Inner Synovial Membrane Footprint of the Anterior Elbow Capsule: An Arthroscopic Boundary

Figure 3

The dimensions measured were relative to the transepicondylar line (TEL). A: Horizontal distance along the TEL between the medial epicondyle (ME) and the medial edge of the synovial membrane (SM); B: horizontal distance between the ME to the apex of the SM overlying the coronoid fossa in the plane perpendicular to the TEL; C: horizontal distance between the ME and the nadir of the SM’s insertion in the plane perpendicular to the TEL; D: horizontal distance between the ME to the apex of the SM overlying the radial fossa in the plane perpendicular to the TEL; E: horizontal distance along the TEL between the lateral epicondyle (LE) and the lateral edge of the SM; F: the vertical height from the TEL to the apex of the SM overlying the coronoid fossa in the plane perpendicular to the TEL; G: the vertical height from the TEL to the nadir of the SM overlying the lateral edge of the trochlea in the plane perpendicular to the TEL; H: the vertical height from the TEL to the apex of the SM overlying the radial fossa in the plane perpendicular to the TEL.