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Table 2 Preoperative and postoperative radiographic and clinical results

From: Rotation scarf + Akin osteotomy for severe hallux valgus with a new evaluation index: distance between the first and second metatarsals

 

Preoperative

Postoperative

Mean correction

P value

HVA

45.7 ± 5.0

12.1 ± 7.2

33.6

 < 0.001a

IMA

15.2 ± 3.4

4.2 ± 2.5

11

 < 0.001a

DMAA

29.7 ± 11.8

16.0 ± 7.1

13.7

 < 0.001a

TSP

6(5–6)

4(3–4)

2

 < 0.001b

MT-I length

56.4 ± 4.4 mm

53.3 ± 4.5 mm

3.1 mm

 < 0.001a

MT-I to II/II to III distance

3.3(2.9–3.9)

1.8(1.5–2.1)

1.5

 < 0.001b

VAS

5(4–5)

0(0–1)

5

 < 0.001b

AOFAS

35(32–40)

95(89–100)

60

 > 0.001b

  1. IM Intermetatarsal, HV Hallux valgus, TSP Tibial sesamoid position, MT-I First metatarsal bone, MT-I to II/II to III distance Ratio between the vertical distance from the lateral of the first metatarsal head to the medial of the second metatarsal head and the vertical distance of lateral of the second metatarsal head to the medial of the third metatarsal head, VAS Visual analog scale, AOFAS American Orthopaedic Foot and Ankle Society
  2. aValues are given as the mean ± standard deviation, the statistical analysis was conducted using paired Student t test
  3. bValues are given as the median (interquartile range), the statistical analysis was conducted using a Wilcoxon rank-sum test