Nieder E, Engelbrecht E, Röder U, Strickle E
Chirurg. 1979 Apr;50(4):257-61.
In joint replacement surgery an exchange of endoprostheses is technically most difficult, time consuming, and extremely unpleasant for the patient. Removal of the implant without damaging the bone entails many problems. Experience has shown that, in addition to the normal operative technique, the ultrasonic method may be very helpful. Ultrasonic implements that melt thermoplastic implants facilitate the removal of those implants (e.g., polymethylmethacrylate, polyethylene), protect the tissue, and save time. This method is not an alternative to the normal operative technique, but an additional help.
在关节置换手术中，内假体的更换在技术上是最困难、最耗时的，而且对患者来说极其痛苦。在不损伤骨骼的情况下取出植入物会带来许多问题。经验表明，除了常规手术技术外，超声方法可能非常有用。能熔化热塑性植入物的超声器械有助于取出这些植入物（如聚甲基丙烯酸甲酯、聚乙烯），保护组织并节省时间。这种方法不是常规手术技术的替代方法，而是一种辅助手段。
