case_images: PMC8371642_01
case_images: Preoperative X-rays (anteroposterior and lateral views) of patient 1: patella alta, Caton Deschamps index = 2.47.
case_images: CRIOR2021-9951754.001.jpg
case_images: PMC8371642_01_CRIOR2021-9951754.001.jpg
case_images: fig1
case_images: The Caton Deschamps index measured 2.47 on the X-rays, and the patella was 9 cm from the anterior tibial tuberosity (ATT) (Figure 1).
case_images: Preoperative MRI of patient 1: atrophy and poor tissue quality of the left quadriceps muscle.
case_images: CRIOR2021-9951754.002.jpg
case_images: PMC8371642_01_CRIOR2021-9951754.002.jpg
case_images: fig2
case_images: The preoperative magnetic resonance imaging (MRI) showed significant atrophy and poor tissue quality of the quadriceps muscle (Figure 2).
case_images: PMC8371642_02
case_images: Preoperative X-rays (anteroposterior and lateral views) of patient 2. Caton Deschamps index = 0.82.
case_images: CRIOR2021-9951754.003.jpg
case_images: PMC8371642_02_CRIOR2021-9951754.003.jpg
case_images: fig3
case_images: The Caton Deschamps index measured 0.82 on the X-rays (Figure 3).