The TL-HEX™ is a hexapod-based system designed at Texas Scottish Rite Hospital for Children (TSRHC), Dallas, TX as a three-dimensional bone segment reposition module to augment the previously developed TrueLok™ Ring Fixation System frame. In essence, the system consists of circular and semi-circular external supports secured to the bones by wires and half pins and interconnected by six struts. This allows multi-planar adjustment of the external supports. The rings position is adjusted either rapidly or gradually in precise increments to perform bone segment repositioning in three-dimensional space. All components of the TL-HEX are compatible with the TrueLok Ring Fixation System; therefore, external supports from both systems can be connected to each other when building fixation blocks. All the basic components from the TrueLok Ring Fixation System (wire and half pin fixation bolts, posts, threaded rods, plates as well as other assembly components and instrumentation) should be utilized with the TL-HEX system. As with any other hexapod-type external fixator, for successful application of the TL-HEX system is available with an associated software (