case_images: PMC5612026_01
case_images: Roentgenogram showing lateral patellar subluxation.
case_images: TOORTHJ-11-1028_F1.jpg
case_images: PMC5612026_01_TOORTHJ-11-1028_F1.jpg
case_images: F1
case_images: On initial examination, roentgenogram showed lateral patellar subluxation, a Q angle of 0 , congruence angle of -35 , and sulcus angle of 153  (Fig. 1).
case_images: Roentgenogram taken prior to the injury shows no lateral patellar subluxation.
case_images: TOORTHJ-11-1028_F2.jpg
case_images: PMC5612026_01_TOORTHJ-11-1028_F2.jpg
case_images: F2
case_images: The Kellgren-Lawrence grade for her knee had been 0, with a femorotibial angle of 175 , Q angle of 3 , congruence angle of 0 , and sulcus angle of 145  (Fig. 2).
case_images: Magnetic resonance imaging showing a slack and torn medial patellofemoral ligament at the femoral attachment.
case_images: TOORTHJ-11-1028_F3.jpg
case_images: PMC5612026_01_TOORTHJ-11-1028_F3.jpg
case_images: F3
case_images: T2-weighted magnetic resonance imaging showed a slack and torn MPFL at the femoral attachment (Fig. 3).
case_images: Roentgenogram of the hip joint shows a narrowing of the left joint space, which was diagnosed as left hip osteoarthritis.
case_images: TOORTHJ-11-1028_F4.jpg
case_images: PMC5612026_01_TOORTHJ-11-1028_F4.jpg
case_images: F4
case_images: However, roentgenogram of her hip joint showed narrowing of the left joint space, which was diagnosed as left hip OA (Fig. 4).