tranexamic acid during craniosynostosis surgery to reduce blood loss. The study aims to assess national trends and outcomes of tranexamic acid administration.
 
  The Pediatric Health Information System database was used to identify patients who underwent craniosynostosis surgery over a 9-year period (2010 to 2018). Search criteria included patients younger than 2 years with a primary diagnosis of craniosynostosis (International Classification of Diseases, Ninth Revision, 756.0; International Classification of Diseases, Tenth Revision, Q75.0) and CPT code for craniotomy (61550 to 61559). Tranexamic acid use, complications, length of stay, and transfusion requirements were recorded. Subgroup analysis was performed for fronto-orbital advancements and single-suture surgery.
 
  A total of 1345 patients were identified. Mean patient age was 229 ± 145 days. Four hundred fifty-four patients (33.7 percent) received tranexamic acid.  https://www.selleckchem.com/products/sirtinol.html  Tranexamic acid use increased from 13.1 percent in 2010 to 75.6 percent in 2018 (p = 0.005), and mean blood products per patient increased from 1.09 U to 1.6 U (p = 0.009). Surgical complication rate was higher in those receiving tranexamic acid (16.7 percent versus 11.1 percent; p = 0.004). Tranexamic acid administration was associated with increased transfusion requirements on univariate and multivariate analysis (1.76 U versus 1.18 U; OR, 2.03; p < 0.001). In the fronto-orbital advancement subgroup, those receiving tranexamic acid received more total blood products (2.2 U versus 1.8 U; p = 0.02); this difference was present but not significant within the single-suture group (0.69 U versus 0.50 U; p = 0.06).
 
  Tranexamic acid use in craniosynostosis surgery has increased dramatically since 2010. However, it was associated with higher transfusion and complication rates in this data set. Optimization of its use and blood loss mitigation in infant craniosynostosis deserve continued research.
 
  Therapeutic, III.
 Therapeutic, III.
  One of the arguments against early intervention for micrognathia in Pierre Robin sequence is the concept that the growth of the mandible will eventually "catch up." Long-term growth of the mandible and occlusal relationships of conservatively managed Pierre Robin sequence patients remain unknown. In this study, the authors evaluated the orthognathic surgery requirements for Pierre Robin sequence patients at skeletal maturity.
 
  Orthognathic surgical requirements of conservatively managed Pierre Robin sequence and isolated cleft patients (aged ≥13 years) at two institutions were reviewed and analyzed using t test, chi-square test, and Fisher's exact test. Values of p < 0.05 were considered statistically significant.
 
  Of the Pierre Robin sequence patients (n = 64; mean age ± SD, 17.9 ± 2.9 years), 65.6 percent were syndromic (primarily Stickler and velocardiofacial syndrome), 96.9 percent had a cleft palate, and 39.1 percent required orthognathic surgery at skeletal maturity. Nonsyndromic and syndromic Pierre Robin sequence patients demonstrated no differences in occlusal relationships or mandibular surgery frequency. The majority of Pierre Robin sequence patients requiring mandibular advancement had a class II occlusion. Comparison of Pierre Robin sequence patients to isolated cleft palate patients (n = 17) revealed a comparable frequency of orthognathic surgery between the two; however, Pierre Robin sequence patients did require mandibular advancement surgery at a greater frequency than cleft palate patients (p = 0.006).
 
  The present study found that 39.1 percent of conservatively managed Pierre Robin sequence patients required orthognathic surgery at skeletal maturity, of which the vast majority required mandibular advancement for class II malocclusion. These data suggest that mandibular micrognathia in conservatively managed Pierre Robin sequence patients may not resolve over time and may require surgical intervention.
 
  Risk, II.
 Risk, II.Reduced work hours and funding have fueled an increase in simulation-based training for plastic and orthopedic surgery residency programs. Unfortunately, certain simulation training can fail to enhance surgical skills because of availability, cost, or low fidelity. There is a growing interest among training programs for a cost-effective surgical simulator to improve basic skills and muscle memory of residents. The authors developed a three-dimensionally-printed, malleable, and anatomically accurate hand surgery simulator from a computed tomographic scan of an adult male subject. The bone matrix was specifically designed to provide proprioceptive feedback to hone drilling skills used in fracture repair and arthrodesis. The silicone soft-tissue covering provides excellent malleability to dissect and perform fracture-reducing maneuvers. Three-dimensional printing of "fracture bridges" allows the design of on-demand polyfracture models so the trainee can practice multiple types and locations of repairs as skills progress.