Title: Role of Sagittal-Oblique and Flexion MR Technique for Evaluation of Anterior Cruciate Ligament Injury in the Knee

Authors: Dr Arya Sasikumar, Dr E.A Parthasarathy, Sharik Anwar, Dr Alex Daniel Prabhu, Dr Einstien. A, Dr Rajamani Anand, Dr Vijay Prabhu

 DOI: https://dx.doi.org/10.18535/jmscr/v8i3.67

Abstract

   

Background: In complete tear of ACL the normal technique can easily diagnose it. When it comes to partial tear the standard technique has less sensitive for it because the normal knee technique will not give us the complete course of ACL in a single image. In this case sagittal-oblique and flexion sequences are added. These sequences will give us the complete course of ACL in single image which improves the diagnostic quality.

Aims and Objective: To Evaluate the Diagnostic value of sagittal-oblique and flexion MR sequences to detect Partial Tear in Anterior Cruciate Ligament of Knee in Comparison with other Routine Sagittal Knee Sequences. 

Result: In routine sagittal imaging of knee 9 patients (30%) were found to have normal ACL, 8 (26.6%) had partial tear and 13 (43.3%) had complete tear of ACL. On sagittal-oblique and flexion technique 13 (43.3%) patients were diagnosed with partial tear of ACL. Therefore in 4 cases partial tear was missed on routine sagittal imaging. The percentage of compete tear using standard sagittal imaging was 43.3% (13 patients). Both flexion and sagittal-oblique imaging had the same efficacy as routine sagittal technique in diagnosing complete tear.

Conclusion: Lower accuracy of standard MR protocol for partial tear of ACL can be improved by using additional sagittal-oblique and flexion technique MR.

Keywords: Knee MRI, anterior cruciate ligament,

References

  1. Nenezic D, Kocijancic I. The value of the sagittal-oblique MRI technique for injuries of the anterior cruciate ligament in the knee.RadiolOncol. 2013 Feb 1;47(1):19–25.
  2. Imaging of the anterior cruciate ligament. Pediatric Imaging •Original Research. Jeffrey American Journal of Roentgenology 2005.185:756-762. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3302044/
  3. (PDF) The role of oblique axial MR imaging in the diagnosis of ACL bundle lesions [Internet]. [cited 2020 Feb 6]. Available from: https://www.researchgate.net/publication/277133901_The_role_of_oblique_axial_MR_imaging_in_the_diagnosis_of_ACL_bundle_lesions
  4. MRI of anterior cruciate ligament injuries and associated findings in the pediatric knee: changes with skeletal maturation. - PubMed - NCBI [Internet]. [cited 2020 Feb 6]. Available from: https://www.ncbi.nlm.nih.gov/pubmed/16120930
  5. Ghasem Hanafi M, Momen Gharibvand M, Jaffari Gharibvand R, Sadoni H. Diagnostic Value of Oblique Coronal and Oblique Sagittal Magnetic Resonance Imaging (MRI) in Diagnosis of Anterior Cruciate Ligament (ACL) Tears. J Med Life. 2018;11(4):281–5.
  6. Oblique sagittal view of the anterior cruciate ligament: Comparison of coronal vs. axial planes as localizing sequences - Barberie - 2001 - Journal of Magnetic Resonance Imaging - Wiley Online Library [Internet]. [cited 2020 Feb 6]. Available from: https://onlinelibrary.wiley.com/doi/full/10.1002/jmri.1174
  7. Roychowdhury S, Fitzgerald SW, Sonin AH, Peduto AJ, Miller FH, Hoff FL. Using MR   imaging to diagnose partial tears of the anterior cruciate ligament: value of axial images. AJR Am J Roentgenol 1997;168:1487-91
  8. Miller TT, Gladden P, Staron RB, Henry JH, Feldman F. Posterolateral stabilizers of the  knee: anatomy and injuries assessed with MR imaging.  AMR Am J Roentgenol 1997;169:1641-7
  9. Noyes FR, Mooar LA, Moorman CT 3rd, McGinniss GH. Partial tears of the anterior cruciate ligament.  Progression  to complete ligament deficiency.  J Bone Joint Surg Br 1989;71:825-33
  10. Johnson DL, Warner JJ. Diagnosis for anterior cruciate ligament surgery.  Clin Sports Med 199;12:671-84
  11. Shelbourne KD1, Nitz PA. Am J Sports Med.1991 Sep-Oct;19(5):474-7.
  12. RSNA Radiology Vol 245 No 3 Dec 1 2007https://doi.org/10.1148/radiol.2453050159
  13. Stoller DW, Tirman PFJ, Bredella MA. The knee. In: Diagnostic imaging: orthopaedics. Salt Lake City, Utah: Amirsys, 2004.Google Scholar.
  14. Harper S. Case of the month: ACL synovial inflammatory pseudomass. ProScan Imaging Web site.http://www.proscan.com/fw/main/May_2004_to_print-304.html. Published  May 2004. Accessed January 26, 2005. Google Scholar.
  15. Allen AM. Knee, anterior cruciate ligament injuries (MRI). eMedicine Web site. http://www.emedicine.com/radio/topic853.htm. Updated June 14, 2006. Accessed January 26, 2005. Google Scholar.

Corresponding Author

Dr Arya Sasikumar

Chettinad Health City, Kelambakkam, Kanchipuram Dist. TN 603103