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Related Experiment Video

Updated: Feb 1, 2026

Longitudinal Evaluation of Mouse Hind Limb Bone Loss After Spinal Cord Injury using Novel, in vivo, Methodology

Longitudinal Evaluation of Mouse Hind Limb Bone Loss After Spinal Cord Injury using Novel, in vivo, Methodology

Published on: December 7, 2011

Single limb immobilization model for bone loss from unloading.

Michael A Friedman¹, Yue Zhang¹, Jennifer S Wayne¹

¹Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, VA, United States.

Journal of Biomechanics

|December 16, 2018

Summary

This summary is machine-generated.

Single limb immobilization (SLI) effectively models bone loss from unloading in mice. This method uses the contralateral limb as a control, offering advantages for genetic studies compared to hindlimb suspension.

Keywords:

Bone Model Unloading

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Area of Science:

Orthopedics
Bone Biology
Animal Models

Background:

Hindlimb suspension is a common model for unloading-induced bone loss but requires a separate control group.
This limitation hinders genetic studies, especially with outbred mice.

Purpose of the Study:

To evaluate a single limb immobilization (SLI) model for inducing bone loss.
To compare SLI with the contralateral limb as an internal control.

Main Methods:

Male C57Bl/6J mice (young and adult) underwent unilateral limb immobilization for 1-3 weeks.
Bone mineral density, structure, and mechanical properties of immobilized and contralateral limbs were analyzed.

Main Results:

SLI significantly decreased tibial and femoral bone volume fraction, trabecular thickness, and number in young mice.
Adult mice showed similar decreases in femoral bone properties, with some mechanical properties also affected.
Observed bone loss patterns in SLI mirrored those seen with hindlimb suspension.

Conclusions:

Single limb immobilization (SLI) is an effective model for inducing bone loss in both growing and adult mice.
The contralateral limb serves as a suitable internal control, simplifying experimental design.
SLI offers a valuable alternative to hindlimb suspension for studying unloading-induced bone loss, particularly in genetic research.