Abstract:ObjectiveTo evaluate the clinical efficacy of individualized surgical procedures for patients with flexible high arch varus caused by hereditary motor-sensory neuropathy(HMSN).MethodThe clinical data of 17 patients (26 feet) with HMSN flexible high arch varus who received treatment from April 2013 to March 2019 were retrospectively analyzed.All patients were treated with individualized soft tissue surgery (release,extension,transposition) and osteotomy (osteotomy of hindfoot,midfoot and metatarsal).The changes of pitch angle (Pitch angle),first metatarsal angle (Hibb′s angle),first metatarsal angle (Meary′s angle) and calcaneal varus angle (CVA) of all affected feet were measured before operation and at the last follow-up.Maryland scores was evaluated before operation and at the last follow-up.The patients′ subjective satisfaction was evaluated by Likert scale.Results All the incisions were primary healing after operation,and no complications occurred.All patients were followed up for 13 to 26 (17.2±3.8) months.At the last follow-up,the Pitch angle,Hibb′s angle,Meary′s angle and CVA% of the affected feet were significantly improved compared with those before operation ( P<0.01).At the last follow-up,Maryland score was significantly improved compared with that before operation ［(88.7±8.2) vs (67.1±7.9), P<0.01］.According to Likert scale,10 cases (58.8%) were very satisfied,5 cases (29.4%) were satisfied,2 cases (11.7%) were general,the subjective satisfaction rate was 88.2%.Conclusion Early individualized surgical treatment can obtain satisfactory results for the flexible high arch varus caused by HMSN.