Study to Validate Clinical Tests for Diagnosing Infrapatellar Fat Pad Impingement Syndrome Compared to MRI in Adults with Anterior Knee Pain

What this Trial Is About

Researchers are investigating infrapatellar fat pad IFP impingement syndrome, a common cause of front knee pain, to improve its diagnosis. This observational study aims to assess the accuracy of a set of standardized clinical tests for diagnosing IFP impingement by comparing them to MRI results, which are currently the gold standard. The study also seeks to identify clinical and subjective features linked to IFP involvement confirmed by imaging. Participants aged 18 to 70 years with anterior knee pain of at least moderate intensity will complete an online questionnaire about their symptoms, pain patterns, and functional impact using validated scales. They will undergo a standardized clinical exam including skin temperature measurement, knee swelling assessment, passive knee motion testing, and five randomized clinical provocation tests targeting the infrapatellar fat pad. Each participant will also have a knee MRI within two weeks of the clinical exam, interpreted independently and blindly. Participant involvement includes a single session during a routine consultation where clinical tests and questionnaires are completed, followed by MRI imaging within 15 days. Data collected will be anonymized and analyzed to determine the diagnostic accuracy of the clinical tests compared to MRI findings. Researchers will also evaluate functional outcomes, pain intensity, and clinical characteristics associated with IFP impingement. The study plans to recruit 50 participants over six months, with results expected to improve routine diagnosis of anterior knee pain related to IFP.

Diagnostic Validity Ofclinical Tests for Infrapatellar Fat Pad Impingement Syndrome