ATTENTION: The software behind KU ScholarWorks is being upgraded to a new version. Starting July 15th, users will not be able to log in to the system, add items, nor make any changes until the new version is in place at the end of July. Searching for articles and opening files will continue to work while the system is being updated.
If you have any questions, please contact Marianne Reed at mreed@ku.edu .
MRI Accurately Predicts Quadrupled Semitendinosus Autograft Size Using Posterior Hamstring Harvest for ACL Reconstruction
![Thumbnail](/bitstream/handle/1808/35451/main%20%284%29.pdf.jpg?sequence=4&isAllowed=y)
View/ Open
Issue Date
2024-04-08Author
Henkelman, Erik
Ayres, Jack M.
Prô, Stephan L.
Publisher
Elsevier
Type
Article
Article Version
Scholarly/refereed, publisher version
Rights
Copyright © 2023 The Authors
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Metadata
Show full item recordAbstract
Purpose
To determine the effectiveness of preoperative magnetic resonance imaging (MRI) measurements of the cross-sectional area (CSA) of the semitendinosus tendon in predicting the intraoperative quadrupled semitendinosus graft diameter of a posteriorly harvested hamstring autograft for anterior cruciate ligament (ACL) reconstruction.Methods
A retrospective review of patients who underwent ACL reconstruction with autograft using a posterior hamstring harvest was performed. Patient demographics and operative reports were reviewed, and measurements of the CSA of the semitendinosus on MRI were performed. Multiple linear regression was used to analyze the predictors for graft diameter. A P value < .05 was considered statistically significant. Interrater and intrarater reliability were calculated.Results
280 patients were included. Patient height (P < .0001), and CSA of the semitendinosus (P < .0001) were significant predictors. Patients shorter than 63 inches had an average graft diameter of 7.89 mm compared to 8.69 mm for patients above 63 in (P < .001). The formula for the model is as follows: Graft diameter (mm2) = 2.74 + .067·Height (in) + .00009 · Weight (lbs) + .0018 · Age (years) +.12·Gender (1 if M, 0 if F) + 8.56 · CSA (cm2). The R2 for the model (0.5620), was greater than models using only height (R2 = .4092) or only CSA Semitendinosus (R2 = .3932). None of the interaction terms between covariates (e.g., height, weight, age, gender) were significant. Age (P =.6400), weight (P = .9970), and gender (P = .6700) were not significant predictors. Both intraclass (ICC = 0.864, 95% CI=[0.791, 0.912]) and interclass correlation (ICC=0.827, 95% CI=[0.715, 0.894]) showed good reliability.Conclusion
CSA semitendinosus tendon and patient height independently perform similarly as predictors of graft diameter. When used together, CSA and height accurately predict the graft diameter. In particular, for patients under 63 in tall who demonstrated an average graft diameter below the minimum 8 mm, as suggested by the literature, this may be a useful tool for preoperative planning of patients intending to undergo ACL reconstruction with posterior hamstring harvest.Level of Evidence
Level III, diagnostic: retrospective cohort study.
Collections
Citation
Henkelman E, Ayres JM, Prô SL. MRI Accurately Predicts Quadrupled Semitendinosus Autograft Size Using Posterior Hamstring Harvest for ACL Reconstruction. Arthrosc Sports Med Rehabil. 2024 Apr 8;6(2):100844. doi: 10.1016/j.asmr.2023.100844. PMID: 38706973; PMCID: PMC11065659
Items in KU ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
We want to hear from you! Please share your stories about how Open Access to this item benefits YOU.