Skip to main content

Table 1 Overview of the different grades of the OARSI and AHO score

From: Viscoelasticity and histology of the human cartilage in healthy and degenerated conditions of the knee

 

Scores

Grade

OARSI [39]

AHO [41]

0

 

No evident subchondral bone sclerosis, articular cartilage directly connected to the bone

1

Cartilage surface intact

Some subchondral sclerosis, bone volume increased, cartilage contact with the bone marrow

2

Cartilage surface discontinuity

Distinct increase in subchondral sclerosis and bone volume, fibrillation in subchondral bone, no contact of the bone marrow to the articular cartilage

3

Vertical fissures within the cartilage

Late-stage disease, severe subchondral sclerosis and massively increased bone volume, bone marrow distance from the cartilage increases

4

Erosion

 

5

Denudation

 

6

Deformation

Â