Descriptive Quantitative Analysis of Rearfoot Alignment Radiographic Parameters Andrew J. Meyr, Matthew R. Wagoner The Journal of Foot and Ankle Surgery; 20 May 2015 Quote: Although the radiographic parameters of the transverse talocalcaneal angle (tTCA), calcaneocuboid angle (CCA), talar head uncovering (THU), calcaneal inclination angle (CIA), talar declination angle (TDA), lateral talar–first metatarsal angle (lTFA), and lateral talocalcaneal angle (lTCA) form the basis of the preoperative evaluation and procedure selection for pes planovalgus deformity, the so-called normal values of these measurements are not well-established.
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Rearfoot Alignment Radiographic Parameters