A comparative analysis of sharp debridement devices for biofilm management in hard-to-heal wounds: a clinical assessment

OBJECTIVE: Hard-to-heal wound biofilms are increasingly recognised as a major barrier to healing, contributing to persistent inflammation, delayed re-epithelialisation, and reduced responsiveness to standard therapies. While traditional sharp debridement (TSD) is a standard treatment, its limitations include the need for specialised training, the potential for pain and bleeding, and degree-specific scope of practice restrictions. This study investigated a novel multifaceted, sharp debridement device as a potential addition to the current portfolio of debridement technologies. METHOD: This prospective study enrolled patients with hard-to-heal wounds, randomised equally to either multifaceted, sharp debridement (EZ-Debride, MDM Wound Ventures, US (EZD)) or TSD (scalpels/curettes). Biofilm presence and extent were assessed pre- and post-debridement using a modified Alcian blue wound blotting technique, graded on a 0-3 scale. Biofluorescent imaging (BFI) and provider clinical assessments allowed additional evaluation of the biofilm removal efficacy. RESULTS: The experimental cohort comprised 80 patients. Both EZD and TSD significantly reduced biofilm, as evidenced by decreased Alcian blue staining grades post-debridement (p<0.005 for both). However, EZD resulted in a significantly greater reduction in biofilm than TSD (85.0% versus 34.9%, respectively; p<0.0001). While BFI showed limited correlation with Alcian blue staining overall, in cases with positive pre-debridement BFI imaging results, EZD achieved a 100% reduction in bacterial fluorescence compared with 50% using traditional methods. Clinical assessment confirmed a higher rate of complete biofilm removal in the EZD group compared with the TSD group (60.0% versus 12.2%, respectively). CONCLUSION: This study demonstrated that the novel multifaceted, sharp debridement device, EZD, is a safe and effective tool for biofilm removal in hard-to-heal wounds, potentially surpassing TSD methods. EZD offers a less invasive, more efficient, and potentially less painful approach, suggesting its value in improving clinical wound management and patient outcomes. Further research should examine its impact on long-term healing and broader clinical applicability.