The impact of tibial torsion measurements on gait analysis kinematics.

OBJECTIVE: To measure and compare tibial torsion values as assessed by goniometry and three-dimensional kinematics. In addition, the impact of each one of these measurements on kinematic and kinetic results for normal gait was determined. METHODS: Twenty-three healthy and fully ambulatory patients were assessed, 11 women and 12 men, from 20 to 40 years old. Data were collected at a laboratory for the three-dimensional analysis of movement with 10 cameras and two force plates. Tibial torsion measurements were obtained using goniometry and three-dimensional kinematics based on the Plug-in Gait model. Afterwards, both procedures were compared, and the impact of each result was assessed on the kinematic and kinetic modeling of the knee and ankle. RESULTS: Pearson's linear correlation coefficient (r=0,504) showed a moderate correlation between the three-dimensional kinematics and goniometry, and between the changes in the measurements. Regarding the processed kinematic and kinetic results for every torsion position, no significant differences were noticed among any of the studied variables (p>0.05). CONCLUSION: Although statistical correlation among tibial torsion angles by goniometry and three-dimensional kinematic were moderate, kinematic and kinetic analysis of the joints did not reveal any significant changes. Level of Evidence I, Diagnostic Studies - Investigating a Diagnostic Test.

The impact of tibial torsion measurements on gait analysis kinematics

Medir e comparar os valores de torção tibial avaliadospor goniometria e cinemática tridimensional. O impacto de cadamedida sobre os resultados cinemáticos e cinéticos para a marchanormal foi determinado. Métodos: Vinte e três pacientes saudáveise independentes para locomoção foram avaliados, 11 mulheres e12 homens, entre 20 a 40 anos de idade. Os dados foram coletadosno Laboratório de Análise do Movimento com 10 câmeras eduas plataformas de força. Medições da torção tibial foram obtidasutilizando a goniometria e a cinemática tridimensional oriunda domodelo de plug-in gait. Posteriormente, ambos os procedimentosforam comparados, e o impacto de cada resultado foi avaliado nacinemática e cinética do joelho e tornozelo. Resultados: o coeficientede correlação linear de Pearson (r = 0,504) mostrou umacorrelação moderada entre a cinemática tridimensional e goniometriae entre as mudanças nas medidas. Em relação aos resultadoscinemáticos e cinéticos processados para cada posiçãode torção, não foram observadas diferenças significativas entrenenhuma das variáveis estudadas (p ≥ 0,05). Conclusão: Apesarde correlação estatística entre os ângulos de torção da tíbia porgoniometria e cinemática tridimensional terem sido moderada, aanálise cinemática e cinética das articulações não revelou altera-ções significativas. Nível de Evidência I, Estudos Diagnósticos- Investigação de Um Exame Para Diagnóstico...

To measure and compare tibial torsion values as assessedby goniometry and three-dimensional kinematics. In addition,the impact of each one of these measurements on kinematic andkinetic results for normal gait was determined. Methods: Twenty--three healthy and fully ambulatory patients were assessed, 11women and 12 men, from 20 to 40 years old. Data were collectedat a laboratory for the three-dimensional analysis of movement with10 cameras and two force plates. Tibial torsion measurementswere obtained using goniometry and three-dimensional kinematicsbased on the Plug-in Gait model. Afterwards, both procedureswere compared, and the impact of each result was assessed onthe kinematic and kinetic modeling of the knee and ankle. Results:Pearson’s linear correlation coefficient (r=0,504) showed amoderate correlation between the three-dimensional kinematicsand goniometry, and between the changes in the measurements.Regarding the processed kinematic and kinetic results for everytorsion position, no significant differences were noticed amongany of the studied variables (p≥0.05). Conclusion: Although statisticalcorrelation among tibial torsion angles by goniometry andthree-dimensional kinematic were moderate, kinematic and kineticanalysis of the joints did not reveal any significant changes.Level of Evidence I, Diagnostic Studies - Investigating a Diagnostic Test...