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Table 2 Measurements of the GM muscle and distances between the ITC and SN

From: Modified osteotomy of posterolateral overhanging part of the trochanter via posterior approach for hip arthroplasty: an anatomical study

Measurement

Mean ± standard deviation (cm)

Range (cm)

Length

12.12 ± 1.26

10.26–14.02

Width

12.38 ± 0.65

11.48–13.36

Width of the insertion

4.81 ± 0.86

3.88–5.84

T-GM, split–SGN (1.8 cm)

5.70 ± 0.66

4.54–6.62

T-GM, split–SGA (1.8 cm)

6.33 ± 0.56

5.66–7.92

Upper distance

2.22 ± 0.20

1.89–2.52

Middle distance

1.90 ± 0.31

1.30–2.35

Lower distance

1.97 ± 0.14

1.27–2.16

  1. GM Gluteus maximus, ITC Intertrochanteric crest, SN Sciatic nerve, T-GM Transgluteal maximus; upper, middle, and lower mean distance from the intertrochanteric crest to sciatic nerve, SGN Superior gluteal nerve, SGA Superior gluteal artery