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Fig. 3 | Journal of Orthopaedic Surgery and Research

Fig. 3

From: Baseplate inferior offset affects shoulder range of motion in reverse shoulder arthroplasty in Asian population

Fig. 3

Axis at the scapula and humerus. A Axis defined by Zedshoulder © at the scapula. O: Midpoint at the anteroposterior direction of the glenoid cavity, X: Perpendicular line to the Z-axis and Y-axis, Y: Parallel line to a perpendicular line drawn from the angulus inferior to the Z-axis, and Z: Line connecting the center point of glenoid and trigonum spinae scapulae. B Axis defined by International Society of Biomechanics at the humerus. O: The origin coincident with the glenohumeral rotation center (GH). Y: The line connecting GH and the midpoint of the lateral epicondyle and medial epicondyle. X: A line perpendicular to the plane formed by the lateral epicondyle, medial epicondyle, and GH. Z: A line perpendicular to the Y and X axis

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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X