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[1]孫衛(wèi)東,胡海威,溫建民,等.第1跖骨頸部微創(chuàng)截骨聯(lián)合分趾墊和“8”字繃帶外固定治療拇外翻的有限元分析[J].中醫(yī)正骨,2014,26(04):3-6.
　Sun Weidong*,Hu Haiwei,Wen Jianmin,et al.Finite element analysis of mini-invasive osteotomy in the first metatarsal neck combined with hallux valgus splint and figure-of-eight bandage fixation in the treatment of hallux valgus[J].The Journal of Traditional Chinese Orthopedics and Traumatology,2014,26(04):3-6.
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第1跖骨頸部微創(chuàng)截骨聯(lián)合分趾墊和“8”字繃帶外固定治療 拇外翻的有限元分析()
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《中醫(yī)正骨》[ISSN:1001-6015/CN:41-1162/R]

卷:
第26卷
期數(shù):
2014年04期
頁碼:
3-6
欄目:
基礎研究
出版日期:
2014-04-30

文章信息/Info

Title:
Finite element analysis of mini-invasive osteotomy in the first metatarsal neck combined with hallux valgus splint and figure-of-eight bandage fixation in the treatment of hallux valgus
作者:
孫衛(wèi)東1; 胡海威1; 溫建民1; 桑志成1; 吳壽長1; 成永忠1; 余志勇2; 王慶雷3
1.中國中醫(yī)科學院望京醫(yī)院,北京 100102; 2.湖北省襄陽市中醫(yī)醫(yī)院,湖北 襄陽 441000; 3.北京市老年病醫(yī)院,北京 100095
Author(s):
Sun Weidong*; Hu Haiwei; Wen Jianmin; Sang Zhicheng; Wu Shouchang; Cheng Yongzhong; Yu Zhiyong; Wang Qinglei.*Wangjing
Hospital of China Academy Of Chinese Medical Sciences,Beijing 100102,China
關鍵詞:
拇外翻 截骨術 有限元分析
Keywords:
Hallux valgus;  Osteotomy;  Finite element analysis
摘要:
目的:探討拇外翻患者采用第1跖骨頸部微創(chuàng)截骨聯(lián)合分趾墊和“8”字繃帶外固定治療后截骨端的穩(wěn)定性和截骨愈合的生物力學機制。方法:選取1位青年女性拇外翻患者,年齡28歲,身高168 cm,體質(zhì)量62 kg,右足拇外翻角24°,第1、2跖骨間角13°。利用其右足CT掃描所獲得的數(shù)據(jù)建立右足拇外翻骨骼有限元模型,并模擬第1跖骨頸部微創(chuàng)截骨聯(lián)合分趾墊和“8”字繃帶外固定術,測定截骨端的Von Mises應力和位移。結(jié)果:截骨端X軸位移為0.261 mm,Y軸位移為0.078 mm,Z軸位移為-0.167 mm,截骨端總位移為0.293 mm; 截骨端Von Mises應力為0.712 MPa,主要分布在截骨端的外側(cè)邊緣部位。結(jié)論:采用第1跖骨頸部微創(chuàng)截骨聯(lián)合分趾墊和“8”字繃帶外固定治療拇外翻,截骨端之間位移小、應力適中,能使截骨端以軟骨成骨的方式愈合。
Abstract:
To study the stability of the end of the cut bone and the biomechanical mechanism of cut bone healing in the patients with hallux valgus treated with mini-invasive osteotomy in the first metatarsal neck combined with hallux valgus splint and figure-of-eight bandage fixation.Methods:One female with hallux valgus(age 28 years,height 168 cm,body mass 62 kg)was selected.Her right hallux valgus angle was 24 degree and her intermetatarsal angle was 13 degree.The finite element model of right foot hallux valgus was built by using CT data,and the Von Mises stress and displacement were measured after simulating mini-invasive osteotomy in the first metatarsal neck combined with hallux valgus splint and figure-of-eight bandage fixation.Results:The displacement in X-axis was 0.261 mm,the displacement in Y-axis was 0.078 mm,the displacement in Z-axis was -0.167 mm,and the total displacement was 0.293 mm.The Von Mises stress was 0.712 Mpa and was mainly distributed at the lateral margin of the end of the cut bone.Conclusion:In the treatment of hallux valgus,the therapy of mini-invasive osteotomy in the first metatarsal neck combined with hallux valgus splint and figure-of-eight bandage fixation has such advantages as small displacement,moderate stress,furthermore,the end of the cut bone can be united by means of os cartilaginea.

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更新日期/Last Update: 1900-01-01