Perilunate dislocations are relatively uncommon and tend to occur in young adult males.
Requirements:
(1) high energy injury with the wrist in hyperextension
(2) closed radial physis (a pediatric patient is more likely to have a failure at the distal physis)
(3) good bone density (a patient with osteoporosis is more likely to have a fracture of the distal radius)
Risk factors:
(1) greater energy
(2) conditions associated with laxity of the ligaments
Conditions associated with perilunate dislocation:
(1) fall from height
(2) vehicle accident (motor cycle, bicycle, automobile, etc)
(3) sports injury, typically a contact sport
(4) industrial accident
(5) any fall on an outstretched hand
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Specialty: Surgery, orthopedic
