• 1. Department of Orthopaedics, Nanjing Hospital Affiliated to Nanjing Medical University (Nanjing First Hospital), Nanjing Jiangsu, 210006, P.R.China;
  • 2. Department of Orthopaedics, Xuzhou Central Hospital, Xuzhou Jiangsu, 221009, P.R.China;
XU Yan, Email: yanxu5427@aliyun.com
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ObjectiveTo explore the effectiveness and advantage of three-dimensional (3D) printed navigation templates assisted Ludloff osteotomy in treatment of moderate and severe hallux valgus.MethodsBetween April 2013 and February 2015, 28 patients (28 feet) with moderate and severe hallux valgus who underwent Ludloff osteotomy were randomly divided into 2 groups (n=14). In group A, the patients were treated with Ludloff osteotomy assissted with a 3D printed navigation template. In group B, the patients were treated with traditional Ludloff osteotomy. There was no significant difference in gender, age, affected side, and clinical classification between 2 groups (P>0.05). The operation time and intraoperative blood loss were recorded. The ankle function of the foot at preoperation, immediate after operation, and last follow-up were assessed by the American Orthopedic Foot and Ankle Society (AOFAS) score. Besides, the X-ray film were taken to assess the hallux valgus angle (HVA), intermetatarsal angle (IMA), and the first metatarsal length shortening.ResultsAll patients were followed up 18-40 months (mean, 26.4 months). The operation time and intraoperative blood loss in group A were significantly less than those in group B (P<0.05). The HVA, IMA, and AOFAS scores in groups A and B at immediate after operaton and last follow-up were sinificantly improved when compared with preoperative values (P<0.05); but no significant difference was found between at immediate after operation and at last follow-up (P>0.05). No significant difference was found in HVA and IMA between group A and group B at difference time points (P>0.05). There were significant differences in AOFAS score and the first metatarsal length shortening at immediate after operation and at last follow-up between 2 groups (P<0.05). Except 1 case of metastatic metatarsalgia in group B, there was no other operative complications in both groups.Conclusion3D printed navigation template assisted Ludloff osteotomy can provide accurate preoperative planning and intraoperative osteotomy. It is an ideal method for moderate and severe hallux valgus.

Citation: XU Yan, LIU Shuai, HU Jun, ZHANG Huikang, YAO Qingqiang, WANG Liming. Clinical study of three-dimensional printed navigation template assisted Ludloff osteotomy in treatment of moderate and severe hallux valgus. Chinese Journal of Reparative and Reconstructive Surgery, 2018, 32(7): 906-911. doi: 10.7507/1002-1892.201801163 Copy

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