Therapeutic Effect Study Of Patellofemoral Articular Cartilage Injury On Oxford Unicondylar Knee Arthroplasty

Objective:To investigate the effect of anterior medialaste oarthritis combined with patellofemoral articular cartilage injury on early curative effect after unicompartmental knee arthroplasty.Methods:From March 2016 to November 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.48 females;aged 51~84 years,mean age(64.67±8.37)years;41 cases of left knee,26 cases of right knee;BMI19.56-30.47,mean(25.27±2.56);duration of disease 0.5~20 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 at 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,P values were(0.075,0.345,0.239,0.227,0.409;0.203,0.2307,0.208,0.396;0.135,0.245,0073,0.318),P values were all > 0.05,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.