case_images: PMC7593758_01
case_images: Lateral knee radiographs after bilateral patellar tendon rupture, showing patella alta, knee effusions, and irregularity of the patellar tendons. Confirmed diagnosis using the Insall-Salvati ratio.
case_images: CRIOR2020-8862600.001.jpg
case_images: PMC7593758_01_CRIOR2020-8862600.001.jpg
case_images: fig1
case_images: Insall-Salvati ratios measured 1.6 and 1.47 for right and left knee, respectively (Figure 1) (normal values range from 0.8 to 1.2; patella alta > 1.2 and patella baja < 0.8).
case_images: Intraoperative photo showing the ruptured patellar tendon of the right knee.
case_images: CRIOR2020-8862600.002.jpg
case_images: PMC7593758_01_CRIOR2020-8862600.002.jpg
case_images: fig2
case_images: The patellar tendon rupture was identified near the proximal osteotendinous junction bilaterally (Figure 2).
case_images: Radiographic control 10 weeks after surgery.
case_images: CRIOR2020-8862600.003.jpg
case_images: PMC7593758_01_CRIOR2020-8862600.003.jpg
case_images: fig3
case_images: The postoperative course was uneventful, and radiographic control was satisfactory (Figure 3).
case_images: Seven months after surgery: 135  flexion, 0  extension at both knees.
case_images: CRIOR2020-8862600.004.jpg
case_images: PMC7593758_01_CRIOR2020-8862600.004.jpg
case_images: fig4
case_images: Upon examination seven months after surgery, the patient showed an adequate range of motion of both knees (135  flexion, 0  extension) (Figure 4).