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Sighary et al.’s classifications of anatomical variations of the descending genicular artery. (A) Type A—Initial bifurcation of the saphenous branch (SB) and the muscular/osteoarticular branch (MB/OAB) occurs above the midpoint between the DGA origin and the superior aspect of the medial femoral epicondyle. (B) Type B—Initial bifurcation of the SB and MB/OAB occurs below the level of the midpoint. (C) Type C—Separate origins of the SB and MB/OAB [83].
