Abstract: Objective To provide an effective the treatment method for hyperplasia and hypertrophy with clinical symptoms induced by injury of infrapatellar fat pad.Methods Atotal of 22 patients with infrapatellar fat pad syndrome were received in our hospital between the years 1996 and 2007,12 of them underwent surgery,10 of them underwent outpatient treatment.Results All patients received follow up 2～8 years after surgery.It disappeared that the symptoms and signs caused by hypertrophy of fat pad disappeared in the postoperative patients,while they aggravated in un-operative patients.Conclusion Once the hypertrophy and hyperplasia of the infrapatellar fat pad occurs,surgery is the best way to resect the whole fat pad,and it is hard to cure by the use of drugs.

Key words: knee joint, fat pad, hypertrophy