Diabetic foot ulcers (DFUs) represent a severe complication with the potential for lower limb amputations. This is a pilot study investigating the comparative efficacy of platelet-rich plasma (PRP) therapy for chronic DFUs, utilising dressing and perilesional/wound bed injection methods.
In this prospective comparative interventional study, 15 patients with non-healing chronic DFUs (Wagner Grade 1 or 2) were enrolled in each group. Group 1 received PRP via dressing while Group 2 underwent perilesional and wound bed injections with a 1-week interval between treatments. Evaluation included the Pressure Ulcer Scale for Healing tool, the Lower Extremity Functional Scale and a secondary analysis of the correlation between wound healing and glycaemic control.
The PRP injection group showed a statistically significant reduction in ulcer size (P < 0.035), exudate (P < 0.026) and tissue type (P < 0.003). Notably, this group exhibited a higher incidence of wound improvement overall. However, no statistically significant correlation emerged between wound healing and glycaemic control.
The study concludes that PRP injection for chronic DFUs surpasses the effectiveness of PRP dressing alone, proving to be a cost-effective and secure approach. The intervention yielded satisfactory results, expediting the healing process of chronic diabetic ulcers. These findings offer valuable insights for refining treatment approaches for DFUs.