Embodiments are provided that include a row decoder, including a row activation path, having a row address converter with an output coupled to an input of a section replacement detector. The tether structures may be continuous, for example in the form of a continuous loop, or may be discontinuous, for example in the form of a loop or elongate element having at least two anchor structures for securing in bone. The boat also has a releasably attachable and flexible coaming. In one embodiment, the system and method applies an encodingdecoding technique that allows error correction and detection to be performed over a number of successive decode stages or processing stages.