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Table 1 Inclusion and exclusion criteria

From: Effectiveness of saline water and lidocaine injection treatment of intractable plantar keratoma: a randomised feasibility study

Inclusion criteria

• ≥ 18 years old

• Having a painful IPK for at least 3 months

Exclusion criteria

• Ongoing pregnancy or breastfeeding

• Severe cardiovascular or neurological disease

• Immunosuppressed status

• Presence of a plantar ulcer

• Allergy to lidocaine

• History of keloid or hypertrophic scar

• Simultaneous painful plantar syndrome unrelated to the presence of an IPK

  1. Group 1: Scalpel debridement only.
  2. Group 2: Scalpel debridement with needle insertion.
  3. Group 3: Scalpel debridement with subcutaneous injection of physiological saline water.
  4. Group 4: Scalpel debridement with subcutaneous injection of lidocaine solution 2%