Abstract
Case We report a rare case of prefemoral fat pad impingement syndrome that was caused by a hyperplasia of the normal suprapatellar fat pad. Pain and catching were observed in the proximal-lateral patellofemoral joint, and MRI imaging confirmed a hyperplasic mass in the same area. Although conservative treatment showed no signs of improvement, symptoms improved after an arthroscopic excision of the mass. Conclusion Prefemoral fat pad impingement syndrome is related to patellar motion and should be considered as one of the underlying causes of anterior knee pain (AKP). Surgeons should recognize that a small hyperplasia composed of normal adipose tissue can cause AKP.
Highlights
Prefemoral fat pad impingement syndrome (PFIS) is considered as one of the underlying causes of anterior knee pain (AKP) [1,2,3,4,5]
We report a case of PFIS caused by normal adipose tissue, located superolaterally to the patellofemoral (PF) joint and within the suprapatellar pouch, which was excised under arthroscopic examination
Along with the quadriceps and infrapatellar (Hoffa’s fat pad) fat pads, the prefemoral fat pad is one of the three major anterior knee fat pads, and the structure consists of fat cells that are found in the suprapatellar bursa, located superior to the femoral trochlea and the anterior cortex of the distal femoral metaphysis [1,2,3,4]
Summary
Prefemoral fat pad impingement syndrome (PFIS) is considered as one of the underlying causes of anterior knee pain (AKP) [1,2,3,4,5]. PFIS is generally induced by tumorous lesions that occur at the same site, such as lipomas and lipoma arborescens, causing the fatty tissues of the anterodistal femur to impinge. There are very few reports on PFIS induced by normal adipose tissue. We report a case of PFIS caused by normal adipose tissue, located superolaterally to the patellofemoral (PF) joint and within the suprapatellar pouch, which was excised under arthroscopic examination
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
