If the pain persists, this scan may confirm occult bony injury. Magnetic Resonance Imaging
In a few situations, magnetic resonance imaging (MRI) will change your management of an injury. The diagnosis of the ACL tear should be made clinically. If the loss of extension persists, the MRI can be performed to determine whether this is a bucket-handle tear or an impingement of the ACL bundle, a cyclops lesion. The meniscus tear should be repaired early and, in some situations, the ACL reconstruction should be delayed until a good range of motion has been achieved after the meniscus repair. In the cyclops lesion, both the debridement of the ligament ends and the ACL reconstruction can be done simultaneously as described by Pinczewski. Remember that a good physical examination by an experienced physician is more reliable than an MRI.
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