ABSTRACT
Purpose To analyze the gait of patients following reconstruction of posterior cruciate ligament(PCL) and posterolateral corner(PLC).Methods Between March 2007 and April 2008,16 patients with combined PCL and PLC injuries-deficient knee underwent the reconstruction with allograft.Dial test were performed before surgery,and gait analysis and dial test were assessed 1 year after reconstruction.Sixteen healthy volunteers were used as controls.Results There are no differences in the time-distance factors and kinematics between patients and controls(P>0.05).The torque of knee extension revealed significant difference between patients and controls(P<0.01).Mean abtorsion angle of the patients increased 16.5°±6.2° before surgery;whereas the angle increased-4.4°±7.8° 1 year after surgery(P<0.01).The maximal mean abtorsion angnlation from gait analysis was 14.1°±15.7° and from dial test was 29.7°±1 5.2°,respectively.There was a strong linear correlation(r=0.9671,P<0.05)between the outcomes from dial test and gait analysis.Conclusion After reconstruction of the PCL and PLC,the gait of patients became almost normal 1 year after operation,except the torque of knee extension.
ABSTRACT
Objective To investigate the changes in kinetic parameters of the major joints of the lower extremity during walking in patients with knee osteoarthritis(KOA),and explore its mechanism for clinical treatment.Methods Sixty patients with KOA in tibia-femoral joint and 30 healthy persons as control group(CON) were recruited.Patients were divided into less severe KOA group(LKOA)and more severe KOA group(MKOA)in accordance to K/L radiological grade,then the kinetic data by 3D-gait analysis system were collect.Results LKOA had more knee maximal abduction movement than MKOA and CON after heel strike(P<0.001);the knee first peak adduction movement of MKOA was significantly greater than LKOA(P<0.05)and CON(P<0.001)during medial stance phase;the knee second peak adduction movement of LKOA was significantly less than CON(P<0.05);the hip first peak adduction movement of MKOA was significantly greater than CON(P<0.05).Conclusion The more severe level of KOA in tibia-femoral joint,the more load on medial compartment of patient's knees was seen,comparing with CON,patients with KOA have greater hip abduction movement and more severe patients have less hip adduction movement.