title: Authors' reply.
authors.affiliation: Jiangsu, China.
authors.forename: Ye
authors.initials: Y
authors.lastname: Sun
authors.affiliation: Jiangsu, China.
authors.forename: Qing
authors.initials: Q
authors.lastname: Jiang
mesh_terms: D059549:Anterior Cruciate Ligament Reconstruction; D001182:Arthroscopy / Q000009:adverse effects*; D058070:Asymptomatic Diseases / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000601:surgery*; D008297:Male; D016119:Posterior Cruciate Ligament / Q000601:surgery*; D054556:Venous Thromboembolism / Q000453:epidemiology*