February 19, 2021
1 min read
Published results showed higher BMI may be associated with increased cartilage wear in the patellofemoral compartment compared with the tibiofemoral compartment.
Using data from the Osteoarthritis Initiative, Jerry Y. Du, MD, and colleagues stratified 2,006 patients with left or right knee MRIs into four BMI cohorts. Researchers assessed MRI of the knee with the MRI osteoarthritis knee score, and compared patellofemoral, medial and lateral compartment cartilage scores among BMI cohorts, controlling for confounders using linear regression models.
Results showed an independent association between increasing BMI with increasing grades of patellofemoral wear for both right and left knees in the lateral patella facet, medial femoral trochlea and lateral femoral trochlea. Researchers found an association between increasing BMI with medial compartment wear in the posterior femoral area and lateral compartment wear in the central tibial area of the right knee. Increasing BMI was also associated with medial compartment wear in the central femoral area of the left knee, according to results.
Jerry Y. Du
“Obesity may preferentially wear out the patellofemoral joint, which has unique implications in patients’ pain and functional abilities,” Du told Healio Orthopedics. “Surgeons should consider altering treatment strategies, such as directed physical therapy and weight loss programs, that avoid patellofemoral stress in obese patients in order to avoid potentially exacerbating pain and accelerating cartilage wear in the patellofemoral joint.”