单词	jumper's knee
释义	jumper's knee noun : a painful condition of the knee caused by inflammation or small tears in the tendon of the patella that occurs especially in sports requiring strenuous jumping Word History First Known Use 1977, in the meaning defined above Medical Definition jumper's knee noun : patellar tendinitis Concerns about jumper's knee can prompt basketball players to change practice routines. Kelly Bothum, The News Journal (Wilmington, Delaware)
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