Table 1 Maximum surface pressure (kPa) of the iliopsoas muscle when ACPL was changed.

From: Relationship between iliopsoas muscle surface pressure and implant alignment after total hip arthroplasty: a cadaveric study

ACPL, mm

20° of extension

10° of extension

Neutral

10° of flexion

Median

Range

P value

Median

Range

P value

Median

Range

P-value

Median

Range

P value

0

456.6

139.8–696.9

 

203.8

32.1–561.8

 

57.9

10.3–357.0

0.209

23.9

5.2–85.6

0.146

3

536.3

179.9–696.9

0.576

191.9

47.0–696.9

0.576

34.6

4.3–154.5

17.05

3.4–41.9

6

695

469.8–696.9

0.014

497.8

102.8–696.9

0.010

56.1

5.2–149.6

22.5

5.2–118.6

  1. Values are shown as the median and range. P value are from the Friedman test. For p values of < 0.05 in the Friedman test, the individual p values are shown for comparison with 0 mm based on the results of the post hoc test. ACPL, anterior cup protrusion length.
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