Impact of Tibial Slope on Knee Stability After Combined PCL and PLC Reconstruction
Author Information
Author(s): Fahlbusch H., Weiß S., Korthaus A., Akoto R., Krause M., Frosch K. H.
Primary Institution: University Medical Center Hamburg-Eppendorf
Hypothesis
Does an elevated tibial slope correspond to a greater reduction in posterior tibial translation following combined PLC and PCL reconstruction?
Conclusion
A tibial slope of less than 8° is associated with higher rates of posterior tibial translation in combined PLC and PCL reconstruction.
Supporting Evidence
- Group A (TS < 8°) had a significantly higher SSD of PTT compared to Group B (TS ≥ 8°).
- A negative correlation was observed between SSD of PTT and both TS and the Lysholm Score.
- Patients with a postoperative SSD of PTT less than 4 mm had a higher Lysholm Score.
Takeaway
If the angle of the tibia is too flat, it can lead to more knee instability after surgery. Keeping the angle steeper helps the knee stay stable.
Methodology
This study analyzed 47 patients in a retrospective cohort study who underwent PCL and anatomical PLC reconstruction, measuring tibial slope and assessing posterior tibial translation.
Limitations
The study is limited by the small sample size and variability in time between injury and surgery.
Participant Demographics
Average age was 37 years, with 11 females and 36 males.
Statistical Information
P-Value
p<0.01
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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