The study involved 55 patients who underwent posterior fusion with pedicle screws or the ASPEN system. Measurement outcomes included length of stay and clinical outcomes.
The researchers found that the ASPEN system led to significantly shorter hospital stay (28 hrs vs. 66 hrs) relative to pedicle screws. In addition, ASPEN device patients had a mean ODI improvement of 26 points at six weeks, compared to 13 points among the pedicle screw patients. Research found no statistical difference among age groups, with older patients experiencing similar post-operative improvement to younger patients.
In addition to the positive clinical outcomes documented with the ASPEN system, research also noted significantly lower overall hospital charges as compared to pedicle screws.
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