Does Measurement of the Anatomic Axis Consistently Predict Hip-Knee-Ankle Angle (HKA) for Knee Alignment Studies in Osteoarthritis? Analysis of long limb radiographs from the Multicenter Osteoarthritis (MOST) Study

摘要

ObjectiveResearchers commonly use the femoral shaft-tibial shaft angle (FS-TS) from knee radiographs to estimate the hip-knee-ankle angle (HKA) in studies examining risk factors for knee osteoarthritis (OA) incidence and progression. The objective of this study was to determine the relationship between HKA and FS-TS, depending on the method of calculating FS-TS and the direction and degree of knee deformity.