Differences in Posterior Tibial Slope by Sex and Ethnicity
Author Information
Author(s): Hohmann Erik, Nel Adri, Zyl Reinette van, Natalie Natalie, Mogale Nkhensani
Primary Institution: University of Pretoria, Pretoria, South Africa
Hypothesis
There would be significant differences between ethnic population groups but no sex differences within an ethnic population group.
Conclusion
This study could not establish differences in posterior tibial slope angles between males and females and ethnicity.
Supporting Evidence
- Significant differences between the three different angles were observed.
- PTC angles were smaller when compared to PTAA and ATC angles.
- Ethnicity did not show significant differences in posterior tibial slope.
- Sex differences in posterior tibial slope were not significant.
- All data were normally distributed and showed homogeneity.
Takeaway
The study looked at how the angle of a part of the knee varies between different groups of people, but found no big differences based on gender or ethnicity.
Methodology
The study measured angles from 480 lateral knee radiographs using ImageJ software and analyzed differences using one-way ANOVA.
Limitations
The study used 2D radiographs which may not accurately reflect the true 3D tibial slope, and there may have been over- or under-representation of ethnic groups.
Participant Demographics
Black and white males and females aged 18 to 80.
Statistical Information
P-Value
0.0001
Confidence Interval
95% confidence intervals showed no overlap between the pairs.
Statistical Significance
p=0.0001
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website