Article

The purpose of study was to analyze correlations between bony
torsions measured by Staheli's rotation profile, computed tomography (CT)
torsional study, and gait analysis in patients with cerebral palsy (CP).
METHOD: The study group comprised of 26 children with CP (spastic
diplegia, Gross Motor Function Classification System (GMFCS) 1-2, mean age 12.6
years) with torsional deformities. All subjects were assessed by examining: 1)
rotational profile [internal rotation (IR) and external rotation (ER)], 2) CT
torsional profile [femoral anteversion (FAV) and tibial torsion (TT)], and 3)
gait analysis [mean hip rotation (HR) and mean knee rotation (KR)]. Statistical
analysis was performed using the Pearson correlation test. RESULTS: In the femur,
there was good correlation between FAV and Staheli's rotational profile of IR and
ER (Pearson correlation coefficient (PC=0.69, 0.52, p<0.05)). ER correlated very
strongly with mean HR during gait (PC=0.8, p<0.05). There was, however, poor
correlation between HR and IR (p>0.05), and between HR and FAV (p>0.05). In the
tibia, mean KR correlated well with thigh-foot angle (TFA) (PC=0.72) and CT tibia
torsion (TT) (PC=0.62). TT also correlated with TFA (PC=0.62). CONCLUSION: Gait
analysis and Staheli's rotational profile reflect both static and dynamic factors
of gait abnormalities. However, CT study reflect static factor primarily. Dynamic
factors tend to influence the measurements of the femoral torsion only due to
large rotational arc of hip joint. In surgical planning, it must be considered
that HR sometimes does not correlate with CT anteversion angle. Similarly, it
must also be considered that KR correlates well with TFA and CT TT angle.
CI - Copyright (c) 2017. Published by Elsevier B.V
- Tomographie

Langue : ANGLAIS