The advantages of slightly decreased post surgical pain and increased short term recovery do not justify the possible decrease of longevity of these implants. Further study is required.
Minimally invasive knee surgery avoids excessive stress to the extensor mechanism; again, if studies can show that alignment and ligament balancing can be reproduced with minimally invasive techniques, then consideration should be given to their implementation. Computer guided surgery does hold promise for further refining and replicating the surgical techniques that are important in the long term survival of knee replacements.
Regular exercise, sometimes to excess, has become a quality of life issue for many baby boomers to prevent everything from Alzheimer's to diabetes. To continue to keep up with this demand, further advances in medication, implant design and surgical technique - particularly minimally invasive surgery - promises continued improved care of arthritis patients of this generation and the next.