Multilevel Arthrodesis for Adult Spinal Deformity: When Should We Anticipate Major Blood Loss?

ConclusionPatients with ASD undergoing spinal arthrodesis of five or more levels are at risk for MBL. Three-column osteotomy, arthrodesis of ≥11 levels, malalignment in both coronal and sagittal planes, and osteoporosis appear to be risk factors for MBL.Level of EvidenceLevel III.
Source: Spine Deformity - Category: Orthopaedics Source Type: research