Background: Digital patient engagement platforms are designed to improve the efficacy of the perioperative surgical home, but the currently available solutions have shown low patient and provider adoption. The purpose of this study was to evaluate the effectiveness of a text-messaging (Short Message Service [SMS]) bot with respect to patient engagement following joint replacement procedures in a randomized clinical trial. Methods: One hundred and fifty-nine patients (83 patients in the control group and 76 patients in the intervention group) were enrolled in a randomized controlled trial comparing the effectiveness of an SMS bot (intervention group) with the traditional perioperative education process (control group) in patients undergoing primary total knee or hip arthroplasty. There were no significant differences in the demographic characteristics between the 2 groups. The primary outcome of time participating in home-based exercises and the secondary outcomes of knee range of motion, the use of narcotics, visual analog scale (VAS) mood score, telephone calls to the office, patient satisfaction, and visits to the emergency department were measured and were compared between the 2 groups. Continuous outcomes were analyzed using linear regression, and categorical outcomes were analyzed using the Pearson chi-square test. Results: Patients in the intervention group exercised for 8.6 minutes more per day: a mean time (and standard deviation) of 46.4 ± 17.4 minutes compared with 37.7 ± 16.3 minutes for the control group (p < 0.001). The intervention group had an improved mood (mean VAS, 7.5 ± 1.8 points compared with 6.5 ± 1.7 points for the control group; p < 0.001), stopped their narcotic medications 10 days sooner (mean time, 22.5 ± 13.4 days compared with 32.4 ± 11.8 days for the control group; p < 0.001), placed fewer telephone calls to the surgeon’s office (mean calls, 0.6 ± 0.8 compared with 2.6 ± 3.4 for the control group; p < 0.001), and had greater knee range of motion 3 weeks after the surgical procedure (mean flexion, 101.2° ± 11.2° compared with 93.8° ± 14.5° for the control group; p = 0.008), but had an equal range of motion at 6 weeks. There was a trend toward fewer visits to the emergency department in the intervention group, but this comparison lacked statistical power. Conclusions: An SMS bot can improve clinical outcomes and increase patient engagement in the early postoperative period in patients undergoing hip or knee arthroplasty. Level of Evidence: Therapeutic Level I. See Instructions for Authors for a complete description of levels of evidence.

Background Pre-operative simulation “warm-up” has been shown to improve performance and reduce errors in novice and experienced surgeons, yet existing studies have only investigated conventional laparoscopy. We hypothesized a brief virtual reality (VR) robotic warm-up would enhance robotic task performance and reduce errors. Study Design In a two-center randomized trial, fifty-one residents and experienced minimally invasive surgery faculty in General Surgery, Urology, and Gynecology underwent a validated robotic surgery proficiency curriculum on a VR robotic simulator and on the da Vinci surgical robot. Once successfully achieving performance benchmarks, surgeons were randomized to either receive a 3-5 minute VR simulator warm-up or read a leisure book for 10 minutes prior to performing similar and dissimilar (intracorporeal suturing) robotic surgery tasks. The primary outcomes compared were task time, tool path length, economy of motion, technical and cognitive errors. Results Task time (-29.29sec, p=0.001, 95%CI-47.03,-11.56), path length (-79.87mm, p=0.014, 95%CI -144.48,-15.25), and cognitive errors were reduced in the warm-up group compared to the control group for similar tasks. Global technical errors in intracorporeal suturing (0.32, p=0.020, 95%CI 0.06,0.59) were reduced after the dissimilar VR task. When surgeons were stratified by prior robotic and laparoscopic clinical experience, the more experienced surgeons(n=17) demonstrated significant improvements from warm-up in task time (-53.5sec, p=0.001, 95%CI -83.9,-23.0) and economy of motion (0.63mm/sec, p=0.007, 95%CI 0.18,1.09), whereas improvement in these metrics was not statistically significantly appreciated in the less experienced cohort(n=34). Conclusions We observed a significant performance improvement and error reduction rate among surgeons of varying experience after VR warm-up for basic robotic surgery tasks. In addition, the VR warm-up reduced errors on a more complex task (robotic suturing) suggesting the generalizability of the warm-up.

3.

BackgroundDeficiencies in medical student knowledge in musculoskeletal medicine have been well documented. To address these deficiencies, numerous curricular changes at our institution were instituted. The objective of this study was to determine whether medical students in their preclinical years benefit from early exposure to musculoskeletal medicine when compared to students exposed to musculoskeletal medicine just prior to completion of their preclinical curriculum.MethodsUnited States Medical Licensing Examination (USMLE) Step 1 and 2 scores were compared for periods of time before and after institution of the new curriculum. Scores on the previously validated 24-question short answer survey from Freedman and Bernstein were also compared over these same periods of time between these two groups and to established standards for competency, using a student’s two-tailed unpaired t-test for significance. Entering Medical College Admission Test (MCAT) scores were used to compare baseline preparation of students.ResultsOverall USMLE scores as well as scores on the USMLE subtest on Musculoskeletal, Skin and Connective Tissue Disease showed no improvement when scores were compared between the two groups of students. There was a statistically significant lower performance on the Freedman and Bernstein knowledge assessment exam for students in the new pre-clinical curriculum as compared to those introduced under the old model, considering both musculoskeletal knowledge (p < 0.001) and proficiency (p < 0.01), though the response rate on the recent survey was low (112/986 or 11%). Spine remained the least understood sub-topic, while a dedicated course in rheumatology likely contributed to increased student knowledge in that area. Additional exposure to musculoskeletal topics during the clinical years increased student knowledge. There was no difference between groups when comparing entering MCAT scores.ConclusionsClassroom curricular changes, including moving the introductory musculoskeletal course to the first year, intended to optimize musculoskeletal medicine education in the pre-clinical years of medical school did not appear to improve student musculoskeletal knowledge at any year of training. Further efforts to improve the education of medical students in musculoskeletal medicine should be directed towards providing more clinical experiences with patients having musculoskeletal concerns. This was a retrospective comparative study, level III evidence.