• CT-based analysis of bilateral muscle volume accurately reflects muscle strength in patients with KOA.|
• CT-based analysis of bilateral muscle volume enables exclusion of parameters such as age and BMI, which affect muscle mass and strength.
• The analyzed muscle comprises several different muscles, including the rectus femoris, biceps femoris, and adductor longus.|
• This study was a cross-sectional study.
• Patients with bilateral knee osteoarthritis were included among the participants.