Table 3.
Dimensions of the AOFAS function subscale according to the foot type.
| AOFAS Function Subscale |
Pronated
( n = 13) Mean |
Neutral
( n = 6) Mean |
Supinated
( n = 9) Mean |
Kruskal-Wallis
H ( p ) |
|
|---|---|---|---|---|---|
| Activity Limitations (10 points) |
Pre- | 5.1 ± 1.5 | 5.5 ± 1.6 | 5.7 ± 1.6 | (0.649) 0.726 |
| 6 months | 8.8 ± 1.5 | 9.0 ± 1.5 | 8.7 ± 1.6 | (0.186) 0.911 | |
| 12 months | 9.5 ± 1.1 | 10.0 ± 0.0 | 9.7 ± 1.0 | 0.982) 0.612 | |
| Footwear requirements (10 points) | Pre- | 4.6 ± 1.4 | 4.2 ± 2.0 | 3.8 ± 2.2 | (0.918) 0.632 |
| 6 months | 6.1 ± 2.2 | 6.7 ± 2.6 | 6.1 ± 2.2 | 0.275) 0.872 | |
| 12 months | 8.1 ± 2.5 | 7.5 ± 2.7 | 7.8 ± 2.6 | (0.228) 0.892 | |
| MTP joint motion (10 points) |
Pre- | 5.8 ± 2.8 | 8.3 ± 2.6* | 5.6 ± 1.7 | (5.218) 0.074 |
| 6 months | 9.2 ± 1.9 | 10.0 ± 0.0 | 10.0 ± 0.0 | (2.396) 0.302 | |
| 12 months | 9.2 ± 1.9 | 10.0 ± 0.0 | 10.0 ± 0.0 | (2.396) 0.302 | |
| IP joint motion (5 points) |
Pre- | 1.9 ± 2.5 | 4.2 ± 2.0 | 1.7 ± 2.5 | (4.086) 0.130 |
| 6 months | 5.0 ± 0.0 | 5.0 ± 0.0 | 3.3 ± 2.5 | (6.840) 0.033** | |
| 12 months | 5.0 ± 0.0 | 5.0 ± 0.0 | 3.9 ± 2.2 | (4.385) 0.112 | |
| MTP-IP Stability (5 points) |
Pre- | 5.0 ± 0.0 | 4.2 ± 2.0 | 3.9 ± 2.2 | (2.920) 0.232 |
| 6 months | 5.0 ± 0.0 | 5.0 ± 0.0 | 5.0 ± 0.0 | (0.000) 1.00 | |
| 12 months | 5.0 ± 0.0 | 5.0 ± 0.0 | 5.0 ± 0.0 | (0.000) 1.00 | |
| MTP-IP related callus (5 points) |
Pre- | 0.4 ± 1.4 | 1.7 ± 2.6 | 0.0 ± 0.0 | (4.255) 0.119 |
| 6 months | 4.6 ± 1.4 | 5.0 ± 0.0 | 4.4 ± 1.7 | (0.657) 0.720 | |
| 12 months | 4.6 ± 1.4 | 5.0 ± 0.0 | 4.4 ± 1.7 | (0.657) 0.720 | |
MTP, metatarsal-phalangeal joint; IP, interphalangeal joint.
*
as compared to supinated feet (Mann-Whitney test; Z:4.667; p = 0.031).
**
statistically significant difference among the 3 foot types.