From the School of Clinical Medicine, Jining Medical University, Jining, China (Zhao), and the Department of Joint Surgery and Sports Medicine, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, China (Wen and Zhang).

None of the following authors or any immediate family member has received anything of value from or has stock or stock options held in a commercial company or institution related directly or indirectly to the subject of this article: Zhao, Wen, and Zhang.