It is very uncertain whether hyaluronic acid changes complete ulcer healing (56 days) compared with paraffin gauze (very low certainty).
The review found no eligible studies for this question.
It is very uncertain whether hyaluronic acid changes complete ulcer healing (12 weeks ‐ 84 days) compared with conventional dressing (sterile petrolatum gauze) (very low certainty).
It is very uncertain whether platelet‐rich growth factor + hyaluronic acid changes complete ulcer healing compared with platelet‐rich growth factor (very low certainty).
It is very uncertain whether hyaluronic acid + hydrocolloid changes complete ulcer healing (42 days) compared with hydrocolloid (very low certainty).
It is very uncertain whether lysine hyaluronate changes complete ulcer healing compared with sodium hyaluronate (very low certainty).