Knee replacements Chennai by Dr.A.K.Venkatachalam patient’s testimonial after 14 years. An eighty five year old lady is doing very well at 14 years after bilateral knee replacements by Dr.A.K.Venkatachalam. Her son also vouches for the same. You can see more testimonials for knee replacement and stem cell treatment . Key hole surgery procedures like ACL reconstruction, menisectomy are also done by the surgeon. He has pioneered full bending or high flexion knee replacement, gender specific knee replacement, I Assist knee replacement, oxinium knee replacement in Chennai.