AUTHOR=Wang Qiuyuan , Guo Wanshou , Shi Zhencai , Wang Weiguo , Zhang Qidong 

TITLE=Unicompartmental Knee Arthroplasty for Knee Osteoarthritis With the Pellegrini–Stieda Lesion: A Case Report

JOURNAL=Frontiers in Surgery

VOLUME=Volume 9 - 2022

YEAR=2022

URL=https://www.frontiersin.org/journals/surgery/articles/10.3389/fsurg.2022.922896

DOI=10.3389/fsurg.2022.922896

ISSN=2296-875X

ABSTRACT=Pellegrini-Stieda lesion was described as ossification on the origin of medial collateral ligament (MCL). We present a case of end-stage knee osteoarthritis with Pellegrini-Stieda lesion treated by unicompartmental knee arthroplasty (UKA). During the postoperative follow-up, amazing change occurred that the ossification lesion disappeared gradually and did not relapse. It was supposed that the disappeared ossification was due to UKA changed the abnormal biomechanics of the varus osteoarthritic knee.