Study on application value of kinematic alignment technique in patients undergoing total knee arthroplasty
Objective To explore the clinical effect of kinematic alignment technique in patients undergoing total knee arthroplasty.Methods 106 patients who underwent total knee arthroplasty were selected as the study subjects.They were randomly divided into a control group(53 cases)and an observation group(53 cases).The control group was treated with mechanical alignment technique during surgery,while the observation group was treated with kinematic alignment technique during surgery.The postoperative pain level,imaging indicators,knee joint recovery,active knee flexion angle,and complications of the two groups were compared.Results At 3 d and 6 months after surgery,there was no significant difference in visual analogue scale(VAS)scores between the two groups(P>0.05).At 6 months after surgery,there were no significant differences in patellar inclination angle,Blackburne-Peel index and patellofemoral index between the two groups(P>0.05).At 6 months after surgery,the observation group had smaller lateral patellofemoral angle of(9.71±4.36)° than(11.86±4.15)° in the control group,and the difference was statistically significant(P<0.05).There was no statistically significant difference between the two groups of patients in terms of the first postoperative ambulation time,the time of the first postoperative straight leg raise>30°,and the Oxford knee score(OKS)score at 6 months after surgery(P>0.05).There was no statistically significant difference in the active knee flexion angle between the two groups of patients at 3 d and 6 months after surgery(P>0.05).There was no statistically significant difference in the incidence of postoperative complications between the two groups(χ2=0,P=1>0.05).Conclusion The use of kinematic alignment technique in total knee arthroplasty can reduce lateral patellofemoral tilt to a certain extent,and ensure good postoperative joint recovery and range of motion without significant complications.It demonstrates reliable application value in terms of surgical difficulty and risk.
Total knee arthroplastyKinematic alignment techniqueMechanical alignment techniqueKnee joint functionKnee flexion
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