Treatment of Nail Plate Dislocation at the Base on the Middle Finger
A nail plate dislocation at the base of the right middle finger requires immediate removal of the displaced nail plate, thorough irrigation, meticulous repair of any nail bed lacerations with fine absorbable sutures, and replacement of the nail plate (or a non-adherent substitute) as a biologic dressing to maintain the nail fold architecture.
Immediate Management Algorithm
Step 1: Assessment and Anesthesia
- Perform digital block anesthesia for adequate pain control
- Examine for associated injuries: nail bed lacerations, fractures of the distal or middle phalanx, tendon involvement
- Obtain radiographs to exclude fracture-dislocation or bone fragments that may require operative fixation 1
Step 2: Nail Plate Removal
When the nail plate is dislocated at the base (proximal dislocation), complete removal is mandatory to access and repair underlying structures 2, 3. The displaced nail should be:
- Carefully elevated from the nail bed
- Removed entirely to visualize the nail matrix and nail bed
- Cleaned and preserved for replacement
Critical pitfall: Attempting to reposition a dislocated nail without removing it will trap debris, prevent proper nail bed repair, and lead to permanent nail dystrophy.
Step 3: Nail Bed Repair
After nail plate removal 3:
- Irrigate thoroughly to remove all debris and contaminants
- Inspect the nail bed and matrix for lacerations
- Repair all nail bed lacerations with 6-0 or 7-0 absorbable sutures using precise technique
- If there are free segments of nail bed tissue, suture them back in place as a free graft 3
- Ensure the nail matrix (proximal portion) is not damaged, as this determines future nail growth
Step 4: Nail Plate Replacement
Replace the original nail plate (after cleaning and sterilizing) or use a non-adherent substitute 3:
- This serves as a biologic dressing
- Maintains the nail fold space and prevents synechiae formation
- Prevents scarring between the proximal nail fold and nail bed
- Secure with absorbable sutures through the nail plate into the nail fold
Step 5: Immobilization and Follow-up
- Apply a protective splint for 7-10 days
- Remove the replaced nail plate at 10-14 days
- Begin gentle range of motion exercises after initial healing
- Monitor for infection, which can occur with contaminated injuries
Key Considerations for Optimal Outcomes
Timing is critical: Nail bed repairs should be performed within 24 hours of injury for best results. Delayed treatment increases risk of infection and poor cosmetic outcome 3.
In children, treatment should be particularly conservative with emphasis on preservation of digital length and function 3. Even significant injuries may heal remarkably well with proper technique.
Associated fractures: If radiographs reveal a fracture at the base of the middle phalanx with the nail dislocation, this represents a more complex injury requiring assessment for operative fixation, particularly if there is articular involvement or instability 4, 5.
Avoid these common errors:
- Do not attempt closed reduction of a dislocated nail plate
- Do not leave the nail bed unrepaired
- Do not fail to replace the nail plate or substitute—this leads to nail fold adhesions
- Do not use non-absorbable sutures on the nail bed (causes foreign body reaction)
The goal is restoration of normal nail anatomy to allow proper nail growth and prevent permanent deformity. With meticulous technique, most patients achieve excellent functional and cosmetic results.