Related Experiment Video
Updated: Jun 18, 2025

A Reproducible Cartilage Impact Model to Generate Post-Traumatic Osteoarthritis in the Rabbit
Published on: November 21, 2023
PATHOPHYSIOLOGY OF POSTTRAUMATIC ANKLE OSTEOARTHRITIS: A MULTICENTER PERSPECTIVE
Alexandre Leme Godoy-Santos1,2, Cesar de Cesar3, Simone Santini4
1Universidade de São Paulo, Faculdade de Medicina, Hospital das Clínicas HC-FMUSP, Laboratório Prof Manlio Mario Marco Napoli, São Paulo, SP, Brazil.
Abstract:
Besides the acute injury and trauma-induced macroscopic alterations, the evolution to posttraumatic ankle osteoarthritis (PTOA) is a complex process progressing at the tissue and molecular level. Furthermore, changes in the molecular pathways affect chondrocyte viability. Treatment modalities for PTOA focal or confined disease include innovative techniques.
Objective:
Our purpose is to increase medical awareness based on scientific evidence of pathophysiology, molecular biology, and treatment of post-traumatic ankle osteoarthritis.
Methods:
To support the perspectives of the experts, evidence from the scientific literature respected the PRISMA guidelines and the PICOS search strategy was used. We included case-control, cohort, experimental studies and case reports, written in English.
Results:
The authors were homogeneously exposed to 282 selected abstracts and 114 full articles directly related to post-traumatic osteoarthritis after malleolar fractures.
Conclusion:
The pathophysiological factors involved in posttraumatic ankle osteoarthritis, such as biological, structural, mechanical, and molecular changes must be studied together, as the interaction between these factors determines the risk of progression of PTOA. Inhibition of a single catabolic molecule or cascade probably is not sufficient to alter the natural progression of the pathological process. Evidence level V, expert opinion.

