Partial tear of the anterior cruciate ligament of the knee: injury patterns on MR imaging

Dyck, Pieter Van; Smet, Els De; Veryser, J; Lambrecht, Valérie; Gielen, Jan; Vanhoenacker, Filip; Dossche, Lieven; Parizel, Paul M.

doi:10.1007/s00167-011-1617-7

Cited by 118 publications

(79 citation statements)

References 19 publications

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“…These three categories were determined based on previously reported MRI criteria of ACL injury (Figs. 5-7) [18,[27][28][29]. Completely torn was defined as a failure to visualize the ACL.…”

Section: Mri Protocol and Interpretation (77 Knees)mentioning

confidence: 99%

“…Obvious discontinuity was also considered a sign of a complete injury (Fig. 5) [28,29]. Increased signal intensity within the ligament substance, distortion of fibers, and significant thinning of the bundles without obvious discontinuity were all defined as attenuated (Fig.…”

Section: Mri Protocol and Interpretation (77 Knees)mentioning

confidence: 99%

“…Increased signal intensity within the ligament substance, distortion of fibers, and significant thinning of the bundles without obvious discontinuity were all defined as attenuated (Fig. 6) [17,[27][28][29]. In contrast, an ACL bundle that could be followed continuously with homogeneous low signal intensity from the tibial and to the femoral insertions was defined as intact ( Fig.…”

Section: Mri Protocol and Interpretation (77 Knees)mentioning

confidence: 99%

“…Given the potential advantages and disadvantages of the technique, precise preoperative prediction of each ACL bundle condition would help surgeons establish proper surgical plans when considering selective bundle reconstruction. In this respect, although patients' subjective instability and physical findings are the most important for decision of ACL reconstruction, MRI may have a valuable role because it is the best noninvasive modality to assess ACL structural integrity [28]. Nevertheless, information on the diagnostic accuracy of MRI to detect individual bundle injuries is lacking.…”

Section: Introductionmentioning

confidence: 99%

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How Useful Is MRI in Diagnosing Isolated Bundle ACL Injuries?

Chang

Choi

et al. 2013

Clinical Orthopaedics &Amp; Related Research

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Background Selective bundle anterior cruciate ligament (ACL) reconstruction and/or remnant ACL preservation may be reasonable options for some patients. However, the frequency of isolated anteromedial (AM) or posterolateral (PL) bundle injuries in patients undergoing ACL reconstruction is unknown, and the value of MRI for prediction of this injury pattern is likewise unknown. Questions/purposes We sought to determine (1) the proportion of knees with an intact AM or PL bundle in patients undergoing ACL reconstruction; (2) whether MRI predicted the bundle conditions seen at the time of surgery; and (3) whether the accuracy of the MRI prediction was affected by the timing of MRI after injury. Methods During primary ACL reconstructions of 156 knees, conditions of AM and PL bundles were separately examined and classified into three categories: (1) completely torn; (2) attenuated; and (3) intact. Then, the bundles were assessed by blinded observers on MRI and classified into the corresponding three categories for 77 patients who had an MRI at our institution using a standard protocol. Diagnostic accuracy of MRI was computed, and the early MRI group (B 6 weeks from injury to MRI acquisition) was compared with the late MRI group ([6 weeks). Results Only 11 (7%) of the 156 knees we treated had an intact AM (one knee) or PL bundle (10 knees). Another 55 knees (35%) had a structurally continuous but attenuated AM or PL bundle. The overall diagnostic accuracy of MRI was 83%; accuracy was better for the AM bundle than the PL bundle (91% versus 78%; p = 0.026). MR prediction was less accurate in the early MRI group, particularly for PL bundle injury.

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“…These three categories were determined based on previously reported MRI criteria of ACL injury (Figs. 5-7) [18,[27][28][29]. Completely torn was defined as a failure to visualize the ACL.…”

Section: Mri Protocol and Interpretation (77 Knees)mentioning

confidence: 99%

Section: Mri Protocol and Interpretation (77 Knees)mentioning

confidence: 99%

Section: Mri Protocol and Interpretation (77 Knees)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

How Useful Is MRI in Diagnosing Isolated Bundle ACL Injuries?

Chang

Choi

et al. 2013

Clinical Orthopaedics &Amp; Related Research

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“…Recently, Van Dyck et al [5] demonstrated that the accuracy of MRI for the diagnosis of partial ACL tears was 25% to 53%, with only moderate interobserver agreement. The authors found that the partial tears demonstrated MRI features that are indistinguishable from complete ACL tears, mucoid ACL degeneration, and the normal ACL.…”

mentioning

confidence: 99%

CORR Insights®: How Useful is MRI in Diagnosing Isolated Bundle ACL Injuries?

Levy

2013

Clinical Orthopaedics &Amp; Related Research

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MRI of knee ligament injury and reconstruction

Farshad‐Amacker

Potter

2013

Magnetic Resonance Imaging

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Knee ligament instability may lead to meniscal and chondral damage, resulting in early osteoarthritis. Due to its superior soft tissue contrast and avoidance of harmful ionizing radiation, MRI has become the most important imaging modality for early recognition of structural defects of the knee joint. This review aims to the understanding of MRI appearances of knee ligament structures associated with knee instability, and to review the common patterns of altered knee mechanics that lead to ligament failure. Normal anatomy of the knee ligaments, pathologic conditions, and postsurgical appearances of the anterior cruciate ligament, posterior cruciate ligament, medial collateral ligament, and posterolateral corner are described.

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Partial tear of the anterior cruciate ligament of the knee: injury patterns on MR imaging

Abstract: MR diagnosis of a partial ACL tear is difficult because various tear patterns may be seen. Many partial tears demonstrate MR features that are indistinguishable from complete ACL tear, mucoid ACL degeneration or normal ACL. An isolated ACL bundle tear is infrequently detected on MR images.

Cited by 118 publications

References 19 publications

How Useful Is MRI in Diagnosing Isolated Bundle ACL Injuries?

How Useful Is MRI in Diagnosing Isolated Bundle ACL Injuries?

CORR Insights®: How Useful is MRI in Diagnosing Isolated Bundle ACL Injuries?

MRI of knee ligament injury and reconstruction

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