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首页> 外文期刊>Journal of Materials Engineering and Performance >Design and Clinical Application of Proximal Humerus Memory Connector
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Design and Clinical Application of Proximal Humerus Memory Connector

机译：肱骨近端记忆连接器的设计与临床应用

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摘要

Treatment for comminuted proximal humerus fractures and nonunions are a substantial challenge for orthopedic surgeons. Plate and screw fixation does not provide enough stability to allow patients to begin functional exercises early after surgery. Using shape memory material nickel titanium alloy, we designed a new device for treating severe comminuted proximal humerus fractures that accommodates for the anatomical features of the proximal humerus. Twenty-two cases of comminuted fracture, malunion, and nonunion of the proximal humerus were treated with the proximal humeral memory connector (PHMC). No external fixation was needed after the operation and patients began active shoulder exercises an average of 8 days after the operation. Follow-up evaluation (mean 18.5 months) revealed that bone healing with lamellar bone formation occurred an average of 3.6 months after surgery for the fracture cases and 4.5 months after surgery for the nonunion cases. Average shoulder function was 88.5 according to the criteria of Michael Reese. PHMC is an effective new device to treat comminuted proximal humerus fractures and nonunions. The use of this device may reduce the need for shoulder joint arthroplasty.
机译：对于肱骨近端粉碎性骨折和骨不连的治疗，对于整形外科医生来说是一个巨大的挑战。钢板和螺钉固定不能提供足够的稳定性，无法让患者在术后早期开始功能锻炼。我们使用形状记忆材料镍钛合金，设计了一种用于治疗严重的肱骨近端粉碎性骨折的新装置，该装置可适应肱骨近端的解剖特征。使用肱骨近端记忆连接器（PHMC）治疗22例粉碎性骨折，肱骨近端畸形和不愈合。手术后不需要外固定，患者平均在手术后8天开始积极的肩部锻炼。随访评估（平均18.5个月）显示，骨折病例在手术后平均3.6个月发生手术，带骨层形成的骨愈合平均发生，对于不愈合病例平均在手术后4.5个月发生。根据迈克尔·里斯（Michael Reese）的标准，平均肩部功能为88.5。 PHMC是治疗粉碎性肱骨近端骨折和骨不连的有效新设备。使用此设备可以减少对肩关节置换术的需要。

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