Hi, As post the implant there will be change in the biomechanics of the gait which is normally considered as walking. Due to which there will be abnormal and unplanned stress & strain on the spinal muscles leading to changes in the normal anatomical position of the intervertebral disc. Due to which there is numbness, tingling , pain etc. The swelling will be due to lack of venous return as the muscles of the injured limb would have undergone weakness. I will advice to start some simple low intensity exercises like - breathing exercises, core stability exercise, spinal muscle strengthening exercises, hip muscle strengthening exercises, static Quadriceps, static hamstring, straight leg raise, ankle toe movements. This will help stabilize the spine and reduce the symptoms along with swelling. If required you can take guidance from the physiotherapist as well. Hope I have answered your query. Let me know if I can assist you further. Regards, Jay Indravadan Patel, Physical Therapist or Physiotherapist