Hi, I had surgery in Nov, 2023 for mandiblectomy on lower rt jaw. They took a piece of bone from my fibia to make a new jawbone. My problem is, after 18 mths, I am still having difficulty with walking gait & tightness in leg. Could scar tissue be affecting this? This should not be going on for this long as I have read patients regain mobility as so as 4-6 weeks. Please advise