Anatomical Variations of the Pectoralis Major Muscle: Notes on Their Impact on Pectoral Nerve Innervation Patterns and Discussion on Their Clinical Relevance
Table 4
Morphometric characteristics of entry points of the neurovascular pedicles within the pectoralis major muscle (PM) regarding the parasternal line.
Distance from the margin of the sternum (parasternal line) to the:
Min [mm]
Max [mm]
Mean [mm]
Median [mm]
SD [mm]
Male cadavers (n = 22)
entry points of the LPN to the clavicular part of PM
80.1
113.9
95.4
94.4
12.8
entry points of the LPN to the sternocostal part of PM
104.2
121.8
113.5
111.7
6.5
entry points of the MPN to the sternocostal part of PM
97.2
121.5
112.7
115.8
9.1
entry points of the MPN to the abdominal part of PM
110.1
134.8
120.7
119.4
8
Female cadavers (n = 18)
entry points of the LPN to the clavicular part of PM
48.9
79.1
67.1
67
10.6
entry points of the LPN to the sternocostal part of PM
84.5
101.7
91.2
89.2
6.5
entry points of the MPN to the sternocostal part of PM
85.5
107.8
100.1
102.2
7.4
entry points of the MPN to the abdominal part of PM
86.9
122.3
108.5
105.7
10.9
Total (n = 40)
entry points of the LPN to the clavicular part of PM
48.9
113.9
83.2
80.2
18.4
entry points of the LPN to the sternocostal part of PM
84.5
121.8
103.6
104.2
12.9
entry points of the MPN to the sternocostal part of PM
85.5
121.5
106.4
104.9
10.4
entry points of the MPN to the abdominal part of PM
