High-grade dysplastic spondylolisthesis is extremely rare and always involves the L5-S1 level. It is attributed to congenital dysplasia of the superior articular process of the sacrum. It can remain asymptomatic for a long time and can progress to a more severe grade of olisthesis and spondyloptosis. Surgical treatment has varied from posterior-only in situ fusion to anterior and posterior fusion with complete reduction. Three cases of symptomatic high-grade (4th and 5th grade) dysplastic spondylolisthesis treated surgically with reduction and fusion are presented. Interbody fusion at the level of olisthesis is crucial.
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Increased Risk of Adjacent Segment Spondylolisthesis or Instability Following L5-S1 Versus L4-S1 Fixation for L5-S1 High-Grade Dysplastic Spondylolisthesis in Children.
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Department of Orthopedics, The First People's Hospital of Yangquan, Yangquan, China.
Objective: High-grade dysplastic spondylolisthesis (HGDS) is a relatively rare condition mainly involving the L5/S1 segment of the spine and occurring in children and adolescents. Whether surgical fixation should be L5-S1 monosegmental or extended up to L4 remains controversial. This study aimed to compare clinical outcomes and the risk of adjacent segment spondylolisthesis between L5-S1 monosegmental fixation and L4-S1 double-segmental fixation for pediatric HGDS.
View Article and Find Full Text PDFEvaluation of the effectiveness of the femoro-sacral posterior angle system for measuring spino-pelvic morphology in high-dysplastic developmental spondylolisthesis.
Eur Spine J
October 2024
Department of Orthopaedics, Peking University Third Hospital, No.49 Huayuan Bei Road, Haidian District, Beijing, 100191, China.
Objective: The Femoro-Sacral Posterior Angle (FSPA) system and the pelvic incidence (PI) system are utilized for measuring sagittal spino-pelvic morphology in patients with high-dysplastic developmental spondylolisthesis (HDDS). This study aimed to analyze the accuracy and stability of these two systems.
Methods: A retrospective analysis was conducted on 45 patients diagnosed with HDDS who underwent surgical treatment at our hospital (HDDS group), along with 45 patients without spondylolisthesis (normal group).
Influence of slippage reduction and correction of lumbosacral kyphosis by single-level posterior lumbar interbody fusion on spinal alignment in patients with dysplastic spondylolisthesis.
Spine Deform
November 2024
Department of Orthopaedic Surgery, Keio University School of Medicine, 35 Shinanomachi Shinjuku-Ku, Tokyo, 1608582, Japan.
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- The study examines the effects of L5-S1 single-level PLIF surgery on spinal alignment and patient outcomes in individuals with dysplastic spondylolisthesis.* -
- Results showed significant improvements in clinical scores (JOA and VAS) for back and leg pain, as well as reductions in slip percentage and lumbosacral angle post-surgery.* -
- The findings suggest that correcting lumbosacral kyphosis correlates positively with postoperative pelvic tilt, enhancing overall spinal alignment.*
A radiological parametric comparison of low-grade lytic spondylolisthesis to degenerative spondylolisthesis - A retrospective approach to establish its dysplastic origin.
J Craniovertebr Junction Spine
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Department of Spine Services, Indian Spinal Injuries Centre, New Delhi, India.
Objectives: This study aims to compare low-grade lytic spondylolisthesis (LS) and degenerative spondylolisthesis (DS) radiologically. In addition, it seeks to identify underlying similarities between LS and DS.
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- * A rare case is presented where a middle-aged man had all three conditions at once, leading to his chronic low back pain and resistance to conservative treatment.
- * The patient underwent a successful minimally invasive lumbosacral fusion, which relieved his symptoms immediately and showed no recurrence after six months, highlighting this approach as a viable option for similar cases.
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