[Individual difference of coronal bowing of femur and its influence on the lower limbs alignment after the total knee arthroplasty].
Zhonghua Yi Xue Za Zhi
; 97(13): 1006-1010, 2017 Apr 04.
Article
em Zh
| MEDLINE
| ID: mdl-28395419
ABSTRACT
Objective:
To disclose the correlation between the femur bowing angle(FBA) and vulgas correction angle(VCA), anlysys its influence on the total knee arthroplasty and the lower limbs alignment.Methods:
From Janurary 2013 to December 2015, 699 patients who had received total knee arthroplasty(TKA)were collected in the Department of Joint Surgery, China-Japan Friendship. The FBA, VCA, offset of the proximal femur, the lengh of the femur, the neck shaft angle of the femur of the eligible cases from the long leg X-ray were measured.All the data were analysed for the followingsteps:
the FBA's mean value and characteristics of distributation of all the cases; the VCA's mean value and characteristics of distributation of all the cases; correlations between the VCA and the other parameters; divide all the cases into four groups based on the value of FBA group A(FBA<-3°, 29), group B(-3°≤FBA≤0°, 255), group C(0°Results:
The mean Value of the FBA is -7.1--12.1(1.4±2.4)°; the mean Value of the VCA is 2.5--11.9(6.5±1.3)°. The correlation index between VCA and FBA, the neck shaft angle of the femur , offset of the hip joint, the lengh of the femur is 0.72, -0.26, 0.45 and -0.08, perspectively. The theoretical ideal alignment percentage of the 5 degree-valgus-bone cut and 6 degree-valgus-bone cut in every group is group A 89.7% and 66.5%; group B 93.7% and 95.7%; group C 71.9% and 94.6%; group D 21.2% and 50.8%, respectively.Conclusion:
The cases whose femur bowing angles are outliers are common in daily medical practice, so the vulgas correction angles need be ajusted for its significant correlation with FBA. 5 degree-valgus-bone cut or 6 degree-valgus-bone cut could not get the ideal alignment some times.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Artroplastia do Joelho
/
Fêmur
Limite:
Humans
País como assunto:
Asia
Idioma:
Zh
Ano de publicação:
2017
Tipo de documento:
Article