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

Cyclic loading of segmental spinal instrumentation.

F J Kummer1, M Neuwirth, S Yabut

  • 1Department of Bioengineering, Hospital for Joint Diseases Orthopaedic Institute, New York, NY 10003.

Bulletin of the Hospital for Joint Diseases Orthopaedic Institute
|January 1, 1988
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

Electronic measurement of frequency and duration of close nurse-patient contacts during patient care in intensive and intermediate care units: a cross-sectional observational study.

Infection prevention in practice·2026
Same author

Imbalance between procoagulant factors and natural coagulation inhibitors contributes to hypercoagulability in the critically ill COVID-19 patient: clinical implications.

European review for medical and pharmacological sciences·2020
Same author

[Comparative Cost Effectiveness of Clostridium Histolyticum Collagenase (Xiapex®) and Partial Fasciectomy for the Treatment of Dupuytren's Contracture in Austria].

Handchirurgie, Mikrochirurgie, plastische Chirurgie : Organ der Deutschsprachigen Arbeitsgemeinschaft fur Handchirurgie : Organ der Deutschsprachigen Arbeitsgemeinschaft fur Mikrochirurgie der Peripheren Nerven und Gefasse : Organ der V...·2016
Same author

One-stage reconstruction of isolated and combined tendon defects with the vascularized adductor magnus tendon graft: Surgical technique and preliminary results.

Journal of plastic, reconstructive & aesthetic surgery : JPRAS·2016
Same author

[Treatment of Dupuytren's disease with collagenase - a 1-year follow-up of 37 patients].

Handchirurgie, Mikrochirurgie, plastische Chirurgie : Organ der Deutschsprachigen Arbeitsgemeinschaft fur Handchirurgie : Organ der Deutschsprachigen Arbeitsgemeinschaft fur Mikrochirurgie der Peripheren Nerven und Gefasse : Organ der V...·2015
Same author

Mechanical effects of defect closure following BPTB graft harvest for ACL reconstruction.

International journal of sports medicine·2013
Same journal

Long-term evaluation of high tibial osteotomy for medial osteoarthritis of the knee.

Bulletin of the Hospital for Joint Diseases Orthopaedic Institute·1991
Same journal

Yearly changes of limb alignment toward varus as measured by the femorotibial angle after total knee arthroplasty.

Bulletin of the Hospital for Joint Diseases Orthopaedic Institute·1991
Same journal

Lateral retinaculum release in adolescent patellofemoral disorders: its relationship to peripheral nerve injury in the lateral retinaculum.

Bulletin of the Hospital for Joint Diseases Orthopaedic Institute·1991
Same journal

Stage classifications, types of joint destruction, and bone scintigraphy in Charcot joint disease.

Bulletin of the Hospital for Joint Diseases Orthopaedic Institute·1991
Same journal

Patellar inversion, a new operative technique preliminary results.

Bulletin of the Hospital for Joint Diseases Orthopaedic Institute·1991
Same journal

Posterior cruciate ligament reconstruction: a comparative study of two different methods.

Bulletin of the Hospital for Joint Diseases Orthopaedic Institute·1991
See all related articles

Three spinal stabilization instrumentations (SSI) showed varying displacements in vitro. While no SSI failure occurred after 50,000 cycles, fatigue failure is possible, necessitating cyclic testing over static testing for clinical relevance.

Area of Science:

  • Orthopedic biomechanics
  • Spinal instrumentation engineering

Background:

  • Spinal stabilization instrumentations (SSI) are crucial for treating spinal disorders.
  • Understanding the in-vitro mechanical behavior of SSI systems under cyclic loading is essential for predicting clinical performance and longevity.

Purpose of the Study:

  • To evaluate the in-vitro stability and rigidity of three different spinal stabilization instrumentation (SSI) systems.
  • To assess the displacement and potential failure mechanisms of SSI systems under cyclic loading.

Main Methods:

  • Three distinct SSI systems were subjected to cyclic loading in an in-vitro experimental setup.
  • Displacement at connecting interfaces was measured up to 50,000 cycles.
  • Static testing was compared to cyclic testing for evaluating failure modes.

Related Experiment Videos

Main Results:

  • Significant differences in displacement were observed among the three SSI systems during cyclic loading.
  • No complete failure of any SSI system was recorded within 50,000 cycles.
  • Minor damage and notable displacements were identified at some connecting interfaces, suggesting potential for fatigue failure.

Conclusions:

  • Cyclic loading reveals differential stability and potential failure modes in SSI systems not evident through static testing alone.
  • Augmenting static testing with cyclic testing is recommended for SSI evaluation due to the high number of cycles expected in clinical use (>10^6).
  • Further investigation into the fatigue life of SSI systems is warranted to ensure long-term clinical efficacy and patient safety.