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Related Experiment Video

Updated: Jun 30, 2026

Reproducible Mouse Sciatic Nerve Crush and Subsequent Assessment of Regeneration by Whole Mount Muscle Analysis
08:49

Reproducible Mouse Sciatic Nerve Crush and Subsequent Assessment of Regeneration by Whole Mount Muscle Analysis

Published on: February 22, 2012

Side distinct sciatic nerve recovery differences between rats and mice.

Roman Pavić1, Michele L Pavić, Ozana Katarina Tot

  • 1Department of Surgery, University Hospital Osijek, Medical School, J. J. Strossmayer University, Osijek, Croatia. roman.pavic@os.t-com.hr

Somatosensory & Motor Research
|September 30, 2008
PubMed
Summary
This summary is machine-generated.

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The Sciatic Functional Index (SFI) reveals distinct sciatic nerve injury recovery patterns in rats and mice. Modified SFI calculations highlight species-specific compensatory mechanisms during nerve regeneration.

Area of Science:

  • Neuroscience
  • Regenerative Medicine
  • Animal Models

Background:

  • The Sciatic Functional Index (SFI) is a standard method for assessing sciatic nerve injury recovery.
  • Previous studies primarily utilized rats, with recent applications in mice.
  • Understanding species-specific recovery is crucial for translational research.

Purpose of the Study:

  • To compare sciatic nerve injury recovery between rats and mice using a modified SFI calculation.
  • To investigate compensatory mechanisms in the contralateral limb during nerve regeneration.

Main Methods:

  • Sciatic nerve crush injury (60s, 49.2 N) was induced in rats and mice.
  • Walking track data was collected preoperatively and at multiple time points post-injury (1-28 days).
  • SFI was calculated traditionally and using a 'split' method comparing injured and contralateral limbs.

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Functional and Physiological Methods of Evaluating Median Nerve Regeneration in the Rat
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Functional and Physiological Methods of Evaluating Median Nerve Regeneration in the Rat

Published on: April 18, 2020

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Last Updated: Jun 30, 2026

Reproducible Mouse Sciatic Nerve Crush and Subsequent Assessment of Regeneration by Whole Mount Muscle Analysis
08:49

Reproducible Mouse Sciatic Nerve Crush and Subsequent Assessment of Regeneration by Whole Mount Muscle Analysis

Published on: February 22, 2012

Functional and Physiological Methods of Evaluating Median Nerve Regeneration in the Rat
12:09

Functional and Physiological Methods of Evaluating Median Nerve Regeneration in the Rat

Published on: April 18, 2020

Main Results:

  • Traditional SFI calculations showed typical recovery curves in both species.
  • The 'split' SFI revealed that mice exhibited stable contralateral limb function.
  • Rats displayed increased contralateral limb SFI, suggesting compensatory overutilization.

Conclusions:

  • Modified SFI analysis highlights significant differences in sciatic nerve injury recovery between rats and mice.
  • Rats demonstrate contralateral limb compensation, unlike mice, impacting functional recovery assessment.
  • These findings are critical for interpreting preclinical nerve regeneration studies.