The principle of helical implants. Unusual ideas worth considering.

The clinical use of helical implants (implants extruded over helical paths either periosteal (plates / internal fixators) or intramedullary implants for bone fixation is presented. A helical nail permits more degrees of freedom when choosing an entry point. With a helical periosteal device it is possible to position an implant on different aspects of bone (for instance, laterally in the proximal part of the bone or anteriorly in the distal part of the bone). These options have proven particularly useful when attempting to avoid damage to the vascular system of the femoral head and when performing MIPO bridge plating of humeral shaft fractures. Helical implants open up a new and still unexplored field in bone fixation. Early results have been very encouraging. It is hoped that indications for its use will broaden once the international community of orthopaedic surgeons realizes its existence and its major innovative features.