Correlation Analysis of Potential Factors Influencing Graft Maturity After Anterior Cruciate Ligament Reconstruction

@article{Li2014CorrelationAO,
  title={Correlation Analysis of Potential Factors Influencing Graft Maturity After Anterior Cruciate Ligament Reconstruction},
  author={Hong Li and Shuang Chen and Hongyue Tao and Hong-Yun Li and Shiyi Chen},
  journal={Orthopaedic Journal of Sports Medicine},
  year={2014},
  volume={2}
}
Background: Postoperatively, signal changes of the reconstructed anterior cruciate ligament (ACL) graft on magnetic resonance imaging (MRI) images commonly occurs, which may be a cause for concern. The signal intensity changes are usually expressed by signal/noise quotient (SNQ) value, representing graft maturity. To date, little is known about the factors influencing the SNQ value of the reconstructed ACL graft. Purpose: To evaluate ACL graft SNQ value and associated factors after ACL… 
Anterior cruciate ligament grafts display differential maturation patterns on magnetic resonance imaging following reconstruction: a systematic review
TLDR
MRI signal varies with graft type, graft source, and time after ACLR, and may be clinically useful to identify biologically or mechanically deficient ACL grafts at risk for failure.
Tibial slope, remnant preservation, and graft size are the most important factors affecting graft healing after ACL reconstruction
TLDR
The aim of this study was to determine the anatomic, operative and biological factors that influenced graft healing after single-bundle anterior cruciate ligament (ACL) reconstruction and whether these factors should be taken into account for ensuring the ideal graft healing and for the return to sport decision-making.
Effect of Time on MRI Appearance of Graft After ACL Reconstruction: A Comparison of Autologous Hamstring and Quadriceps Tendon Grafts
TLDR
The medianSI of quadriceps grafts significantly decreased on MRI between 3 and 9 months after ACLR, while the median SI of hamstring grafts did not significantly change, and the role of MRI in determining graft maturation remained uncertain.
Graft Size and Orientation Within the Femoral Notch Affect Graft Healing at 1 Year After Anterior Cruciate Ligament Reconstruction
TLDR
Both graft size and graft orientation appeared to have a significant influence on graft healing as assessed on 1- year high-resolution MRI scan, and the 1-year SNQ value had a significant positive association with graft-notch volume ratio and GBA.
The Graft Bending Angle Can Affect Early Graft Healing After Anterior Cruciate Ligament Reconstruction: In Vivo Analysis With 2 Years’ Follow-up
TLDR
The signal intensity was highest in the proximal region and lowest in the distal region of the reconstructed graft at 6 months postoperatively, suggesting a steep GBA may negatively affect proximal graft healing after ACL reconstruction.
Two-year postoperative MRI appearances of anterior cruciate ligament hamstrings autografts are not correlated with functional outcomes, anterior laxity, or patient age
TLDR
The two-year postoperative MRI appearances of four-strand, semitendinosus ACL autografts (as measured by SNQ and Howell score) do not appear to have a relationship with postoperative functional scores, instrumented anterior laxity, or patient age at surgery.
Graft bending angle affects allograft tendon maturity early after anterior cruciate ligament reconstruction
TLDR
Generally, the graft bending angle was correlated with a high signal intensity of the proximal graft in the early postoperative period for allograft tendons and in the late postoperative periods for allogsrafts and autografts after ACL reconstruction.
Regional Differences in Anterior Cruciate Ligament Signal Intensity After Surgical Treatment
TLDR
The results suggest that graft remodeling is location specific, and repaired ACLs were more homogeneous, with lower or comparable normalized signal intensity values at 2 years as compared with the contralateral native ACL and reconstructed grafts.
Time From Injury to Surgery Affects Graft Maturation Following Posterior Cruciate Ligament Reconstruction With Remnant Preservation: A Magnetic Resonance Imaging-Based Study.
  • Shaohua Liu, Yaying Sun, +4 authors Jiwu Chen
  • Medicine
    Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association
  • 2018
TLDR
The remnant-preserved PCLR resulted in satisfactory clinical outcomes and graft maturation at a mean follow-up of 38.4 months, and the time from injury to surgery showed a weak positive correlation with postoperative graft signal intensity on MRI.
Magnetic Resonance Imaging 1 Year After Hamstring Autograft Anterior Cruciate Ligament Reconstruction Can Identify Those at Higher Risk of Graft Failure: An Analysis of 250 Cases
TLDR
ACLR graft rupture after 1 year is associated with MRI appearances of high graft signal adjacent to and within the femoral tunnel aperture, adding further radiographic evidence that the rate-limiting step to graft healing occurs proximally.
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References

SHOWING 1-10 OF 41 REFERENCES
Difference in Graft Maturity of the Reconstructed Anterior Cruciate Ligament 2 Years Postoperatively
TLDR
The allograft group had a significantly higher SNQ value compared with the autografted group in this study, indicating that allografted tendons might have inferior graft maturity than autograft tendons in ACL reconstruction at 2 years postoperatively.
Anterior cruciate ligament reconstruction grafts: MR imaging features at long-term follow-up--correlation with functional and clinical evaluation.
TLDR
Small amounts of increased intrasubstance graft signal intensity on intermediate- and T2-weighted images can be seen after ACL reconstruction at long-term follow-up of 4 years or longer and do not necessarily correlate with findings of joint instability or functional limitations in patients after ACL repair.
Prospective Analysis of Failure Rate and Predictors of Failure After Anatomic Anterior Cruciate Ligament Reconstruction With Allograft
Background: Anterior cruciate ligament (ACL) reconstruction is one of the most frequently performed orthopaedic procedures. Failures are a reality of surgery; to limit failures, we must first
MRI of double-bundle ACL reconstruction: evaluation of graft findings
TLDR
The use of orthogonal sequences in the evaluation of the PL graft SI seems to cause volume-averaging artefacts, and both grafts were disrupted in 3% of patients.
Signal intensity on magnetic resonance imaging after allograft double-bundle anterior cruciate ligament reconstruction
TLDR
The PL bundle displayed increased signal intensity compared to the AM bundle and based on previous studies may indicate a longer healing process, and Plain MRI may be useful to assess graft healing after ACL reconstruction.
Magnetic Resonance Evaluation of Remodeling Process in Patellar Tendon Graft
TLDR
The findings show a clear association between graft impingement and the subsequent appearance of the graft on magnetic resonance imaging, and no significant correlation was observed between the presence of a high signal intensity and postoperative instability.
Allograft anterior cruciate ligament reconstruction in the young, active patient: Tegner activity level and failure rate.
  • G. Barrett, K. Luber, W. Replogle, Josie L. Manley
  • Medicine
    Arthroscopy : the journal of arthroscopic & related surgery : official publication of the Arthroscopy Association of North America and the International Arthroscopy Association
  • 2010
TLDR
It is concluded that fresh-frozen BPTB allografts should not be used in young patients who have a high Tegner activity score because of their higher risk of failure.
Posterior Tibial Slope Influences Static Anterior Tibial Translation in Anterior Cruciate Ligament Reconstruction
TLDR
There was a significant correlation between PTS and postoperative anterior knee static stability in this study and patients with a steeper medial or lateral PTS showed a higher risk of ATT ≥5 mm at thresholds of 5.6° and 3.8°, respectively.
Does the Graft Source Really Matter in the Outcome of Patients Undergoing Anterior Cruciate Ligament Reconstruction?
TLDR
It is believed that, with currently available data, the graft source has a minimal effect on the outcome of patients undergoing anterior cruciate ligament reconstruction, and an individual graft source is not identified that was clearly superior to the other graft sources.
Younger Patients Are at Increased Risk for Graft Rupture and Contralateral Injury After Anterior Cruciate Ligament Reconstruction
TLDR
Patients younger than 20 years who undergo ACL reconstruction are at significantly increased risk for both graft rupture and contralateral ACL injury.
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