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A study presented at the Knee Society Specialty Day highlighted aseptic loosening as the cause of failure in half of unicompartmental knee arthroplasties and that they are more likely to fail due to pain than total knees.
Obesity often increases complication rates. In three separate studies, Michael Mont, M.D. and colleagues studied how obesity, morbid obesity and super obesity influence total knee arthroplasty (TKA) outcomes. In the first study, Kimona Issa, M.D. Mont and colleagues found that obese patients had excellent clinical outcomes at early to midterm follow-up of primary TKA.
A prospective, randomized study of young patients who underwent primary ACL reconstruction showed a 26.5% failure rate with fresh frozen tibialis posterior tendon allograft and a 8.5% failure rate with hamstring autograft at a 10 year minimum follow-up.
A delay in surgery of greater than three months was the only predictive factor of the need for an additional procedure after ACL reconstruction in younger patients, according to Justin T. Newman, M.D. from the University of Colorado.