Indications for Adult Spinal Deformity Surgery
Fig. 3.1 Sagittal parameters that are important in the evaluation of ASD and can be used for surgical planning. Sagittal vertical axis (SVA), pelvic tilt (PT), and pelvic incidence minus…
The MiSLAT Algorithm: Minimally Invasive Evaluation and Treatment for Adult Degenerative Deformity
Fig. 9.1 MisLAT algorithm Fig. 9.2 Abbreviated MisLAT algorithm 9.5 The MiSLAT Algorithm 9.5.1 MiSLAT Treatment Level I This patient population typically presents with symptoms consistent with neurogenic claudication due…
Expandable Cages for Thoracic Spinal Deformity
Fig. 19.1 Sagittal T1 MRI thoracic spine with contrast demonstrating severe kyphotic deformity at T6/7 due to infection. The kyphosis, along with epidural enhancing tissue, is encroaching upon the spinal…
The Future of MIS Spine Surgery
Michael Y. Wang, Yi Lu, D. Greg Anderson and Praveen V. Mummaneni (eds.)Minimally Invasive Spinal Deformity Surgery2014An Evolution of Modern Techniques10.1007/978-3-7091-1407-0_38 © Springer-Verlag Wien 2014 38. The Future of MIS Spine Surgery Richard G. Fessler1 (1) Department of Neurosurgery,…
The Importance of the Fractional Curve
Fig. 6.1 (a) Typical adult degenerative scoliosis demonstrating the major curve in the mid-lumbar spine with a compensatory fractional curve at the lumbosacral junction. (b) Also note the loss of…
Stand-Alone Lateral Surgery for Spinal Deformity
Fig. 26.1 Lordotic cage placed in the intervertebral disc space. Note that it spans the lateral endplate on both the right and left sides of the apophyseal ring, which is…
Lumbopelvic Parameters
Fig. 5.1 Pelvic incidence (PI) is described as an angle subtended by a line which is drawn from the center of the femoral heads to the midpoint of the sacral…
Management of Osteoporotic Bone
Complications of osteoporosis in spine surgery Subsidence Pedicle fracture Proximal junctional kyphosis Compression fracture Pseudoarthrosis Implant loosening/haloing 15.3 Preoperative Evaluation and Medical Management Preoperative evaluation of the patient with suspected…
Classification Schema for Scoliosis
Fig. 2.1 36-in. antero-posterior X-ray illustrating scoliosis terms. CSVL Central Sacral vertical line 2.2 Adolescent Idiopathic Scoliosis Classification Systems Based on etiology, scoliosis has been broadly subdivided into idiopathic, neuromuscular,…
Rod Contouring, Passage, and Connection
Fig. 13.1 Rod passage with rotation of the rod along its long axis to drive the rod laterally or medially to engage all the screw heads in a deformed spine….
