ABSTRACT
Anterior knee pain is one of the most common symptoms for referral reasons to orthopedic clinics specially knee clinic. This type of pain is one of the most common complaints in adolescents and adults, for various. The most common cause is patellar chondromalasia, but in many cases, no definitive cause is found through clinical examinations, paraclinic and imaging procedures. This type of pain has no detectable pathologic factor and is called anterior knee pain syndrome. The aim of this study was to access the relationship between the anterior knee pain and patellar index in patients who were referred to the orthopedic clinic. This case-control study was performed analytically on 44 patients that were selected randomly and were divided equally in two case and control groups. Patients in case group had anterior knee pain and patients in control group had come to the clinic for another reason. In all patients, lateral knee radiography was used to calculate patellar index. In this study, after analyzing the data, we found that there was no significant difference in age factor between the two groups. We found this syndrome to be common in female housekeepers, than in others group. Other notable findings showed there was no significant correlation between BMI and patellar index in females and males. Lastly, we found there is a significant difference regarding patellar index in case group. Presently, despite several studies regarding knee pains, many authors have no common agreement in this field. Many diseases were not detectable in the past and even their etiology was unknown, however, today we know their etiology and even their mechanism in detail. We now understand the pathologic factor of Anterior Knee Pain Syndrome and even its etiology for the future. In this study, we found the relationship between Patellat Index and Anterior Knee Pain Syndrome and a significant difference between the case and control groups