The adverse reaction to metal debris, termed metallosis, may cause loosening/osteolysis of prostheses (Figure 2) secondary to metallic corrosion and release of metal wear debris [3, 4]. Background: The utilization of lymphocyte transformation testing (LTT) has increased for diagnosing metal sensitivity associated with total knee arthroplasty (TKA), but its validity for the diagnosis of TKA failure due to an immune reaction has not been established. Discoloration is often normal following knee replacement for several weeks or longer. I'm 8 months into TKR I was doing good swelling down decrease pain and walking pretty good all the sudden my knee felt not as strong and started hurting when I walk. Arthritis Rheum. To help determine the cause in your case I would recommend several things: Stiff Total Knee Continued pain is possible, and I am sure your surgeon will discuss this unpredictability with you. Bruises can cause skin discoloration, swelling, and tenderness, in addition to bleeding or contusions. Within hours of their surgery, my patients are often able to begin walking with the assistance of a physical therapist and a walker. Total Knee Replacement Surgery | The Process A low grade fever is quite common for a couple days after surgery. Running, jumping, and climbing should be avoided if you have a history of knee pain. Sometimes I just feel like I may not be progressing like I should. After knee replacement, there is a sensitivity of the nerves. I went back to my original surgeon and also sought 2 more opinions and all 3 doctors said that the metals analyses results are highly controversial with previous studies show differing results. If you were to see me I would examine your knee, test the stability and range of motion. I had TKR 7 weeks ago. No relief from PT or NSAIDs, Direct injection provided a few weeks of relief but not from the buttocks pain. It contains abundant references. Having a lot of trouble getting a good nights sleep. There has been some success rate variation of less than 40% and more than 100%. I was still having pain, a rash appeared at iv site, so I returned to the er today. But since surgery I have had severe pain on the side of my hip towards my Buttox - and havng an ultra sound for gluteal tendinitis. How is your range of motion? This should include complete blood count, erythrocyte sedimentation rate, and C-reactive protein. This entails packing the knee joint with high-dose antibiotic cement while you receive IV antibiotics. Additionally, your muscles will take some time to recover from surgery. 2016 Sep 7;98(17):1419-28. doi: 10.2106/JBJS.15.01109. That is not the same thing as avascular necrosis (or osteonecrosis) which can cause a degenerative knee as well. However, this is not the proper way to diagnose an infection. If the knee is swollen it should be aspirated and the fluid sent for gram stain and culture.