Purpose: To establish mean distance or identify intersection between tibial tunnels for posterior meniscal root repair in the setting of anterior cruciate ligament (ACL) or posterior cruciate ligament (PCL) reconstruction.
Methods: Twelve cadaver knees and 12 solid foam synthetic tibiae were used. ACL and PCL tunnels were drilled for single-bundle reconstruction, and both medial and lateral posterior root repair tunnels were drilled. Specimens underwent computed tomography scanning and shortest distances between tunnels in all planes were measured by 2 readers. Distances were compared between groups using a -test.
Results: In ACL reconstruction, the medial meniscal root tunnel was not significantly closer to the cruciate tunnel when drilled from either medial or lateral side ( = .333). The lateral meniscal root tunnel was significantly closer when drilled from medial compared to lateral side ( < .001). In PCL reconstruction, both medial ( = .037) and lateral ( = .028) meniscal root tunnels were significantly closer to the PCL tunnel when drilled from the contralateral side of the tibia.
Conclusion: This study demonstrates that posterior meniscal root repair tunnels are often placed within a few millimeters and can even intersect cruciate ligament reconstruction tunnels in the proximal tibia.
Clinical Relevance: The information in this study may assist surgeons in planning for cruciate ligament reconstruction with concomitant posterior meniscal root repair.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8365198 | PMC |
| http://dx.doi.org/10.1016/j.asmr.2021.03.008 | DOI Listing |
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