Coupling system and method for extending spinal instrumentation

摘要: A coupler for connecting a first, slotted, implanted spinal fixation element to second includes post and head disposed on distal end of the post. The has width shorter than slot in element, length longer element. with so configured can be placed first orientation that passes through then wherein is trapped beneath while having extends slot. Systems methods extending one or more additional vertebrae leaving place are also disclosed.