Association between metabolic syndrome and knee structural change on MRI

Area of Science:

• Orthopedics
• Metabolic Health
• Radiology

Background:

• Metabolic syndrome (MetS) is a cluster of conditions that increase the risk of heart disease, stroke, and type 2 diabetes.
• Knee osteoarthritis (OA) is a common degenerative joint disease characterized by cartilage loss and bone marrow lesions (BMLs).

Purpose of the Study:

• To investigate the association between metabolic syndrome (MetS) and its components with knee cartilage volume loss and BML changes.
• To determine if MetS or its individual components predict structural knee damage over time.

Main Methods:

• Analysis of longitudinal data from 435 participants in a population-based cohort study.
• Measurement of blood pressure, glucose, triglycerides, and HDL. Definition of MetS using NCEP-ATP III criteria.
• Knee MRI for cartilage volume and BML assessment; X-ray for radiographic knee OA grading.

Main Results:

• Metabolic syndrome (MetS), central obesity, and low high-density lipoprotein (HDL) were independently associated with medial tibial cartilage volume loss.
• MetS, hypertriglyceridemia, and low HDL were linked to an increased risk of BML size increase in the medial compartment.
• The number of MetS components correlated with greater cartilage volume loss and BML size increase.

Conclusions:

• Metabolic syndrome (MetS) and low high-density lipoprotein (HDL) are significant risk factors for medial knee compartment structural changes, including cartilage volume loss and BML development.
• These findings suggest that interventions targeting MetS and low HDL may be beneficial in preventing or slowing the progression of knee structural damage.