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 Concept Videos

Frictional Forces on Screws01:17

Frictional Forces on Screws

Screws are characterized by a helical ridge known as a thread wrapped around a cylindrical shaft. They are commonly used as fasteners to hold objects together or to transmit power and motion in machines. One type of screw that is particularly useful for transmitting power is the square-threaded screw.
A jack with a square-threaded screw is a mechanical device used to lift heavy loads by applying a force at its handle. When the force is applied, the screw turns, raising the load. The screw can...
Self-Locking Screw01:16

Self-Locking Screw

A square-threaded screw jack is a mechanical device widely used for lifting heavy loads or applying considerable force. One of the key features that can make a screw jack more effective and reliable is its self-locking capability.
A square-threaded screw jack carrying a load is considered self-locking if the screw retains its position even after the moment applied to it is removed.

You might also read

Related Articles

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

Sort by
Same author

Bone tunnel placement influences shear stresses at the coracoid process after coracoclavicular ligament reconstruction: a finite element study and radiological analysis.

Archives of orthopaedic and trauma surgery·2022
Same author

[Growth modulation through hemiepiphysiodesis : Novel surgical techniques: risks and progress].

Der Orthopade·2021
Same author

A biomechanical comparison of steel screws versus PLLA and magnesium screws for the Latarjet procedure.

Archives of orthopaedic and trauma surgery·2021
Same author

[Long version on the S3 guidelines for axial spondyloarthritis including Bechterew's disease and early forms, Update 2019 : Evidence-based guidelines of the German Society for Rheumatology (DGRh) and participating medical scientific specialist societies and other organizations].

Zeitschrift fur Rheumatologie·2019
Same author

Growth modulation in idiopathic angular knee deformities: is it predictable?

Journal of children's orthopaedics·2019
Same author

[Application of motorized intramedullary lengthening nails in skeletally immature patients : Indications and limitations].

Der Unfallchirurg·2018
Same journal

[Fast-track hip and knee joint arthroplasty].

Der Orthopade·2022
Same journal

[Outpatient care through cross-sector prehabilitation and rehabilitation concepts in outpatient hip and knee arthroplasty].

Der Orthopade·2022
Same journal

[Preoperative management in fast-track arthroplasty].

Der Orthopade·2022
Same journal

[Perioperative management in fast-track arthroplasty].

Der Orthopade·2022
Same journal

[Pain therapy and anaesthesiological procedures in fast-track arthroplasty].

Der Orthopade·2022
Same journal

[Discharge readiness versus discharge-Results of the PROMISE study].

Der Orthopade·2022
See all related articles

Related Experiment Video

Updated: Jun 12, 2026

Pedicle Screw Placement Using an Augmented Reality Head-Mounted Display in a Porcine Model
06:18

Pedicle Screw Placement Using an Augmented Reality Head-Mounted Display in a Porcine Model

Published on: May 24, 2024

[Pedicle screw augmentation from a biomechanical perspective].

V Bullmann1, U R Liljenqvist, R Rödl

  • 1Klinik und Poliklinik für Allgemeine Orthopädie und Tumororthopädie, Universitätsklinikum Münster, Albert Schweitzer Strasse 33, 48149, Münster, Deutschland. bullmanv@uni-muenster.de

Der Orthopade
|June 5, 2010
PubMed
Summary
This summary is machine-generated.

Cement augmentation significantly enhances pedicle screw stability in osteoporotic spine surgery, increasing pullout force by up to 278%. Perforated screw augmentation may reduce cement leakage risks.

More Related Videos

An Anesthesia, Surgery, and Harvest Method for the Evaluation of Transpedicular Screws Using an In Vivo Porcine Lumbar Spine Model
09:07

An Anesthesia, Surgery, and Harvest Method for the Evaluation of Transpedicular Screws Using an In Vivo Porcine Lumbar Spine Model

Published on: May 31, 2017

Minimally Invasive Treatment for Thoracolumbar Burst Fracture Using Sagittal Alignment Screws and A Trauma Reduction Device
04:19

Minimally Invasive Treatment for Thoracolumbar Burst Fracture Using Sagittal Alignment Screws and A Trauma Reduction Device

Published on: November 8, 2024

Related Experiment Videos

Last Updated: Jun 12, 2026

Pedicle Screw Placement Using an Augmented Reality Head-Mounted Display in a Porcine Model
06:18

Pedicle Screw Placement Using an Augmented Reality Head-Mounted Display in a Porcine Model

Published on: May 24, 2024

An Anesthesia, Surgery, and Harvest Method for the Evaluation of Transpedicular Screws Using an In Vivo Porcine Lumbar Spine Model
09:07

An Anesthesia, Surgery, and Harvest Method for the Evaluation of Transpedicular Screws Using an In Vivo Porcine Lumbar Spine Model

Published on: May 31, 2017

Minimally Invasive Treatment for Thoracolumbar Burst Fracture Using Sagittal Alignment Screws and A Trauma Reduction Device
04:19

Minimally Invasive Treatment for Thoracolumbar Burst Fracture Using Sagittal Alignment Screws and A Trauma Reduction Device

Published on: November 8, 2024

Area of Science:

  • Orthopedic Surgery
  • Biomedical Engineering
  • Spinal Instrumentation

Context:

  • Osteoporosis presents significant challenges in spinal instrumentation, leading to kyphosis, vertebral fractures, and implant failure.
  • Pedicle screw stability is critically dependent on bone mineral density, screw dimensions, and augmentation techniques.
  • Cement augmentation is a viable strategy to improve pedicle screw fixation in osteoporotic vertebrae.

Purpose:

  • To evaluate the efficacy of cement augmentation in enhancing pedicle screw stability in osteoporotic spines.
  • To compare different cement augmentation techniques, specifically pre-insertion versus post-insertion via perforated screws.
  • To assess the incidence and management of cement leakages and the feasibility of revision surgeries.

Summary:

  • Cement augmentation can increase pedicle screw pullout force by 96-278% in severe osteoporosis.
  • Two augmentation methods exist: pre-insertion into fresh cement or post-insertion via a perforated screw.
  • Perforated screw augmentation may offer better control over cement leakage, and revision surgeries are clinically manageable.

Impact:

  • Cement augmentation improves the mechanical stability of spinal implants in osteoporotic patients.
  • Understanding leakage risks and revision strategies optimizes surgical outcomes.
  • This research provides valuable insights for surgeons managing complex spinal cases with compromised bone quality.