Technical Trick: PDF OnlyIs a Low-Cost Drill Cover System Non-Inferior to Conventional Surgical Drills for Skeletal Traction Pin Placement?Selhorst, Samantha BS1; O’Toole, Robert V. MD1; Slobogean, Gerard P. MD MPH1; Harris, Matthew DPhil MBBS MSc; FFPH2; Bhatti, Yasser DPhil3; Enobun, Blessing MD MPH1; O’Hara, Nathan N. MHA1Author Information 1Department of Orthopaedics, University of Maryland School of Medicine, Baltimore, Maryland 2Department of Primary Care and Public Health, Imperial College London, London, United Kingdom 3Department of Orthopaedics, Imperial College London, London, United Kingdom Corresponding Author: Nathan N. O’Hara, MHA, Department of Orthopaedics, University of Maryland School of Medicine, 110 South Paca St., Suite 300, Baltimore, MD 21201, Email: [email protected] The authors report no conflicts of interest related to this work. This study did not receive external funding. Journal of Orthopaedic Trauma: January 20, 2021 - Volume Publish Ahead of Print - Issue - doi: 10.1097/BOT.0000000000002064 Buy PAP Metrics Abstract SUMMARY The Drill Cover system was developed as a low-cost alternative to conventional surgical drills with specific applicability to low- and middle-income countries. However, the system may also be useful for the sterile placement of traction pins in the emergency department of high-income country hospitals. In September 2019, a US-based Level-1 trauma center began using the Drill Cover system to apply skeletal traction pins in patients with femoral shaft fractures. With these data, we performed a retrospective interrupted time series study to determine if the Drill Cover system was non-inferior to conventional surgical drills in terms of infections at the traction pin site. The study included 205 adult patients with femoral shaft fractures initially placed in skeletal traction using a conventional surgical drill (n=150, pre-intervention group) or the Drill Cover system (n=55, post-intervention group). The primary outcome was an infection at the site of skeletal traction pin placement that required surgery or antibiotics was compared between groups using a non-inferiority test with a one-sided alpha of 0.05 and a non-inferiority margin of 3%. No infections at the site of skeletal traction pin placement were found in either the pre-intervention or the post-intervention group (difference 0%, 95% CI: 0.0 to 1.4%, non-inferiority p-value<0.01). The results suggest that the Drill Cover system was non-inferior to conventional surgical drills regarding infections at the site of skeletal traction pins. The Drill Cover system may be a safe alternative to the more expensive surgical drills for skeletal traction pin placement in the emergency room environment. Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.