Jan.2015 left hip replacement with issues. Dec. 2015 , 2nd left hip replacement surgery. Aug. 2017 lower back surgery with hardware. Since the back surgery ,I have had 4 months of PT , Mon-Wed-Fri. My problem is with my strength and balance. My surgeon said recovery time would be 18-24 months, because of the time needed to recover from the three surgeries , and loss of muscle in my ankles and calfs. After exercise my feet feel like they are made of cement. If you have or are having the same problems, and found stability please share.