Hi, As post surgery there might be weakness of the spinal muscles leading to nerve root entrapment and due to which there is weakness in the legs and abnormal motor control. Also you being diabetic will make the nerve functions to reduce as well. I will advice simple low intensity exercises which will help you to reduce the symptoms. Exercises include - breathing exercises, core stability exercise, spinal muscle strengthening exercises, hip muscle strengthening exercises, static hamstring, static quadriceps, straight leg raise, ankle toe movements. This should help the muscle strength and muscle physiology to regain its normal functions and help to have normalcy of life. Hope I have answered your query. Let me know if I can assist you further. Regards, Jay Indravadan Patel, Physical Therapist or Physiotherapist