I learned today from my Physical Therapist that the psoas muscle really gets disrupted and stressed after having surgery with a lateral incision. I am still having numbness in the thigh and weak muscle (quad). I have read a number of postings on the Spine forum website that many patients undergoing this have had similar problems.
So hopefully with a few weeks of P.T. I will feel stronger. I guess if I had to choose a ALIF over a XLIF I would choose that later, going through the abdomen was a very long and painful recovery (surgery 2006)