The Correlation Of Knee Osteoarthritis And Knee Axis Angle

Objective:By the study on the relationship between knee axis angle and knee osteoarthritis, further clarify the correlation of knee osteoarthritis with the severity of knee joint axisMethods:In accordance with the standard were included in the study of 796 cases, X-ray in line with K/L grade 0 patients with 100 cases,237 patients with K/L grade I, grade II in 142 patients with,164 patients with grade Ⅲ, Ⅳ level in patients with 153 cases. The K/L 0 grade were regarded as theO stage group, Ⅰ-Ⅳ stage K/L is divided into one group, two group, three group, four group. Randomly selected from each group of 50 cases,25 cases of male and female. Included 250 cases. Koa shot ipsilateral lower extremity length and lateral X ray film shooting, the lower limb X-ray of total on-chip determined the limb axis were measured femoral and tibial angle, tibial plateau angle, femoral angle, tibial plateau angle, joint gap angle, femoral stem angle.Results:(1)Tibial plateau angle:normal group, there was no statistically significant difference between one to three groups (P> 0.05); the normal group, and one to three groups were four groups (P<0.05) were statistically different; (2) femoral tibial angle:normal group, one of the group, there was no statistically significant difference between the two groups (P> 0.05);Three groups with two groups (z=-2.031, P= 0.042<0.05) with significant difference compared four groups with three group (z=-7.571, P= 0.000<0.01) were significantly different;(3)Joint space angle:a group and the normal group (z=-8.632, P= 0.000<0.01), two groups with one group (z=-8.635, P= 0.000<0.01), three groups of two stage group (z =-8.637, P= 0.000 <0.01), comparing four groups with three groups (z=-8.627, P= 0.000 <0.01), there were significant differences between the groups; (4)femoral condyle dry angle: normal group, there was no statistically significant difference between one to four groups (P> 0.05);(5)Under femur angle:there was no significant difference between the normal group, one of the group, two groups (P> 0.05), three groups with two groups (z=-3.699, P= 0.000 <0.01), four groups compared with the three groups (z=-4.718, P= 0.000<0.01), two, three, were significant statistical difference between the four groups;(6)Tibia upper corner:normal group, there was no statistically significant difference between the first phase of the group (z =-0.496, P= 0.620> 0.05); two group stage with a group (z=-2.335, P= 0.020<0.05) with a statistically significant difference; three groups with two groups (z=-3.630, P= 0.000<0.01), more than three groups four groups (z=-4.102, P= 0.000<0.01) two, three, four were significant statistical difference between stage groups.(7)Other relevant indicators of comparison:the age groups studied, no significant difference in body weight (P> 0.05), comparable;(8)The Spearman rank correlation analysis femur tibial angle, joint clearance angle, tibial plateau angle, tibia upper corner with KOA K/L stage was positively correlated, and both have significant differences (P= 0.000<0.01); femoral condyle-shaft angle and KOA K/L staging was no significant difference (P= 0.756> 0.05); tibial plateau angle KOA K/L stage was negatively correlated with significant differences (P=0.000<0.01).Conclusion:1. the coronal axis angle joint gap angle,femoral angle, tibial angle, femoral and tibial angle and KOA was positively correlated with the severity of; 2. the sagittal axis angle in condyle of femur shaft angle had no correlation with KOA; tibial plateau angle and the severity of KOA was negatively related to.