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Related Experiment Video

Updated: Jul 9, 2026

A Mini-Invasive Internal Fixation Technique for Studying Immobilization-Induced Knee Flexion Contracture in Rats
05:34

A Mini-Invasive Internal Fixation Technique for Studying Immobilization-Induced Knee Flexion Contracture in Rats

Published on: May 20, 2019

A new hinged dynamic distractor, for immediate mobilization after knee dislocations: Technical note.

Stefano Zaffagnini1, Francesco Iacono, Mirco Lo Presti

  • 1IX Division Department of Biomechanics, Rizzoli Orthopaedics Institute, Bologna, Italy. s.zaffagnini@biomec.ior.it

Archives of Orthopaedic and Trauma Surgery
|December 7, 2007
PubMed
Summary

Related Concept Videos

Knee Joint01:23

Knee Joint

The knee joint is the most complicated joint in the body. It consists of three articulations– two tibiofemoral and one patellofemoral. As is characteristic of synovial joints, the knee joint has a thin articular capsule that partially surrounds this joint cavity. Additionally, several ligaments, muscles, and cartilaginous structures support the movement of the knee.
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris group...

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This study introduces a new dynamic external fixator (EF) for knee dislocations treated with posterior cruciate ligament (PCL) reconstruction. This device allows early joint mobilization and staged anterior cruciate ligament (ACL) repair, potentially lowering complication rates.

Area of Science:

  • Orthopedic surgery
  • Biomedical engineering
  • Traumatology

Background:

  • Knee dislocation presents complex challenges due to associated structural damage and optimal treatment strategies.
  • Multiple ligament knee injuries often require extensive surgical intervention, increasing complication risks.

Observation:

  • A novel dynamic external fixator (EF) was developed for knee dislocation management.
  • The EF is designed for immediate application following posterior cruciate ligament (PCL) reconstruction.

Findings:

  • The dynamic EF facilitates early postoperative joint mobilization after knee dislocation and PCL reconstruction.
  • This approach allows for a delayed anterior cruciate ligament (ACL) reconstruction if necessary.

Implications:

Related Experiment Videos

Last Updated: Jul 9, 2026

A Mini-Invasive Internal Fixation Technique for Studying Immobilization-Induced Knee Flexion Contracture in Rats
05:34

A Mini-Invasive Internal Fixation Technique for Studying Immobilization-Induced Knee Flexion Contracture in Rats

Published on: May 20, 2019

  • This technique may reduce the overall complication rate associated with complex knee ligament surgeries.
  • Early mobilization enabled by the EF could improve patient outcomes and rehabilitation.
  • The staged surgical approach offers flexibility in managing multi-ligament knee injuries.