The Barefoot Runners Society: Barefoot Running after Knee Replacement, http://www.thebarefootrunners.org/threads/barefoot-running-after-a-knee-replacement.4003/
American Academy of Orthopedic Surgeons: TKA in Younger Patients, http://www.aaos.org/news/aaosnow/apr12/clinical17.asp
American Journal of Preventative Medicine: Long distance Running and Knee Osteoarthritis, http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2556152/
Rheumatology: Outcomes of Total Knee Replacement, http://rheumatology.oxfordjournals.org/content/44/8/1032.long