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X-rays of the knee were obtained and analyzed at 1, 3, 6, and 12 months after surgery. CT scans were obtained and analyzed at 1, 6, and 12 months after surgery. Results were assessed by three surgeons independently. The Rasmussen radiology scoring standard was used to evaluate the quality of surgical reduction. The assessment includes consideration of whether the joint surface is compressed, whether the tibial plateau has widened, and whether there is a knee varus or valgus deformity; a score of 18 is excellent, 12–17 is good, 6–11 is fair, and < 6 is poor. Knee joint function was evaluated using the Rasmussen functional score. The assessment includes subjective complaints like pain and walking capacity, as well as clinical signs like extension, total range of motion, stability; a score of 27–30 is excellent, 20–26 is good, 10–19 is fair, and < 10 is poor [17]. No patient was lost to follow-up.

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