[Retro-lunar luxation of the carpus associated with a Benett's fracture, fracture of the second metacarpal and of the radial styloid].

The authors report a case of peri-lunar luxation of the carpus, associated with a Bennett's fracture, a fracture of the second metacarpal and with an avulsion of the radial styloid. Even if, each injury alone is commonplace, we did not find this combination, in the literature. It reiterates the importance of not ignoring, on X-rays, one of the four wounds, and the problem of the surgical strategy, for the treatment of all of the injuries at a time. Peri-lunar dislocation of the carpus is quite an unusual injury, affecting mainly young men. In one third of cases, the peri-lunar dislocation is unnoticed at first examination. This problem is even more acute when associated wounds, which are evident on X-rays, exist. The operative technique, used in the treatment of such wounds, depends on the severity. For peri-lunar luxation on the small curve, closed reduction is used. For one on the large curve, it is better to use open reduction, as for, most probably, for associated lesions, operated on late.