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

Frames: Problem Solving I01:24

Frames: Problem Solving I

1.1K
Consider a jib crane with an external load suspended from the pulley. The dimensions of the crane members are shown in the figure. A systematic analysis of the frame structure is required to determine the reaction forces at the pin joints, assuming that the pulleys are frictionless.
1.1K
Angle of Twist: Problem Solving01:13

Angle of Twist: Problem Solving

873
An electric motor applies a torque of 700 N·m to an aluminum shaft, triggering a stable rotation. Two pulleys, B and C, are subjected to torques of 300 N·m and 400 N·m, respectively. The modulus of rigidity is provided as 25 GPa. With the knowledge of the length and diameter of each segment, the twist angle between the two pulleys can be computed. First, a section cut is made between pulleys B and C, and the cut cross-section is analyzed using a free-body diagram. Given that the torque...
873
Deformation in a Circular Shaft01:10

Deformation in a Circular Shaft

1.1K
One of the distinctive characteristics of circular shafts is their ability to maintain their cross-sectional integrity under torsion. In other words, each cross-section continues to exist as a flat, unaltered entity, simply rotating like a solid, rigid slab. To understand the distribution of shearing stress within such a shaft, consider a cylindrical section inside this circular shaft. This section has a length of L and a radius of R, with one end fixed. The radius of the cylindrical section is...
1.1K
Plastic Deformation in Circular Shafts01:20

Plastic Deformation in Circular Shafts

566
When materials are subjected to forces that surpass their yield strength, they undergo a process known as plastic deformation. This results in a permanent alteration or strain in their structure. This concept can be specifically applied to circular shafts, where the deformation leads to a change in its shape. The precise evaluation of this plastic deformation requires understanding the stress distribution within the circular shaft, which is achieved by calculating the maximum shearing stress in...
566
Muscles of the Forearm that Move the Hand and Fingers01:16

Muscles of the Forearm that Move the Hand and Fingers

3.1K
The muscles of the forearm that move the wrist, hand, and digits are numerous and diverse. They can be classified into two groups based on their location and function — the anterior and posterior compartment muscles.
Anterior Compartment
The anterior compartment muscles originate from the humerus. They primarily function as flexors and are also known as flexor muscles. They typically insert on the carpals, metacarpals, and phalanges. The superficial layer includes the flexor carpi...
3.1K
Bones of the Upper Limb: Radius01:09

Bones of the Upper Limb: Radius

10.9K
The radius is longer of the two bones that make up the human antebrachium or forearm. At the proximal end, the radius articulates with the capitulum of the humerus and the radial notch of the ulna to form the elbow joint. At the distal end, the radius articulates with the ulna via the ulnar notch, forming the distal radioulnar joint. Distally, the radius also attaches to the carpal wrist bones (scaphoid and lunate) to form the radiocarpal joint.
The radius has a nail-shaped head, and a...
10.9K

You might also read

Related Articles

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

Sort by
Same author

Preoperative immunotherapy with atezolizumab and tiragolumab in patients with colorectal liver metastases-the PURPLE trial.

ESMO gastrointestinal oncology·2026
Same author

New targets of PET imaging for renal cancer.

Seminars in nuclear medicine·2025
Same author

GMP- compliant formulation and quality control of sodium [<sup>124</sup>I]iodide for oral applications.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine·2025
Same author

Final overall survival and safety analyses of the phase III PSMAfore trial of [<sup>177</sup>Lu]Lu-PSMA-617 versus change of androgen receptor pathway inhibitor in taxane-naive patients with metastatic castration-resistant prostate cancer.

Annals of oncology : official journal of the European Society for Medical Oncology·2025
Same author

Fibroblast-directed PET imaging reveals a case of retroperitoneal fibrosis after immunotherapy for metastatic urothelial cancer of the upper tract.

Urology case reports·2025
Same author

[Importance of peptide receptor radionuclide therapy for the management of neuroendocrine tumours].

Radiologie (Heidelberg, Germany)·2025

Related Experiment Video

Updated: Apr 4, 2026

Development of a Novel Task-oriented Rehabilitation Program using a Bimanual Exoskeleton Robotic Hand
06:44

Development of a Novel Task-oriented Rehabilitation Program using a Bimanual Exoskeleton Robotic Hand

Published on: May 20, 2020

7.7K

[Pulley reconstruction in the hand].

M F Langer1, S Oeckenpöhler2, R Hartensuer2

  • 1Klinik für Unfall-, Hand- und Wiederherstellungschirurgie, Universitätsklinikum Münster, Waldeyerstr. 1, 48149, Münster, Deutschland. langer.martin@ukmuenster.de.

Der Orthopade
|September 4, 2015
PubMed
Summary
This summary is machine-generated.

Pulley insufficiency can impair flexor tendon function. Ring ligament reconstruction surgery offers significant benefits for patients, though phalanx fractures are a potential complication.

Keywords:
Biomechanical phenomenaFingerLigamentsReconstructive surgical proceduresTendon injuries

More Related Videos

Surface Electromyographic Biofeedback as a Rehabilitation Tool for Patients with Global Brachial Plexus Injury Receiving Bionic Reconstruction
09:14

Surface Electromyographic Biofeedback as a Rehabilitation Tool for Patients with Global Brachial Plexus Injury Receiving Bionic Reconstruction

Published on: September 28, 2019

12.3K
Author Spotlight: Enhancing Grasping Abilities for Hemiplegic Patients with Flexible Robotic Limbs
03:55

Author Spotlight: Enhancing Grasping Abilities for Hemiplegic Patients with Flexible Robotic Limbs

Published on: October 27, 2023

3.0K

Related Experiment Videos

Last Updated: Apr 4, 2026

Development of a Novel Task-oriented Rehabilitation Program using a Bimanual Exoskeleton Robotic Hand
06:44

Development of a Novel Task-oriented Rehabilitation Program using a Bimanual Exoskeleton Robotic Hand

Published on: May 20, 2020

7.7K
Surface Electromyographic Biofeedback as a Rehabilitation Tool for Patients with Global Brachial Plexus Injury Receiving Bionic Reconstruction
09:14

Surface Electromyographic Biofeedback as a Rehabilitation Tool for Patients with Global Brachial Plexus Injury Receiving Bionic Reconstruction

Published on: September 28, 2019

12.3K
Author Spotlight: Enhancing Grasping Abilities for Hemiplegic Patients with Flexible Robotic Limbs
03:55

Author Spotlight: Enhancing Grasping Abilities for Hemiplegic Patients with Flexible Robotic Limbs

Published on: October 27, 2023

3.0K

Area of Science:

  • Orthopedic surgery
  • Hand surgery
  • Tendon biomechanics

Context:

  • Flexor tendon pulleys are crucial for hand function.
  • Pulleys can be damaged by injury, infection, or iatrogenic causes.
  • The effects of pulley failure are often not well understood.

Purpose:

  • To investigate the impact of pulley insufficiency.
  • To identify clinical signs of pulley impairment.
  • To explore surgical reconstruction options for pulley defects.

Summary:

  • This study analyzed 64 patients experiencing various forms of pulley insufficiency.
  • Ring ligament reconstruction was performed as a treatment option.
  • Outcomes and potential complications were evaluated.

Impact:

  • All patients undergoing ring ligament reconstruction showed positive outcomes.
  • Pulley reconstruction surgeries are highly beneficial.
  • Phalanx fracture is a possible complication following surgery.