case_images: PMC6742885_01
case_images: Pre-operative clinical evaluation showing the abnormal medial patellar laxity.
case_images: JOCR-9-87-g001.jpg
case_images: PMC6742885_01_JOCR-9-87-g001.jpg
case_images: F1
case_images: At the clinical examination, the left patella appeared to be medialized compared to the opposite healthy side; the medial shift test showed a clear tendency toward medial subluxation accompanied by patient's discomfort (positive medial apprehension test) (Fig. 1).
case_images: Pre-operative radiographs of both knees.
case_images: JOCR-9-87-g002.jpg
case_images: PMC6742885_01_JOCR-9-87-g002.jpg
case_images: F2
case_images: Pre-operative imaging assessment included weight-bearing anteroposterior and lateral views of both knees (Fig. 2).
case_images: Intraoperative photograph showing the dissection of the hypertrophic medial patellofemoral ligament.
case_images: JOCR-9-87-g003.jpg
case_images: PMC6742885_01_JOCR-9-87-g003.jpg
case_images: F3
case_images: It consisted in an open medial retinacular release with complete dissection of the hypertrophic MPFL and a transfer of the vastus medialis oblique (VMO) to the superior border of the patella (Figs. 3 and 4).
case_images: Intraoperative photograph showing the transfer of the vastus medialis oblique to the superior border of the patella.
case_images: JOCR-9-87-g004.jpg
case_images: PMC6742885_01_JOCR-9-87-g004.jpg
case_images: F4
case_images: It consisted in an open medial retinacular release with complete dissection of the hypertrophic MPFL and a transfer of the vastus medialis oblique (VMO) to the superior border of the patella (Figs. 3 and 4).