Correlation between Clinical and Radiological Findings in Individuals with Patellofemoral Pain Syndrome

AIM: Firstly, this study aimed to compare between different clinical findings commonly measured in physical therapy among healthy individuals and those with patellofemoral pain syndrome (PFPS). Secondly, this study aimed to investigate the correlation between several clinical findings in individuals with PFPS including Craig’s test, quadriceps (Q) Angle and Kujula test and the findings of computed tomography (CT). METHODS: Twenty-nine healthy individuals and thirty individuals diagnosed with PFPS were enrolled in the study after signing a consent form. The examiner took the medical history and fills the data collection sheet for each participant and they were examined for the following measures Craig’s test, Q-Angle and Kujula test. The participants in the experimental (PFPS) group were further investigated using CT. RESULTS: There was no significant difference between patients and controls in the mean age, weight, height and BMI. Significant decrease of Kujula in patient group compared to control group (p=0.0001) and there was significant increase of Q angle and Criage test in patients than controls (P= 0.026 and P= 0.017 respectively). There was significant positive correlation between Kujula and congruence angle and patellar weber (P < 0.01). Moreover, significant positive correlation was observed between Craig’s test and patellar tendon ratio. While, negative correlation was found between Q angle and patellar tendon ratio. CONCLUSIONS: Kujala Score, Q angle and Criage test were proved to be valid and sensitive to clinical changes in PFPS and have moderate to good concordance with CT parameters