The Journal of arthroplasty
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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 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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Randomized Controlled Trial
Is intra-articular multimodal drug injection effective in pain management after total knee arthroplasty? A randomized, double-blinded, prospective study.
We performed a prospective, double-blinded, randomized, and controlled study to assess the clinical efficacy and safety of intra-articular multimodal drug injection after total knee arthroplasty. Two hundred eighty-six patients undergoing simultaneous bilateral total knee arthroplasty were randomized to receive the injection of multimodal drugs in one knee and normal saline solution as a placebo in the contralateral knee. ⋯ The range of motion and blood loss were also recorded. Intraoperative intra-articular injection of multimodal drugs into the knee did not improve patient pain and satisfaction, range of motion, or blood loss compared with the placebo control.