Changes in quantitative elastography assessment of the adjacent lumbar disc after segmental fixation of the spine: a case description of a burst fracture of L4
Article dans une revue avec comité de lecture
Date
2022Journal
Quantitative Imaging in Medicine and SurgeryAbstract
Vertebral burst fractures are usually due to traumatic high-energy distraction of the vertebra. They often require pedicle screw fixation to stabilize the spine during the healing process but once the fusion of the fractured vertebra has occurred, the posterior fixation can be removed or shortened to restore part of the spinal mobility. The importance of sparing fusion levels to ensure optimal functional results has been demonstrated. In surgical planning, the rule is therefore to ensure the osteosynthesis stability while limiting the number of levels included. Immobilization or fixation of a vertebral segment may be responsible for degeneration of the intervertebral disc and in case of surgical treatment the adjacent disc. Therefore, we can ask whether removal of a vertebral fixation could decrease the stress on adjacent segments. Ultrasound shearwave elastography is a new innovative and non-invasive technique allowing evaluation of soft tissue’s elastic modulus through the measurement of shear wave speed (SWS). This non-invasive imaging method has shown its added value in breast or in liver oncology and, more recently, in musculoskeletal pathologies assessment. In particular, Langlais et al. found that SWS measured in annulus fibrosus was significantly higher in progressive adolescent idiopathic scoliosis than in asymptomatic population, which is associated with a stiffer tissue. The same authors defined a corridor of normality (2.3–3.7 m/s) for the asymptomatic population and observed that annulus SWS tended to normalize 1 year after fusion surgery in severe adolescent idiopathic scoliosis. The aim of this case was to analyze the effect of removing the posterior fixation in a case of burst fracture on the mechanical properties of the bridged and adjacent intervertebral discs.
Files in this item
Related items
Showing items related by title, author, creator and subject.
-
Article dans une revue avec comité de lectureLANGLAIS, Tristan; ROUGEREAU, Grégoire; ASSI, Ayman; GHANEM, Ismat; DUBOUSSET, Jean; VIALLE, Raphaël; PIETTON, Raphaël; SKALLI, Wafa; GAJNY, Laurent; VERGARI, Claudio (Elsevier BV, 2021)Objective: Our objective was to establish a corridor of normality for the external shape 3D parameters and then to assess these variables in adolescent idiopathic scoliosis (AIS). Methods: Adolescent with mild and severe ...
-
Article dans une revue avec comité de lectureLANGLAIS, Tristan; PIETTON, Raphaël; DUBOUSSET, Jean; SKALLI, Wafa; VIALLE, Raphaël; VERGARI, Claudio (Elsevier, 2018)Objectives In vitro studies showed that annulus fibrosus lose its integrity in idiopathic scoliosis. Shear wave ultrasound elastography can be used for noninvasive measurement of shear wave speed (SWS) in vivo in the annulus ...
-
Article dans une revue avec comité de lectureLANGLAIS, Tristan; DESPRAIRIES, Pierre; PIETTON, Raphaël; DUBOUSSET, Jean; MEAKIN, Judith R.; WINLOVE, Peter C.; VIALLE, Raphaël; SKALLI, Wafa; ROHAN, Pierre-Yves; VERGARI, Claudio (Springer Verlag, 2019)The main function of the intervertebral disc is biomechanical function, since it must resist repetitive high loadings, while giving the spine its flexibility and protecting the spinal cord from over-straining. It partially ...
-
Article dans une revue avec comité de lectureCHANTEUX, Lucas; PIETTON, Raphaël; LANGLAIS, Tristan; VIALLE, Raphaël; SKALLI, Wafa; VERGARI, Claudio (Elsevier, 2020)Abstract Objectives To determine lumbar intervertebral disc properties with shear wave elastography in adolescent idiopathic scoliotic (AIS) patients before and after surgery, and compare them with asymptomatic controls. ...
-
Article dans une revue avec comité de lecturePIETTON, Raphaël; DAVID, Mercedes; HISAUND, Alisa; LANGLAIS, Tristan; SKALLI, Wafa; VIALLE, Raphaël; VERGARI, Claudio (Elsevier, 2021)Spine deformity during adolescent idiopathic scoliosis can induce a rib-cage deformity. This bone deformity can have direct consequences on the chest-wall muscles, including intercostal muscles, leading to respiratory ...