19 Harley St, London, W1G 9QJ, UK

A Biomechanical Comparison of Two Different Topping-off Devices and Their Influence on the Sacroiliac Joint Following Lumbosacral Fusion Surgery – Lumbar Fusion

Day Case Lumbar Fusion Surgery

The article discusses the comparison of two topping-off devices, namely the interspinous spacer-based (ISS) and the pedicle screw-rod dynamic fixator-based (PDF), in their effects on the biomechanics of the sacroiliac joint (SIJ) in lumbar/lumbosacral fusion surgeries. The study utilized a finite-element lumbopelvic model and loaded it with physiological motions to investigate the range of motion and von-Mises stress at the SIJs. The results show that both topping-off models increased SIJ motion and stress compared to rigid fusion models. However, the PDF-based topping-off device led to higher increments, suggesting a potential increased risk of SIJ degeneration when using this device

Summarised by Mr Mo Akmal – Lead Spinal Surgeon
The London Spine Unit : most advanced day surgery hospital in UK

Published article

: The obtained results suggest that the PDF-based topping-off device leads to higher increments in SIJ motion and stress than ISS-based topping-off device following lumbosacral fusion, implying topping-off technique could be linked to an increased risk of SIJ degeneration, especially when using PDF-based device.

Lumbar Fusion Surgery Expert. Best Spinal Surgeon UK
Neurospine. 2024 Jan 31. doi: 10.14245/ns.2347108.554. Online ahead of print.ABSTRACTOBJECTIVE: Interspinous spacer (ISS)-based and pedicle screw-rod dynamic fixator (PDF)-based topping-off devices have been applied in lumbar/lumbosacral fusion surgeries for preventing the development of proximal adjacent-segment degeneration. However, little attention has been paid to sacroiliac joint (SIJ), which belongs to the adjacent joints. Accordingly, the objective,

Neurospine. 2024 Jan 31. doi: 10.14245/ns.2347108.554. Online ahead of print.

ABSTRACT

OBJECTIVE: Interspinous spacer (ISS)-based and pedicle screw-rod dynamic fixator (PDF)-based topping-off devices have been applied in lumbar/lumbosacral fusion surgeries for preventing the development of proximal adjacent-segment degeneration. However, little attention has been paid to sacroiliac joint (SIJ), which belongs to the adjacent joints. Accordingly, the objective of this study was to compare how these two topping-off devices affect the SIJ biomechanics.

METHODS: A validated, normal finite-element lumbopelvic model (L3-pelvis) was initially adjusted to simulate interbody fusion with rigid fixation at the L5-S1 level, and then the DIAM or BioFlex system was instrumented at the L4-L5 level to establish the ISS-based or PDF-based topping-off model, respectively. All the developed models were loaded with moments of four physiological motions using hybrid loading protocol.

RESULTS: Compared with the rigid fusion model (without topping-off devices), range of motion and von-Mises stress at the SIJs were increased by 23.1-64.1% and 23.6-62.8%, respectively, for the ISS-based model and by 51.2-126.7% and 50.4-108.7%, respectively, for the PDF-based model.

: The obtained results suggest that the PDF-based topping-off device leads to higher increments in SIJ motion and stress than ISS-based topping-off device following lumbosacral fusion, implying topping-off technique could be linked to an increased risk of SIJ degeneration, especially when using PDF-based device.

PMID:38317555 | DOI:10.14245/ns.2347108.554

The London Spine Unit : most advanced day surgery hospital in UK

Read the original publication:

A Biomechanical Comparison of Two Different Topping-off Devices and Their Influence on the Sacroiliac Joint Following Lumbosacral Fusion Surgery

Related Posts

0/5 (0 Reviews)

Trusindex Reviews

London Spine Unit Harley Street Hospital

A Focus on High Quality Specialised Care

We are a specialist Private Hospital based on Harley Street, London UK The Harley Street Hospital, Day Surgery Hospital

We provide exclusive health services for individuals seeking Advanced medical, non-surgical or minimally invasive treatments. We are covered by All Insurance Companies apart from AXA PPP

Our Medical Director and Lead Spinal Surgeon Mr Mo Akmal MD is a world renowned Spine Specialist Consultant with over 20 years of experience. He and his team have developed revolutionary techniques to perform all types of Spinal Surgery as a Day Case procedure without traditional General Anaesthetic.

We are constantly improving our techniques for treatment and improving facilities for our patients.

Book your Appointment Now 
Check out our Reviews 
Check out our Patient Videos 
Check our Mr Akmal’s Profile

 

What our patients say ...

Neurospine. 2024 Jan 31. doi: 10.14245/ns.2347108.554. Online ahead of print.ABSTRACTOBJECTIVE: Interspinous spacer (ISS)-based and pedicle screw-rod dynamic fixator (PDF)-based topping-off devices have been applied in lumbar/lumbosacral fusion surgeries for preventing the development of proximal adjacent-segment degeneration. However, little attention has been paid to sacroiliac joint (SIJ), which belongs to the adjacent joints. Accordingly, the objective
Spinal Stenosis Symptoms

Revolutionary Keyhole surgical technique to vaporise bulging discs

Dr Mo Akmal Medical Director
Dr Mo Akmal MD - Lead Spinal Surgeon

Laser Disc Surgery can be performed under local anaesthetic at The Harley Street Hospital.

Initial Consultation

with Consultant Spine Surgeon
£ 250
  • No Waiting Times
  • Top NHS affiliated Consultant
  • Includes Clinical Review and Report
  • Multidisciplinary discussion
  • Review of Previous Scans and Reports

Follow up Consultation

any appointment after initial consultation
£ 180
  • Top NHS affiliated Consultant
  • Includes Clinical Review and Report
  • Multidisciplinary discussion

High Resolution MRI Scan

any Single Region (3.0 Tesla)
£ 600
  • No waiting times
  • Includes Full Radiologist Report
  • Open or Closed MRI scan types
  • Copy of Scan on CD

Website Offer

Pre-Booked Online
£1130
£ 800
  • Initial Consultation
  • MRI Scan (Single Region)
  • Follow Up consultation
  • Same Day One Stop Visit
  • Full Medical and MRI scan Report
  • Copy of scan on CD
Popular

If you have any emergency Doctor’s need, simply call our 24 hour emergency

Your personal case manager will ensure that you receive the best possible care.

Call Now 

+44 844 589 2020
+44 203 973 8810