Table 5 Maximum surface pressure (kPa) of the iliopsoas muscle when stem offset was changed.

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

 

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

Increased offset

456.6

139.8–696.9

0.012

203.8

32.1–561.8

0.066

57.9

10.3–357.0

0.093

23.9

5.2–85.6

0.594

Decreased offset

29.1

116.3–696.9

94.2

21.7–696.9

34.0

10.3–102.8

19.7

5.2–50.6

  1. Values are shown as the median and range. The Wilcoxon signed-rank test was used for comparisons between stem offset values.
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