Fig. 6From: Anatomical study for the treatment of proximal humeral fracture through the medial approachThe diameter of the ACHA and PCHA. The mean diameters of the ACHA were 1.38 ± 0.39 mm (0.6 ~ 2.30 mm). The mean diameters of the PCHA were 2.74 ± 0.72 mm (1.4 ~ 4.00 mm). The mean ratio of the PCHA to ACHA is about 2.03 ± 0.68 (1.10 ~ 4.28)Back to article page