Increase in Achilles Tendon Rupture Surgery in Japan: Results From a Nationwide Health Care Database.

11 Many studies have reported an increasing trend in the incidence of ATR because of a larger number of the older population participating in sports activities. 12 , 17 , 19 , 24 , 28 , 32 , 34 However, most of these reports were based on data collected from hospitals, 12 , 17 , 19 , 24 , 28 , 34 local governments, 32 and health care databases that are restricted to a limited population. 6 , 18 Therefore, their results cannot be generalized to a national level.

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