Guidelines for Debridement and Split‑Thickness Skin Grafting of Fingertip Injuries

Debridement Principles

Remove only clearly non‑viable tissue (necrotic eschar, purulent material, or sloughy yellow tissue) when preparing a fingertip for split‑thickness skin grafting【1】.
Preserve all viable dermis, subcutaneous tissue, fat, and fascia because the quality of the recipient wound bed directly determines graft success【2】.
Excessive removal of viable tissue is the primary error in fingertip wound preparation and is associated with poorer healing outcomes【1】.
Aggressive surgical debridement that excises healthy tissue can increase bone and tendon exposure, leading to chronic osteomyelitis and a higher risk of amputation【1】.

The wound must have adequate granulation tissue coverage before grafting; exposed bone or tendon should first be covered with granulation tissue【2】.
Apply non‑adherent silicone contact layers (e.g., silicone dressings) during preparation to protect delicate granulation tissue【2】.

Delay grafting until the wound is stabilized with a clean, granulating bed free of infection【1】.
For complex wounds associated with substance‑use disorders (e.g., xylazine‑related injuries), postpone definitive closure until the patient is medically stabilized【1】.

Obtain bacterial and fungal cultures from any yellowing or otherwise suspicious areas before grafting【3】.
Apply topical antimicrobials only to areas with clinical infection; prophylactic use is not recommended【3】.
Systemic antibiotics are indicated solely for signs of systemic infection, not for mere wound colonization【3】.
Silver‑containing dressings or products are recommended as first‑line topical antimicrobials when antimicrobial therapy is needed【3】.

Split‑thickness skin grafts are appropriate for fingertip coverage once a suitable granulation bed has been prepared【2】【1】.
In complex cases, consider using a biodegradable dermal substitute (temporizing matrix) as a scaffold, acknowledging that current data are limited for specific wound types【1】.

Use non‑adherent dressings (e.g., Mepitel™ or Telfa™) as the primary layer over the graft to prevent adherence and shear【3】.
Apply secondary foam or absorptive dressings to manage exudate and maintain a moist environment【3】.