FIG. 2.
References for the stapes dimensions. A Lateral view and B inferior view. a long length of footplate, b short length of footplate, h total height of the stapes, h c height of the center of the mass. Other references not shown in the figure are as follows: A FT footplate area (medial surface), A FT_proj projected footplate area (to x–y plane), d FT_eq equivalent diameter of the footplate area, d FT_eq_proj equivalent diameter of the projected footplate area, V ST volume of the stapes. H represents the centroid of the stapes head surface with an offset from the origin O of the intrinsic frame (H offset) and O′ represents the center of mass of the stapes. The annular rim of the footplate is shown in red.