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Table 3 MRI Sensitivitiy compared to arthroscopy in the diagnosis of ACL injuries

From: Diagnosis of ACL and meniscal injuries: MR imaging of knee flexion versus extension compared to arthroscopy

 

Partial torn ACL

Complete ACL rupture

Arthroscopy

8/29

20/29

MRI 0° vs. arthroscopy

4/8 (50%)

17/20 (83%)

MRI 30° vs. arthroscopy

5/8 (63%)

17/20 (83%)

MRI 55° vs. arthroscopy

5/8 (63%)

19/20 (93%)

  1. Diagnosis of these injuries by MRI was compared by arthroscopy. The number of correctly diagnosed ACL injuries and the percentage of sensitivity are presented. In one patient an ACL tear was diagnosed on MRI but couldnt be confirmed at arthroscopy. Because in only patients with suspected ACL tears seen on MR imaging, arthroscopies were performed, in this table the specificity of arthroscopically proven intact ACL can not be given.
  2. Abbreviations:
  3. ACL = Anterior Cruciate Ligament.
  4. Vs. = versus.