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Background/Introduction: Pseudarthrosis after adult spinal deformity (ASD) surgery may result in instrumentation failure and need for revision. However, the correlation between fusion grade with or without rod fractures and HRQoL is not known. We assessed the association between HRQoL, fusion grade, and rod fracture with and without revision surgery. Materials/Methods: A prospective, multi-center ASD database with 2 year followup data was reviewed. Fusion grade was determined on plain films using published criteria; Grade III or IV at one or more segments was

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systematically distribute any published materials without written permission from JNSPG. 2017 Background/Introduction: Adult spinal deformity (ASD) surgery is a massive undertaking that may involve a significant amount of blood loss, especially when various osteotomy techniques are utilized. Antifibrinolytic agents such as tranexamic acid (TXA) have been used in an attempt to reduce intraoperative blood loss. However, there is no universally accepted dosing protocol for TXA in spine surgery. Moreover, there are very few reports in the literature regarding high