AOFAS Ankle-Hindfoot Scale Calculator

Visual AOFAS Ankle-Hindfoot Score Scale

AOFAS Ankle-Hindfoot Score : 0 / 100 = 0.0%

I. Pain (40 points)

1. Pain

None (40)Mild, occasional (30)Moderate, daily (20)Severe, almost always present (10)

II. Function (50 points)

2. Activity limitations, support requirements

No limitations, no support (10)No limitation of daily activities, limitations of recreational activities, no support (7)Limited daily and recreational activities, cane (4)Severe limitation of daily and recreational activities, walker, crutches, wheelchair, brace (0)

3. Maximum walking distance, blocks

Greater than six (5)Four-six (4)One-three (2)Less than one (0)

4. Walking surfaces

No difficulty on any surface (5)Some difficulty on uneven terrain, stairs, incliners, ladders (3)Severe difficulty on uneven terrain, stairs, incliners, ladders (0)

5. Gait abnormality

None, slight (8)Obvious (4)Marked (0)

6. Sagittal motion (flexion plus extension)

Normal or mild restriction (30 degrees or more) (8)Moderate restriction (15 degrees - 29 degrees) (4)Severe restriction (less than 15 degrees) (0)

7. Hindfoot motion (inversion plus eversion)

Normal or mild restriction (75% - 100% normal) (6)Moderate restriction (25% - 74% normal) (3)Marked restriction (less than 25% of normal) (0)

8. Ankle-hindfoot stability (anteroposterior, varus-valgus)

Stable (8)Definitely unstable (0)

III. Alignment (10 points)

9. Alignment

Good, plantigrade foot, ankle-hindfoot well aligned (10)Fair, plantigrade foot, some degree of ankle-hindfoot malalignment observed, no symptoms (5)Poor, nonplantigrade foot, severe malalignment, symptoms (0)

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