AANA19 Knee Access Pass-Does Knee Extension Reduce Type II Tibial Spine Fractures_ An MRI Evaluation in Extension versus Resting Flexion-Dr. Stephen K. Aoki, M.D.

Does Knee Extension Reduce Type II Tibial Spine Fractures_ An MRI Evaluation in Extension versus Resting Flexion-Dr. Stephen K. Aoki, M.D.

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Video Summary

Two studies were presented: The first evaluated whether type 2 tibial spine fractures reliably reduce when the knee is extended. Using MRI in children under 18, the study found that extension did not consistently reduce fracture displacement below 4mm, regardless of intermeniscal ligament entrapment. The second study examined an all-inside ACL reconstruction technique using hamstring autografts. Harvesting semitendinosus and gracilis tendons with a simple technique consistently produced grafts ≥8mm, the ideal size associated with better outcomes. Among 113 patients, graft sizes averaged 9.3mm, with females having smaller but adequate grafts, enabling consistent, reliable ACL reconstructions without allografts.

Keywords

type 2 tibial spine fractures

MRI in children

knee extension fracture reduction

all-inside ACL reconstruction

hamstring autografts graft size