Case Report of an Acute Complex Perilunate Fracture Dislocation Treated with a Three-Corner Fusion.

Perilunate fracture dislocations are a rare but devastating injury, which is often missed on initial presentation leading to significant delays in treatment. With the delay in treatment and a high energy mechanism of injury, patients are at increased risk of developing complex regional pain syndrome following trauma. In this report, we review the case of a 57-year-old left-hand dominant female who presented to a clinic with a five-and-a-half-week-old transtriquetral, perilunate fracture dislocation with comminution of the scaphoid facet. Due to the increased likelihood of a secondary procedure and low probability of a satisfactory outcome with open reduction internal fixation secondary to the loss of the scaphoid articulation, a salvage procedure was deemed her best option. To our knowledge, this is the first case reported in the literature in which a scaphoidectomy, triquetromy, and midcarpal fusion (three-corner fusion) was performed in the acute setting for a perilunate fracture dislocation.