Abstract
A magnetic resonance imaging study of 50 Chinese normal knees was conducted to determine the knee joint line position. The distances from the fibular head and the tibial tubercle to the joint line were measured, and each distance value was converted to a ratio relative to the anteroposterior tibial widths at the levels of the insertion of the patellar tendon and the apex of the fibular head. The distance to the joint line was 11.99 ± 1.20 mm from the fibular head and 20.48 ± 1.64 mm from the tibial tubercle. The fibular head and tibial tubercle are reliable landmarks. The distances and ratios can be used to determine the knee joint line position in revision surgery for the Chinese population.
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