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首页> 外文期刊>Hip international: the journal of clinical and experimental research on hip pathology and therapy >The Vault-vacuum socket technique. A theoretical technique to improve intraoperative stability of uncemented acetabular cups.
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The Vault-vacuum socket technique. A theoretical technique to improve intraoperative stability of uncemented acetabular cups.

机译：避难所真空插座技术。一种提高未固定髋臼杯术中稳定性的理论技术。

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摘要

Many techniques have been advocated to achieve intra-operative stability of uncemented acetabular cups, including: a) an oversized cup b) an expansion cup (Spotorno CLS) c) the use of screws. Acetabular fractures have been reported following the use of oversized cups (1), and acetabular screws may cause neurovascular damage (2). Unfilled holes may provide a conduit for wear debris (3). On 8 May 1654 Otto von Guericke, Mayor of Magdeburg (Germany) placed two brass hemispheres and evacuated the air from between them so that two teams of eight horses each could not pull the two hemispheres apart, thus demonstrating the astonishing power of vacuum (4). The vacuum principle may therefore be used to acquire intraopera-tive stability in acetabular cups. On this route, the author proposes a technique that is illustrated as follows. A twothirds hemispherical area is milled with a small reamer into the ilium. The acetabular cup (without screw holes or with the holes closed by caps), matched to the reamed size, is impacted into the acetabulum. The milled cavity acts as a deformable rubber sucker, the air inside is naturally evacuated and the cup is kept in place due to a suction effect (Fig. 1 A). Since the milled area is located in the ilium, a direct weight bearing area, with each step it will dilate a little, enhancing the suction effect (Fig. 1B). The acetabular cup must be matched to the size of the prepared acetabulum to obtain a press-fit effect. The time that elapses between filling-in with new cancellous bone of the milled area and the consequent loss of the vacuum effect may be the time required to obtain the secondary stabilization of the cup with bone ingrowth.
机译：提倡许多技术来实现非骨水泥髋臼杯的术中稳定性，包括：a）超大杯b）扩张杯（Spotorno CLS）c）使用螺钉。使用超大杯后报道髋臼骨折（1），髋臼螺钉可能引起神经血管损伤（2）。未填充的孔可为磨损碎屑（3）提供导管。 1654年5月8日，马格德堡市长（德国）奥托·冯·格里克（Otto von Guericke）放置了两个黄铜半球并将它们之间的空气抽空，以使两队八匹马无法将两个半球拉开，从而证明了真空的惊人力量（4 ）。因此，真空原理可用于获得髋臼杯的术中稳定性。在这条路线上，作者提出了一种技术，如下所示。用小铰刀将三分之二的半球形区域铣入the骨。与扩孔的大小相匹配的髋臼杯（不带螺丝孔或不带帽盖的孔）被撞击到髋臼中。研磨后的腔体充当可变形的橡胶吸盘，内部的空气自然被抽空，并且由于吸力作用，杯子保持在适当的位置（图1 A）。由于铣削区域位于i骨上，因此是直接负重的区域，每一步都会稍微扩张一点，从而增强吸力效果（图1B）。髋臼杯必须与准备好的髋臼尺寸相匹配，以获得压配合效果​​。在用铣削区域的新松质骨填充与随之而来的真空作用丧失之间经过的时间可能是获得具有骨向内生长的杯子的二次稳定所需的时间。

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