Department of Physical Medicine & Rehabilitation, Mayo Clinic College of Medicine, Rochester, MN 55905, USA.
PM R. 2013 Mar;5(3):242-4. doi: 10.1016/j.pmrj.2013.01.007. Epub 2013 Feb 9.
Calcific rotator cuff tendinopathy caused by symptomatic calcium hydroxyapatite crystal deposition is a well-established cause of shoulder pain. In refractory or acutely symptomatic cases, sonographically guided percutaneous lavage and aspiration can significantly reduce pain in approximately 60%-92% of cases. Although the complication rate of sonographically guided percutaneous lavage and aspiration is apparently low, needle clogging attributable to impacted calcific debris has been described by several authors and in our experience can occur in daily practice. Traditionally, an inability to relieve the obstruction via needle repositioning or increased syringe plunger pressure has required needle removal and replacement. In this article, we outline a simple technique that can be used to restore patency of the obstructed lavage needle without necessitating needle removal and replacement.
由症状性钙羟磷灰石晶体沉积引起的钙化肩袖肌腱病是导致肩部疼痛的一个明确原因。在难治性或急性症状性病例中，超声引导下经皮冲洗和抽吸可使约 60%-92%的病例的疼痛显著减轻。尽管超声引导下经皮冲洗和抽吸的并发症发生率明显较低，但已有多位作者描述了由于钙化碎片的冲击而导致的针头堵塞，而且根据我们的经验，这种情况在日常实践中也可能发生。传统上，如果无法通过重新定位针头或增加注射器柱塞压力来缓解阻塞，则需要取出和更换针头。在本文中，我们概述了一种简单的技术，可用于在无需取出和更换针头的情况下恢复阻塞的冲洗针头的通畅性。
