Results
Drying time among the 13 total markers (11 FT and 2 ST) ranged from 5 to 70 seconds, with a mean of 20.8 seconds and median of 5 seconds (Table). The drying time for the DERMarker E-Z Removable Ink Mini Skin Marker (Delasco, LLC) with an ST was 5 seconds, while the drying time for the other ST marker, WriteSite Plus Surgical Skin Marker (Aspen Surgical, Inc), was 70 seconds. The FT markers spanned the entire range of drying times. The ink spread width among the markers ranged from 0.53 to 2.27 mm with a median of 0.9 mm and mean of 1.13 mm (Table). The 2 ST markers were found to make some of the widest marks measured, including the WriteSite Plus Surgical Skin Marker, a nonsterile ST marker that created the widest ink marks. The second widest mark was made by an FT marker (Sterile Mini Ultrafine Tip XL Prep Resistant Ink Marker [Viscot Medical, LLC]).
To prioritize short drying time coupled with minimal ink spread width, the values associated with each marker were averaged to arrive at the overall score for each marker. The smaller the overall score, the higher we ranked the marker. The Devon Surgical Skin Marker, Dual Tip (Medtronic) ranked the highest among the 13 markers with a final score of 2.78. Runner-up markers included the Sterile Devon Surgical Skin marker, Fine Tip (Medtronic)(final score, 2.86); the Sterile Dual Tip Skin/Utility Marker (Medline Industries, Inc)(final score, 2.86); and the Skin Marker, Fine Tip (Cardinal Health)(final score, 2.89). The 2 lowest-ranking markers were the WriteSite Plus Surgical Skin Marker, an ST marker (final score, 36.13), followed by the Sterile BlephMarker (Viscot Medical, LLC)(final score, 35.27).
Figure 2 shows the drying time and ink spread width for all 13 markers.
Figure 2. Final results. The bottom left portion of the graph with short drying time and minimal ink spread width is the desired end of the marker spectrum. The top right portion of the graph represents the less desirable end of the spectrum, with longer ink drying time and broader ink spread width.