Case Report
Copyright ©The Author(s) 2022.
World J Clin Cases. Sep 6, 2022; 10(25): 9036-9043
Published online Sep 6, 2022. doi: 10.12998/wjcc.v10.i25.9036
Figure 4
Figure 4 Intraoperative images show that the surface of the knee cartilage was dark brown.