<s>[INST] Hello! well I had my acl and meniscus repaired 5 weeks ago and I slipped a while ago and banged my knee pretty good. It made a popping sound but its still very solid and I can walk fine. What should I do? I m calling my Dr. First thing in the morning but I m nervous...what do u think? [/INST] Hi, As post reconstruction of the ligament there are rare changes of re-rupture of the reconstructed ligament. But on a safer side clinical examination is advised as the reconstruction is just 5 weeks old. Popping sound are a part of the joint unlocking at times but as I mentioned without having a clinical examination we cannot determine the actual diagnosis. If there is not swelling, no pain, able you walk than it will not be a ligament re-injury. Continue the knee rehabilitation for some more days. A sports knee rehabilitation will be of good choice to get the maximum outcome score post surgery. Hope I have answered your query. Let me know if I can assist you further.  Regards, Jay Indravadan Patel, Physical Therapist or Physiotherapist </s>