More than 7 million Americans are living
with an artificial knee or hip, which may have significant future
implications in terms of the need for ongoing patient care, according to
new research. Two related studies also found a growing incidence of
adults younger than age 65 undergoing total knee replacement (TKR) and
total hip replacement (THR) surgeries, and a potential underutilisation
of these procedures in some segments of the population. Researchers
reviewed THR and TKR incidence rates, mortality rates and relative
mortality rates (the difference in survival between THR and TKR patients
and the general population), over a 40-year time period, to estimate
2010 prevalence rates according to age, sex and time since surgery.
Researchers found that approximately 0.8 per cent of Americans are
living with a hip replacement, and 1.5 per cent with a knee replacement.
More women are living with prosthetic hips and knees than men, they
found. The study also shows that prevalence of THR and TKR among adults
aged 50 and older is as high as 2.3 and 4.6 per cent, respectively.
The prevalence of THR rises to nearly 6 per cent by 80 years of age. The
prevalence of TKR rises to nearly 10 per cent by 80 years of age. The
states with the highest number of THR and TKR patients are California,
Florida and Texas; the two states with the lowest numbers are Alaska and
Hawaii, the study found. "This study shows that around 7 million
Americans have a hip or knee replacement," said Daniel Berry, professor
of orthopaedics at Mayo Clinic and the senior study author. "This large
number highlights how these operations have kept a substantial part of
our population mobile despite severe arthritis, something that wouldn't
have been possible before these technologies were available. "These
relatively high prevalence estimates also highlight the significant
ongoing need to care for all of the patients with total hip and knee
replacement," said Berry.
Congress leader Manishankar Aiyar attracted opposition BJP's ire today in Rajya Sabha when he said he was not interested in listening to speech of a BJP member on vote on account, prompting the Chair to adjourn the House amid uproar. During the Zero Hour, Deputy Chairman P J Kurien allowed Aiyar, who wanted to ask a question, to do so, which was opposed by BJP members. Kurien asked Aiyar whether he yielded to allow others to speak, to which he said he had no objection and he can ask his question later. As the House got ready to initiate discussion on Vote on Account, Kurien said, "Let us reduce the discussion to two hours from four hours," which was opposed by BJP members including Piyush Goyal who was given a chance to speak on Vote on Account. When it was agreed that discussion will take place as per schedule, Aiyar remarked he was not interested in listening to the speech by BJP member. "You had given me the chance to ask a question
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