Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

[The mobile segment above fusion]

K P Schulitz1, L Wiesner, R H Wittenberg

  • 1Orthop. Klinik und Poliklinik, Heinrich-Heine-Universität Düsseldorf.

Zeitschrift Fur Orthopadie Und Ihre Grenzgebiete
|March 1, 1996
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Model-based evaluation of adherence to bedaquiline and clofazimine in adults with drug-resistant TB.

The international journal of tuberculosis and lung disease : the official journal of the International Union against Tuberculosis and Lung Disease·2025
Same author

RNA therapeutics-An evaluation of potential occupational health hazards and a strategy to establish occupational exposure limits (OELs).

Journal of occupational and environmental hygiene·2025
Same author

Controlling cleaning agent residues in pharmaceutical manufacturing: A harmonized scientific strategy.

Regulatory toxicology and pharmacology : RTP·2023
Same author

Optimizing Moxifloxacin Dose in MDR-TB Participants with or without Efavirenz Coadministration Using Population Pharmacokinetic Modeling.

Antimicrobial agents and chemotherapy·2023
Same author

Detection of karakin poisoning using a targeted mass spectrometric workflow.

South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde·2022
Same author

Recency of HIV infection, antiretroviral therapy use and viral loads among symptomatic sexually transmitted infection service attendees in South Africa.

South African medical journal = Suid-Afrikaanse tydskrif vir geneeskunde·2022
Same journal

[Follow-up studies of congenital hip dysplasias after intertrochanteric varisation and derotation osteotomy].

Zeitschrift fur Orthopadie und ihre Grenzgebiete·2014
Same journal

Mirror-like scoliosis in twins.

Zeitschrift fur Orthopadie und ihre Grenzgebiete·2010
Same journal

The importance of adductors for the thigh amputee.

Zeitschrift fur Orthopadie und ihre Grenzgebiete·2010
Same journal

Statistical considerations on the technique of flap plastic on the heel.

Zeitschrift fur Orthopadie und ihre Grenzgebiete·2010
Same journal

The pan base thickness for the protrusio acetabuli and the hip dislocation.

Zeitschrift fur Orthopadie und ihre Grenzgebiete·2010
Same journal

Torticollis and branchiogenic malformation.

Zeitschrift fur Orthopadie und ihre Grenzgebiete·2010
See all related articles

Instrumented spinal fusion may increase adjacent segment degeneration, leading to facet joint osteoarthritis and instability. Non-instrumented fusion showed fewer adverse outcomes, suggesting careful consideration of instrumentation techniques is crucial.

Area of Science:

  • Orthopedics
  • Spinal Surgery
  • Biomechanics

Background:

  • Adjacent segment degeneration is a concern after spinal fusion.
  • The role of instrumentation in adjacent segment stress is debated.

Purpose of the Study:

  • To investigate if stress concentration adjacent to the fusion level causes disc degeneration.
  • To compare outcomes between instrumented and non-instrumented posterolateral spinal fusions.

Main Methods:

  • Retrospective analysis of 139 patients (70 non-instrumented, 69 instrumented).
  • Follow-up averaged 5.7 years (non-instrumented) and 4.6 years (instrumented).
  • Evaluated facet joint osteoarthritis, instability, and disc resorption.

Main Results:

Related Experiment Videos

  • Instrumented fusion showed higher rates of facet joint osteoarthritis (28% vs 10%) and instability (23% vs 10%).
  • Disc resorption occurred in 9% of non-instrumented and 1% of instrumented patients.
  • Significant differences were observed in monosegmental fusions, but not polysegmental ones.

Conclusions:

  • Instrumentation in spinal fusion may lead to increased stress concentration.
  • Altered kinematics and material elasticity associated with instrumentation may contribute to adjacent segment degeneration.
  • Non-instrumented fusion demonstrated a potentially lower risk of adjacent segment pathology.