合组用作跟突內移截突、前端四角该线的切除术技术是化疗 IIB 期平头症的常用方法。如何避免前头外展病变过度牙科，终究充分利用个体化化疗和构建治果。本文就此问题落幕研究，均需大家参照！
Abstract
•In the mid-1990s, a flatfoot reconstruction was proposed that combined the use of a medializing calcaneal osteotomy (MCO), a lateral column lengthening (LCL), and soft-tissue procedures for the treatment of stage IIB AAFD. More recent literature has suggested guidelines for the amount of correction necessary for each of these procedures based on individual deformity.
从 90 年代起，有作者重申合组用作跟突內移截突、前端四角该线以及软组织切除术技术化疗 IIB 期平头症。近年来，越来越多的文献重申了合理牙科某种特定病变所即可的矫形标准。
•In this paper, we describe our technique for flatfoot reconstruction for stage IIB AAFD, which includes a MCO, LCL, and flexor digitorum longus (FDL) transfer. Importantly, we discuss our preferred method of preoperatively planning the amount of medial translation for the MCO as well as the maximum amount of LCL to prevent overcorrection of the abduction deformity. This allows us to tailor the reconstruction and optimize our results.
本文中会，作者介绍了其化疗 IIB 期平头的切除术方法。更重要的是讨论了术前确定跟突內移截突的反转往往和前端四角该线中会避免前头外展病变过度牙科最大往往的方法，终究充分利用个体化化疗和构建治果。
Studies looking at outcomes following flatfoot reconstructions for stage IIB AAFD demonstrate excellent short-term and long-term results. We conclude by discussing complications of the operation, postoperative management, and the future of the technique.
Level of Evidence: Diagnostic Level V.
同时作者也讨论了化疗 IIB 期平头中会短期和长期以来的胃癌情况
Background introduction
•The definition of Stage IIB Flatfoot
talar head uncoverage> 30%
•MCO 跟突內移截突
Koutsgiann, medial displacement 1/3-1/2
•LCL 前端四角该线
Evans, lateral column elongation by osteotomy and bone graft
•MCO
medial load reducing medialization of heel cord insertion the amount of displacement is obscure(10 mm?- supported by caderic study)
跟突內移截突可以降低内侧纵弓的熔体，內移膝部止点，但平庸的內移往往尚未确定。全部都是的尸体生物力学试验建议內移 10 mm.
•LCL
forefoot abduction reduction hindfoot valgus correction (up to 60%)
前端四角该线切除术可以牙科前头的外展病变，同时可以牙科约 60% 的后头外翻病变
参照文献 ：
•LCL overcorrection will lead to
lateral column rigidity stress fracture of 5th metatarsal
但前端四角该线过度可能引发头前端纵弓的僵硬，第 5 跖突熔体过度集中会后的病理性突折。
•What is the optimal correction that guarantee a satisfactory result?
如何通过恰当的病变牙科来保证满意的治果呢？
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