Application of digital 3D printing navigation template in patelloplasty
Objective To analyze the application effect of digital 3D printing navigation template in patelloplasty.Methods A total of 89 patients with knee osteoarthritis(OA)who needed total knee arthroplasty(TKA)in the First Affiliated Hospital of Henan University from June 2022 to June 2023 were selected and divided into two groups according to the random number table method.The control group(44 cases)was treated with traditional patelloplasty,and the ob-servation group(45 cases)was treated with patelloplasty assisted by digital 3D printing navigation template.The degree of anterior knee pain[visual analogue scale(VAS)]were compared between the two groups at different time points(be-fore operation,1 month,3 months and 6 months after operation),as well as imaging indexes(patellar tilt angle,patel-lar displacement distance,patellar ligament ratio,tibial angle),patellar function(Feller patellar score),knee joint function[American knee society score(KSS),oxford University knee score(OKS)].Results There was a statistically significant difference in the degree of anterior knee pain between the two groups at different time,between groups,time ×group(P＜0.05);with the passage of time,the degree of anterior knee pain in the two groups showed a down-ward trend,and the VAS scores(3.59±1.14)points,(1.94±0.63)points,(0.63±0.11)points in the observation group were lower than those in the control group at 1 month,3 months,and 6 months after surgery(4.67±1.23)points,(2.57±0.85)points,(0.82±0.23)points(P＜0.05);Six months after surgery,the patellar tilt angle,pa-tellar displacement distance,patellar ligament ratio,and tibial angle in both groups decreased compared to preoperative values(P＜0.05),but there was no significant difference between the groups(P＞0.05);Six months after surgery,both groups showed improvement in patellar function and knee joint function.The Feller patellar score and KSS score in the observation group(20.37±1.29)points,(79.65±8.04)points were higher than those in the control group(18.53±1.46)points,(74.12±9.31)points,while the OKS score in the observation group(19.30±1.14)points was lower than that in the control group(21.67±1.85)points.There was a statistically significant difference in scores between the two groups(P＜0.05).Conclusion Patelloplasty assisted by digital 3D printing navigation template in the treatment of patients with knee OA can effectively reduce the degree of anterior knee pain,improve the function of patel-la and knee joint.
3D printingPatelloplastyTotal knee arthroplastyKnee joint functionKnee osteoarthritis
NETL
NSTL
万方数据
