Medical Journal of The Islamic Republic of Iran (MJIRI)

Absract

All perilunate fracture-dislocations combine bone avulsions, ligament disruption

and fractures in different forms. The most frequent pattern is the dorsal transscaphoid

perilunate fracture-dislocation. The reported risk of missed initial diagnosis

in perilunate dislocations is as high as 20%. Concerning pathomechanics of the

perilunate fracture-dislocation, it should be noted that most dorsal injuries usually result

from a fall on the outstretched hand or motor vehicle accidents although other

mechanisms are also mentioned. We describe here a case of dorsal trans-scaphoid

trans-capitate perilunate fracture-dislocation together with posterior olecranon fracture-

dislocation of the left upper extremity. To the best of the authors' knowledge,

such a case with this concomitant elbow fracture-dislocation has not been previously

reported in the literature.