翻修全膝關節置換術

Revision Total Knee Replacement Surgery

有時植入物會鬆動。
目前尚不清楚什麼原因可能導致植入物鬆動。
骨科醫生認為，重複的高衝擊力活動、高體重和塑膠襯墊的磨損可能會導致膝關節置換術磨損更快，從而導致植入物鬆動。
在年輕時接受膝關節置換術的患者膝關節置換術鬆動的風險很高。

當塑膠襯墊磨損時產生的微小顆粒受到身體免疫系統的攻擊時，就會發生鬆動。
然後，免疫系統會破壞植入物周圍的健康骨骼。
這種骨質破壞被稱為「骨質溶解」。。
當發生骨質溶解時，植入物可能會開始發生擋風玻璃雨刮器運動並鬆動，從而引起疼痛。

When bacteria enter your knee, it can become attached to the surface of your implant. This infection can begin in the hospital at the time of your initial operation or can begin years later. The risk of an infection after a knee replacement is 0.5% – which is very small. Unfortunately, when it happens, it is a major complication for patients. The risk for infection can be higher in patients with underlying medical conditions such as diabetes, or patients who smoke. Infection is considered whenever patients have a complication with their knee replacement, such as pain, instability, or drainage. Possible treatment options for an infected total knee include removal of the implant, revision, debridement, or just antibiotic suppression. Often, multiple surgeries are required to cure your infected total knee. You should have a discussion with Dr. Morton regarding the long process to treat an infected knee replacement.

Read more about infected knee replacements.

Sometimes patients feel their knee is unstable. This can begin when the knee is put in initially (such as improper surgical technique) or over time as the ligaments begin to stretch out. Patients with an unstable knee replacement will feel as though their knee “gives way”, and often experience recurrent swelling. Robotic-assisted joint replacements are an excellent way to prevent technical errors that can occur, providing the perfect balance of your knee replacement at the time of operation.

有時，整個膝關節周圍會形成過多的疤痕組織。
當患者在手術后失去運動範圍時，這通常會讓他們感到沮喪。
有時，這種僵硬會妨礙進行日常活動的能力。
如果及早治療僵硬，可以在您接受一些麻醉時進行簡單的操作。
有時，僵硬是很晚才發現的。
當僵硬嚴重且膝蓋功能不佳時，這被稱為「關節纖維化」。。
關節纖維化是關節的嚴重瘢痕形成。
關節纖維化的治療可能需要進行翻修手術。
Morton 博士是關節纖維化手術方面的專家，曾治療過許多膝蓋嚴重攣縮的患者。

骨折（骨折）通常發生在跌倒或嚴重骨質溶解后。
Morton 博士將通過調查剩餘的骨頭、植入物的鬆動和斷裂的位置來評估膝蓋周圍的斷裂。
大多數骨折需要手術矯正。
在某些情況下，只需要一段時間的保護性負重，無需手術。

翻修全膝關節需要大量的準備工作。
Morton 醫生將需要您以前的病歷、X 光片和其他影像學檢查。
有時在手術前，他會要求進行更高級的成像，例如可能需要 CT 或 MRI。
您幾乎總是需要實驗室檢查來確定您的膝蓋是否存在感染。