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Hand & Upper Limb
intermediate
X-Type

Fingertip Injuries - Allen Classification and Reconstruction

Fingertip Injuries

A 32-year-old carpenter presents with an injury to his right index fingertip from a table saw. Examination reveals tissue loss involving the pulp with exposed bone at the distal phalanx tip. The nail bed is intact. No bone protrusion is visible, but radiographs confirm distal phalanx tuft fracture. Regarding fingertip injuries and the Allen classification:

Mark each as TRUE or FALSE

A

Allen Type I injuries involve pulp tissue only without bone exposure; Type II involves pulp with exp...

B

Initial assessment should document: mechanism of injury (sharp vs crush), digit involved (thumb prio...

C

All fingertip injuries with bone exposure require immediate ray amputation; healing by secondary int...

D

Wound geometry affects reconstruction options: transverse defects may heal by secondary intention if...

E

Composite grafts (replacing amputated tissue) can be successful in children and for small defects in...

Answer the questions to see explanations

Click T (True) or F (False) for each option