Measurements of transversus abdominis muscle taken at different anatomical landmarks
Xiphisternum | Minimum | Maximum | Mean±SD | Median | IQR | P-value | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
R | L | R | L | R | L | R | L | R | L | ||||||
Distance between medial margin of TA to LA (mm) | 11.31 | 10.6 | 24.72 | 20.9 | 17.0±4.7 | 15.6±3.2 | 16.9 | 15.7 | 20.6–12.8 | 17.9–12.9 | 0.40 | ||||
Distance between the lateral border of RA to LA (mm) | 54.1 | 56.9 | 92.7 | 83.4 | 75.9±12.4 | 69.8±8.5 | 82.6 | 68.6 | 84.8–64.4 | 77.6–62.2 | 0.02 |
||||
TA distance (RL–TL) | 41.3 | 39.7 | 80.6 | 80.2 | 61.6±11.8 | 58.9±11.9 | 61.3 | 60.6 | 70.5–52.6 | 67.7–52.1 | 0.37 | ||||
Midway between xiphisternum and umbilicus | |||||||||||||||
Distance between medial margin of TA to LA (mm) | 20.5 | 21.25 | 72.71 | 51.77 | 49.4±16.0 | 42.8±9.3 | 49.5 | 47.1 | 63.6–37.2 | 64.4–49.5 | 0.53 | ||||
Distance between the lateral border of RA to LA (mm) | 48.2 | 48.3 | 92.7 | 83.4 | 74.8±12.7 | 69.9±9.4 | 77.2 | 71.3 | 84.6–66.5 | 77.1–65.5 | 0.05 | ||||
TA distance (RL–TL) | 12.84 | 15.5 | 39.1 | 36.6 | 25.4±9.0 | 27.1±5.9 | 27.4 | 27.8 | 32.8–15.9 | 32.1–15.2 | 0.29 | ||||
Umbilicus | |||||||||||||||
Distance between medial margin of TA to LA (mm) | 58.6 | 57.8 | 125.6 | 114.4 | 93.8±19.2 | 91.0±17.9 | 98.3 | 95.6 | 102.6–96.4 | 106.8–81.1 | 0.12 | ||||
Distance between the lateral border of RA to LA (mm) | 51.1 | 56.2 | 85.7 | 89.8 | 69.2±10.3 | 69.6±9.9 | 68.5 | 69.4 | 74.3–61.2 | 76.6–60.6 | 0.80 | ||||
TA distance (RL–TL) | –40 | –38.8 | –67 | –1.7 | –24.6±11.9 | –21.4±12.4 | –27.4 | –21.3 | –19.6 to –34.8 | –8.9 to –33.3 | 0.26 | ||||
Arcuate line | |||||||||||||||
Distance between medial margin of TA to LA (mm) | 58.4 | 48.2 | 107 | 97.7 | 88.7±13.5 | 83.3±14.7 | 92.4 | 87.4 | 95.9–87.2 | 93.9–79.9 | 0.15 | ||||
Distance between the lateral border of RA to LA (mm) | 53.7 | 52.8 | 82.4 | 77 | 63.7±7.7 | 63.3±6.2 | 63.3 | 61.6 | 66.9–57.7 | 67.3–59.6 | 0.70 | ||||
TA distance (RL–TL) | –36.3 | –37.2 | –4.1 | 11.6 | –24.9±8.6 | –19.9±14.4 | –27 | –23 | –23.4 to –30.2 | –10.5 to –32.1 | 0.18 | ||||
Midway between arcuate line and symphysis pubis | |||||||||||||||
Distance between medial margin of TA to LA (mm) | 56.2 | 58.5 | 82.6 | 73.4 | 73.2±6.9 | 67.0±4.7 | 76 | 67.3 | 77.2–72.4 | 71.2–63.4 | 0.01 |
||||
Distance between the lateral border of RA to LA (mm) | 41.5 | 39.5 | 68.2 | 67.3 | 50.4±6.9 | 48.1±8.7 | 49.3 | 45.2 | 53.5–45.9 | 49.7–41.3 | 0.34 | ||||
TA distance (RL–TL) | –30.9 | –26.5 | –6 | –5.7 | –22.9±6.5 | –18.9±6.0 | –24.1 | –20.4 | –17.3 to –28.1 | –15.2 to –23.3 | 0.11 |
Shows the distance from the linea alba (LA) to the medial border of transversus abdominis (TA) and the lateral border of rectus abdominis (RA) measured at different anatomical levels. Negative distances indicate overlap. Positive distances indicate lack of overlap. Mean TA distance is calculated by RL–TL. IQR, interquartile range; R, right; L, left. The P-value is obtained by means of 2 tailed paired t-test. *Statistically significant.
© Anatomy & Cell Biology. All Rights Reserved. Powered by INFOrang.co., Ltd