Summary: Elastic osteosynthesis issuitable for the h u m e r u s m a i n l y because it is a non-weight-bearing borte. It is subject to muscular compression which shortens the bone's length. This can result in perforation of the proximal extremity by the K wires with subsequent loss of the reduction. To prevent this major drawback the authors report their experience with an original implant. It seems to preserve efficiently the trophic value of a noninvasive treatment hut also to provide secure bone length restoration. These original wires are simple to use and check because no stock of different sizes of implant is necessary.