请行家帮我看看这个MRI报告，我膝盖伤的有多严重，是不是必须要手术了？谢谢…
1. Full-thickness tear of the ACI.
2. Injury and possible tear of posterior meniscocapsular capsular attachment
of the medical meniscus. There is high signal within the substance of the
posterior horn of the medical meniscus which is likely contusion.
3. Vertically oriented tear through the middle third of the posterior horn
of the lateral meniscus.
