Abstract: Objective To explore the therapeutic values of menisci reformation and postoper-ative rehabilitation trainings in the treatment of infantile lateral discoid meniscus of both knees.Meth-ods A total of 14 patients with lateral discoid meniscus (28 knee-joints)admitted in our hospital from January 2005 to January 2010 served as study objects,in which 26 knee-joints were treated with menisci reformation and 2 with complete meniscectomy.Postoperative rehabilitation trainings were giv-en to all patients.Clinical efficacy,visual analogue scale (VAS)score and Lyshlom knee functional score before and after treatment as well as follow-up results were observed.Results All patients were with successful surgeries and followed up for 2 ~4 years with satisfactory results.Preoperative VAS and Lyshlom scores were (4.57 ±1.26)and (53.34 ±4.78)scores while postoperative ones were (0.92 ±0.13)and (92.25 ±1.34)scores,respectively,with postoperative excellent and effective rate of knee function were 82.14% (23 /28),which were all statistically significant when compared with treatment before (P <0.01).Conclusion Menisci reformation and postoperative rehabilitation train-ings have satisfactory clinical efficacy in the treatment of infantile lateral discoid meniscus of knee-joints,which can reserve the menisus tissues.