We read with interest the article by Robson et al,1 who developed trajectories to evaluate wound healing in patients with diabetic foot ulcers. The authors point out that measuring outcome in wound healing is difficult because of the absence of objective criteria to evaluate the healing process before total wound healing has taken place. Particularly in slowly healing wounds, this is recognized as a major problem in evaluating outcome because 100% wound closure cannot always be achieved within an acceptable period of time in all study patients.
Blot SI, Monstrey SJ. The Use of Laser Doppler Imaging in Measuring Wound-Healing Progress. Arch Surg. 2001;136(1):116. doi: