Related Experiment Video
Updated: Jul 30, 2026
09:31
Evaluation of Stem Cell Therapies in a Bilateral Patellar Tendon Injury Model in Rats
Published on: March 30, 2018
A new model for experimental tendon adhesions in the chicken
M Jaibaji1, G S Brody, K Rodgers
1Division of Plastic and Reconstructive Surgery, University of Southern California, Los Angeles, USA.
Annals of Plastic Surgery
|March 1, 2000
Summary
This study introduces a simple chicken model for inducing tendon adhesions. The model effectively replicates adhesions, showing significant functional deficits compared to controls, and aids in evaluating treatments.
Area of Science:
- Orthopedics
- Biomechanical Engineering
- Veterinary Science
Background:
- Tendon adhesions significantly impair function after injury.
- Developing reliable animal models is crucial for studying adhesion formation and prevention.
Purpose of the Study:
- To describe and validate a novel, minimally invasive animal model for inducing tendon and synovial sheath adhesions.
- To assess the functional and biomechanical consequences of induced adhesions in avian digits.
Main Methods:
- A manual abrader was used to create controlled abrasive injuries to the flexor synovial sheath and profundus tendon in avian long toes.
- Two groups of birds received injuries of varying severity, with functional assessments (range of motion, grasping ability, flexion deficit) and biomechanical testing performed 5 weeks postoperatively.
- Comparison was made against non-surgical control groups.
Main Results:
- Abraded digits in both injury groups showed significant functional and biomechanical deficits compared to controls (p < 0.001).
- A dose-dependent relationship was observed, with more severe injuries (Group II) resulting in greater deficits than less severe injuries (Group I).
Conclusions:
- This manual abrasion model is a simple, reproducible method for generating long-segment tendon and sheath adhesions in avian digits.
- The model serves as a valuable tool for evaluating therapeutic strategies aimed at preventing or treating adhesions.
