Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Stresses in a Shaft

Stresses in a Shaft

The shaft PQ is subjected to a twisting force when equal and opposite torques are applied on either side. A section that cuts perpendicular to the shaft's axis at any arbitrary point R is examined to understand this. When the free-body diagram of the QR segment is analyzed, it reveals the shearing forces exerted by the PR portion onto the QR segment as the shaft experiences twisting.
Applying equilibrium conditions to the QR segment establishes that the internal shearing forces within the...

Deformation in a Circular Shaft

Deformation in a Circular Shaft

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...

Transmission Shafts: Problem Solving

Transmission Shafts: Problem Solving

Designing a solid shaft that transmits power from a motor to a machine tool involves a series of calculations to ensure the shaft can withstand the stresses applied by bending moments and torques. First, calculate the torque exerted on the gear, considering the power transmitted by the shaft and its rotational speed. Following this, compute the tangential forces acting on the gears, which directly relate to the torque and the gear radius.
Next, use bending moment diagrams for the shaft to...

Design of Transmission Shafts

Design of Transmission Shafts

The design of a transmission shaft is governed by two primary specifications: the power it transmits and its rotational speed. These parameters guide the selection of the shaft's material and cross-sectional dimensions, ensuring that the material's maximum shearing stress remains within the elastic limit while transmitting the desired power at the given speed. The system's power is intrinsically linked to the applied torque. The torque applied to the shaft can be calculated by reconfiguring the...

Thin-Walled Hollow Shafts

Thin-Walled Hollow Shafts

In analyzing a thin-walled hollow shaft subjected to torsional loading, a segment with width dx is isolated for examination. Despite its equilibrium state, this segment faces torsional shearing forces at its ends. These forces are quantitatively described by the product of the longitudinal shearing stress on the segment's minor surface and the area of this surface, leading to the concept of shear flow. This shear flow is consistent throughout the structure, indicating a uniform distribution of...

Stress Concentrations in Circular Shafts

Stress Concentrations in Circular Shafts

Consider the elastic torsion formula, which applies to a circular shaft with a consistent cross-section. This formula assumes that the shaft's ends are loaded with rigid plates firmly attached. However, in many cases, torques are applied to the shaft through mechanisms like flange couplings or gears, which are connected by keys inserted into keyways. This application method modifies the stress distribution near the point of torque application, causing it to deviate from the distributions...

You might also read

Related Articles

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

Sort by

Same author

Results of a special interdisciplinary hand therapy program for work-related injuries.

Hand surgery & rehabilitation·2020

Same author

[Minimally invasive proximal hamstring insertion repair].

Operative Orthopadie und Traumatologie·2018

Same author

[Locking nails for humeral shaft fractures].

Der Unfallchirurg·2018

Same author

[Nationwide implementation of a hospital resource register for daily trauma care, mass casualties and disasters : Position paper of the German Trauma Society and the Federation of German Medical Directors of Emergency Medical Services].

Der Unfallchirurg·2018

Same author

[Open repair of gluteus medius and minimus tendons tears with double-row technique : Clinical and radiological results].

Der Orthopade·2018

Same author

[Upper extremity fractures in the elderly].

Zeitschrift fur Gerontologie und Geriatrie·2017

Same journal

[3D printing in fracture treatment : Current practice and best practice consensus].

Der Unfallchirurg·2022

Same journal

[3D printing in trauma surgery : Germany lags far behind].

Der Unfallchirurg·2022

Same journal

[Subtrochanteric fractures].

Der Unfallchirurg·2022

Same journal

[3D printing in the field of shoulder surgery].

Der Unfallchirurg·2022

Same journal

[New assessment recommendations for disability in private accident insurance, part 1 : An interdisciplinary consented approach-Basics].

Der Unfallchirurg·2022

Same journal

[Amputation techniques].

Der Unfallchirurg·2022

See all related articles

Search research articles

Related Experiment Video

Updated: Feb 7, 2026

Transverse Fracture of the Mouse Femur with Stabilizing Pin

Transverse Fracture of the Mouse Femur with Stabilizing Pin

Published on: December 29, 2021

[Humeral shaft fractures].

R Biber^1,2, H J Bail^3,4, M Geßlein^3,4

¹Klinik für Unfallchirurgie, Kliniken Dr. Erler, Kontumazgarten 4-18, 90429, Nürnberg, Deutschland. r.biber@erler-klinik.de.

Der Unfallchirurg

|July 29, 2018

Summary

This summary is machine-generated.

Humeral shaft fracture treatment lacks a gold standard due to multiple effective methods. Treatment decisions for these fractures depend on injury specifics and patient needs.

Keywords:

Braces N. radialis Nailing Palsy Plating

More Related Videos

Fracture Apparatus Design and Protocol Optimization for Closed-stabilized Fractures in Rodents

Fracture Apparatus Design and Protocol Optimization for Closed-stabilized Fractures in Rodents

Published on: August 14, 2018

Three-Dimensional Reconstruction of Orbital Fractures

Three-Dimensional Reconstruction of Orbital Fractures

Published on: May 16, 2025

Related Experiment Videos

Last Updated: Feb 7, 2026

Transverse Fracture of the Mouse Femur with Stabilizing Pin

Transverse Fracture of the Mouse Femur with Stabilizing Pin

Published on: December 29, 2021

Fracture Apparatus Design and Protocol Optimization for Closed-stabilized Fractures in Rodents

Fracture Apparatus Design and Protocol Optimization for Closed-stabilized Fractures in Rodents

Published on: August 14, 2018

Three-Dimensional Reconstruction of Orbital Fractures

Three-Dimensional Reconstruction of Orbital Fractures

Published on: May 16, 2025

Area of Science:

Orthopedic Surgery
Traumatology

Background:

Humeral shaft fractures present a bimodal age distribution, affecting young adults and older individuals.
Current treatment strategies for humeral shaft fractures yield good clinical outcomes, yet a definitive gold standard remains elusive.

Purpose of the Study:

To review current treatment modalities for humeral shaft fractures.
To discuss the decision-making process for conservative versus operative interventions.
To highlight common complications and their management.

Main Methods:

Review of existing literature on humeral shaft fracture treatments.
Analysis of surgical techniques including interlocking medullary nailing and plate osteosynthesis (ORIF and MIPO).
Discussion of conservative management approaches.

Main Results:

Multiple treatment options, including antegrade/retrograde nailing and plate osteosynthesis, demonstrate good clinical results.
No single method has shown clear superiority for treating humeral shaft fractures.
Radial nerve palsy is a common complication, with emergency revision not consistently improving outcomes.

Conclusions:

The optimal treatment for humeral shaft fractures is individualized, considering fracture characteristics and patient factors.
Further research is needed to establish a gold standard treatment protocol.
Management of associated radial nerve palsy requires careful consideration regarding surgical intervention timing.