Table 2 Comparison of X-ray and MRI measurements between patients in the MMPRT group and non-MMPRT group

 Contralateral side (°)

177.3 (176.0–178.8)

177.0 (176.0–178.4)

177.4 (176.3–179.3)

0.39

 Affected side (°)

178.3 (176.8–179.0)

178.3 (177.1–179.3)

178.4 (175.8–179.0)

0.42

 Contralateral side (mm)

6.7 (5.3–8.2)

8.5 (7.3–10.8)

5.7 (4.5–7.3)

<0.01*

 Affected side (mm)

7.3 (5.1–9.1)

8.5 (7.3–10.8)

5.7 (4.5–7.3)

<0.01*

 Contralateral side (mm)

5.1 (4.2–5.5)

5.1 (4.1–7.8)

5.0 (4.5–5.4)

0.64

 Affected side (mm)

6.0 (5.0–7.3)

7.2 (6.2–7.9)

5.4 (4.4–6.0)

<0.01*

 Difference between affected side and contralateral side (mm)

0.7 (0.2–2.1)

1.9 (0.8–2.6)

0.3 (−0.7–0.3)

<0.01*

 Contralateral side (mm)

4.9 (4.3–5.3)

5.0 (4.3–5.4)

4.7 (4.3–5.2)

0.36

 Affected side (mm)

4.1 (3.5–4.7)

3.8 (3.0–4.1)

4.5 (4.0–5.3)

<0.01*

 Difference between affected side and contralateral side (mm)

−0.6 (−1.4–−0.1)

−1.2 (−2.3–−0.7)

−0.1 (−0.5–0.3)

<0.01*

MRD (mm)

3.5 (2.5–4.5)

4.1 (3.7–5.2)

2.5 (0.8–3.3)

<0.01*