髌股关节软骨损伤对Oxford单髁置换术的疗效研究

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Abstract Objective To investigate the effect of single iliac replacement on the postoperative outcome of patients with anterior medial osteoarthritis complicated with patellofemoral articular cartilage injury.Methods From March 2016 to August 2018，67 cases of single sacral replacement were performed in our department.All cases were treated with unilateral knee osteoarthritis.All cases were unilateral knee replacement，including 19 males and 48 females；aged 51~84 years with an average of (64.67±8.37)years，including 41 cases of left knee，26 cases of right knee；BMI range from 19.56 to 30.47 (mean：25.27±2.56).Duration of disease was 0.5~20.0 years (mean：5.08±4.83)years.Intraoperative patellofemoral articular cartilage injury was recorded by Outerbridge grading and grouped.The postoperative follow-up was evaluated by Oxford knee joint score (OKS score) and Lonner patellofemoral joint score to evaluate postoperative outcome and patellofemoral joint pain and functional improvement.The scores of preoperative and postoperative follow-up were statistically analyzed，and the difference was statistically significant，P＜0.05.Results All patients were followed up for 12~25 months with an average of(18.12±3.68)months.The OKS score was reduced from the preoperative average (44.42±4.86) to the postoperative average (21.46±4.64)，P＜0.01；Lonner pain The score increased from the preoperative average (29.91±2.48) points to the postoperative average (49.54±2.42) points，P＜0.01；the Lonner functional score increased from the preoperative average (23.17±1.40) points to the postoperative average (38.89±1.41 points)，P＜0.01；intraoperative observation revealed that 35 knees (52%) with medial patellofemoral articular cartilage injury，compared with no patellofemoral joint cartilage injury (32 knees)，postoperative patellofemoral joint pain and function were obtained Improvement，comparison of OKS score，Lonner pain and functional scores at 1，3，6 and 12 months after surgery had no significant difference.Conclusion The intraoperative medial patellofemoral articular cartilage injury does not affect the shortterm efficacy of Oxford monoterpene replacement.UKA can be used as a treatment for patients with anterior knee osteoarthritis with medial patellofemoral articular cartilage injury.

Key words： unicompartmental knee arthroplasty knee patellofemoral joint cartilage injury

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