Virtual ACL Graft Orientation Compared to Native ACL
Author Information
Author(s): Okazaki Narihiro, Shino Konsei, Yokoi Hiroyuki, Ohori Tomoki
Primary Institution: Sports Orthopaedic Center Yukioka Hospital, Osaka, Japan
Hypothesis
BR-VACLG on the 3D CT shows the closer orientation to N-ACL on MRI.
Conclusion
The virtual triple bundle ACL graft via femoral tunnels behind the RR on 3D CT shows equivalent orientation to the native ACL on MRI in full extension.
Supporting Evidence
- The mean ACL-TP angles of N-ACL and BR-VACLG were similar, indicating equivalent orientation.
- Angles of AMM and PL in OR-VACLG were significantly lower than those of N-ACL.
- Statistical analysis showed no significant difference between N-ACL and BR-VACLG.
Takeaway
The study looked at how to place a new type of ACL graft in the knee, and found that it can be done in a way that looks just like the natural ACL.
Methodology
3D CT and MRI were used to analyze the femoral tunnel locations in 14 normal knees.
Potential Biases
Potential bias due to the small sample size and reliance on imaging techniques.
Limitations
The sample size is small, and some bony landmarks were not clearly depicted on CT.
Participant Demographics
14 normal left knees from healthy volunteers, 7 males and 7 females, mean age 27.8 ± 4.6 years.
Statistical Information
P-Value
p=0.012
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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