Background In childhood supracondylar fractures of the humerus, fixation with percutaneous Kirschner wire is the standard treatment. In the case of irreducible-unstable fractures, these can be defined as fractures in which reduction is not well-achieved or in which fixation cannot be achieved with the K-wire. Intraoperative management of these types of fractures may be difficult. Treatment with a methyl methacrylate fixator consisting of K-wire and methyl methacrylate cement, as defined by the senior author of the article, may be a good option for Gartland type IV supracondylar humeral fractures where the fracture is unstable in flexion and extension due to complete periosteal tearing. Materials and Methods The short-term and mid-term results of 27 patients between the ages of 4-12 with Gartland type IV supracondylar fracture of the humerus treated with methyl methacrylate fixation were reviewed. The patients were scored in terms of function and cosmetic satisfaction. Results A total of 19 of the 27 patients treated with the methyl methacrylate fixator had full elbow motion function and rated the outcome of the treatment as excellent, which was judged by orthopedic surgeons on the basis of Flynn's criteria. Six patients had nearly full elbow motion and evaluated their recovery outcome as good. Two patients reported nearly full range of motion (ROM) and evaluated the method as moderate in terms of treatment. Discussion Treatment with the methyl methacrylate fixation method is an inexpensive method that allows early joint mobilization, provides strong biomechanical stability, ensures good outcomes, and should be considered in the treatment of irreducible and unstable supracondylar fractures of the humerus.

中文翻译：

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甲基丙烯酸甲酯固定器治疗gartland IV型髁上骨折可靠吗？

背景 对于儿童肱骨髁上骨折，经皮克氏针固定是标准治疗方法。对于不可复位的不稳定骨折，可以将其定义为复位效果不佳或克氏针无法固定的骨折。这些类型的骨折的术中处理可能很困难。正如本文资深作者所定义，使用由克氏针和甲基丙烯酸甲酯水泥组成的甲基丙烯酸甲酯固定器治疗可能是 Gartland IV 型肱骨髁上骨折的一个不错的选择，这种骨折由于完全骨折而在屈曲和伸展方面不稳定。骨膜撕裂。材料与方法 回顾性分析27例4~12岁Gartland IV型肱骨髁上骨折患者采用甲基丙烯酸甲酯内固定治疗的近期和中期疗效。对患者的功能和美容满意度进行评分。结果 27例接受甲基丙烯酸甲酯固定器治疗的患者中，19例肘关节运动功能完全，骨科医生根据Flynn标准评定治疗效果为优。六名患者的肘部几乎完全活动，并且评估他们的恢复结果良好。两名患者报告几乎可以进行全范围运动（ROM），并评价该方法在治疗方面为中等。讨论 甲基丙烯酸甲酯固定法治疗是一种廉价的方法，可以使关节早期活动，具有较强的生物力学稳定性，可确保良好的治疗效果，应考虑用于治疗难复性和不稳定的肱骨髁上骨折。