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Updated: May 7, 2025

A Mini-Invasive Internal Fixation Technique for Studying Immobilization-Induced Knee Flexion Contracture in Rats
Published on: May 20, 2019
Reduction and Fixation of an Unstable Knee Dislocation in a Morbidly Obese Patient Using an Internal Fixator: A Case
Tony Da Lomba1, Daniel Portney, Mary Kate Erdman
1Department of Orthopaedic Surgery and Rehabilitation Medicine, University of Chicago, Chicago, Illinois.
Case:
A 35-year-old man with morbid obesity sustained an ultra-low velocity (ULV) rotational knee dislocation secondary to a fall from standing. The patient was successfully treated using a subcutaneous knee-spanning internal fixator, the "INFIX" technique, which has previously been described for pelvic ring injuries.
Conclusion:
This novel technique maintained the stable reduction of an ULV knee dislocation in a patient with morbid obesity until adequate healing was achieved.
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