Hey guys! It has been a while since I have last visited! I am excited and nervous to start off a new year with a revision left THR on Jan 22. Hoping for a good positive outcome post op. I have researched extensively about revision procedures and their success rates. Let's just say there is a lot of info out there (great and not so great) but I try not to analyze it too much for the sake of my own positivity! I would love to get some opinions and experiences from you folks about revision surgeries, metallosis, recovery times to help me get through this process as smoothly as possible. Alright, so to give you a bit of a context, here is a timeline of events related to to my left hip: Age 4: Diagnosed with avascular necrosis (AVN) Age 4-21: Pain with daily activities. Developed osteoarthritis closer to 18 that became unbearable by the time I was 21 Age 21: Got a left THR in July 2009. I was cane free by Sept 2009 (2 months post op) Age 22: Received a call from my surgeon's office that my hip implant had been recalled! (DePuy Acetabular Pinnacle system). Was put on a close supervision by my surgeon to monitor my X-Ray progression and everything looked great. No pain and no signs of complications. Age 29-30: Started experiencing complications, intermittent pain in my groin area, hip clicking/popping, some leg shortening, hip and thigh pain, feeling of instability. Xrays and bone scans checked out fine and showed no indications of implant loosening or bone loss. Blood serum test suggested high levels of cobalt, almost 2.5 times the normal amount, and chromium was on par. Also had an ultrasound that showed a small sac of fluid build up near my prosthesis. My surgeon (different from the initial one) said these are signs of metallosis and it would be best to get a revision hip replacement. He said only the liner and/or cup would need revising as the stem looks to be in excellent shape. I am now 3 weeks away from surgery but lately, after last speaking with my surgeon, I have been experiencing some numbness in my thigh and calf whenever I sit down, even if it's for brief periods of time. I am assuming this could be because of the pressure put on my nerves by the pseudotumor. Have you heard/experienced this before? My surgeon suggested I should be able to resume my routine activities 3-4 weeks post op. What are your thoughts, opinions, experiences with revision surgeries? Are a lot/most of these symptoms reversible post op? If you can share any helpful information, that would be greatly appreciated!