VA )>5° ?full range of motion (ROM) ? near-normal lateral and patellofemoral compartments,without ligamentous instability ?non-smoker ?some level of pain tolerance HTO 禁忌症( C ontraindication s) ?合并有膝关节外侧间室软骨退变,髌股关节软骨退变; ?屈膝挛缩>15 °; ?膝关节不稳; ?炎症性关节炎; Contraindications : ?older than 65 ?severe OA of the partment (Ahlback grade Ⅲ,or higher ) ?partmental OA ,patellofemoral OA ?ROM<120 °and flexion contracture >5 ° ?inflammatory arthritis ? large area of esposed bone on tibial and femoral articular surface (>15 *15mm ) ?heavy smokers HTO 与单髁置换术( UKA )适应症区分 HTO UKA 通过矫正力线从而减压膝关节内侧负荷通过膝关节内侧表面置换解决关节内侧磨损关节外手术关节内手术胫骨内翻越大,关节内磨损越小越好关节内磨损越大,关节外内翻越小越好韧带要求不高韧带功能要好 HTO 的成功需包含以下三大要素?1.适当的患者选择( right patient selection ) ?2.安全准确的手术技术( safe and accurate operation ) ?3.可靠的内固定( stable internal fixation )
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