Fig. 3 | Archives of Orthopaedic and Trauma Surgery

Fig. 3

From: Anatomic relations of the median nerve to the ulnar insertion of the brachialis muscle: safety issues and implications for medial approaches to the elbow joint

Fig. 3

Summary of the main study results. a Diagram of the medial aspect of the elbow in full extension and 90° flexion with two superimposed black dashed lines, representing the measurement direction. The green segments highlight the distance between the median nerve and the most proximal and the most distal points of the brachialis insertion in different study conditions. b Comparison of distances between median nerve and the brachialis muscle obtained in different study conditions, highlighting the role of the measurement point on the brachialis insertion and of elbow flexion. Each box represents the mean distance normalized to the TED. The error bars show the 95% confidence interval values. A Tukey’s multiple comparisons test was used to test for differences between measurements obtained from different points of the brachialis insertion and at different degrees of elbow flexion. All illustrated measurements were conducted with the forearm in neutral position. TED transepicondylar distance. Only p values < 0.05 are indicated: *p < 0.05; **p < 0.01; ***p < 0.001; ****p < 0.0001

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