Hospital del Trabajador, Santiago, Chile
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Hospital del Trabajador, Santiago, Chile
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Hospital Roberto del Río, Santiago, Chile
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”, “sagittal balance”, “sagittal imbalance”, “pelvic incidence” and “lumbar lordosis”. The inclusion criteria were articles, clinical guidelines, systematic reviews and randomized controlled trials (RCTs) published in indexed journals, with full
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neoplastic disease with pathological fracture, spondylitis or from iatrogenic causes ( Fig. 4 ). The ideal candidates for PSO are patients with type 2 sagittal deformity and a substantial sagittal imbalance more than 12 cm (SVA > 12 cm) with a sharp
South West London Elective Orthopaedic Centre, UK
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(‘compensated stage’ with normal C7pl). However, with progressive ageing of the spine, this compensatory mechanism becomes ineffective and the patient starts to become sagittally imbalanced as shown by the excessively anterior C7pl (‘decompensated stage’). 8
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head size), the acetabular cup orientation (using the TAL 19 , 46 ) and the need for spinal surgery to correct a severe sagittal imbalance ( Table 1 ). The more stiff a lumbopelvic complex is, the more it seems sensible firstly to use a large
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with hip osteoarthritis and/or spinal deformities also often have abnormal spinopelvic alignment or sagittal imbalances, which lead to patient-specific changes in the relationship of the pelvis, femur, and spine with functional activities of daily
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balanced Low standing SS, sagittally imbalanced Fused spine Explanation Physiologic mobility Stiffness Spine-ageing modifications Spine-ageing modifications Spine surgery Risk assessment Very low–low Moderate–high Moderate
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deformity may also arise from the femur or even from both. This deformity acts as a potential factor in the arthritic process, and favours the development of OA in an ACL-deficient knee when the bony deformity is > 6° to 8°. Sagittal imbalance
Academic Department of Trauma and Orthopaedics, LGI, University of Leeds, UK
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NIHR Leeds Biomedical Research Center, Chapel Allerton Hospital, Leeds, UK
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fractures and in the case of spinopelvic dissociation. 102 , 104 After spinopelvic dissociation injuries, the restoration of the lumbosacral orientation is crucial, otherwise a sagittal imbalance will occur, with a deterioration of functional outcome
Orthopedic Department, Spine Unit, Hotel Dieu de France Hospital, Beirut, Lebanon
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Orthopedic Department, Spine Unit, Hotel Dieu de France Hospital, Beirut, Lebanon
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/DJK ( Fig. 6 ) risk factors include short fusion, greater pre-operative sagittal imbalance, correction of sagittal deformity, more posterior LIV plumb line, low bone mineral density and a smaller postoperative kyphosis ( 65 , 66 ). Hypercorrection is one of
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LG , Baldus CR , Blanke KM . Complications and predictive factors for the successful treatment of flatback deformity (fixed sagittal imbalance) . Spine (Phila Pa 1976) 1999 ; 24 : 1712 - 20 . 18 Yagi M
