open access

https://hdl.handle.net/2115/49923

Gender-Based Differences in Outcome After Anatomic Double-Bundle Anterior Cruciate Ligament Reconstruction With Hamstring Tendon Autografts

英語

hamstring tendon

2011-09

Sage Publications

American Journal of Sports Medicine

39(9)

1849-1857

Background: Although previous studies suggested that female patients are predisposed to increase graft laxity compared with male patients after single-bundle anterior cruciate ligament (ACL) reconstruction using autogenous hamstring tendons, there have been no studies specifically examining gender-based differences in outcome after anatomic double-bundle ACL reconstruction with hamstring tendon autografts. Hypotheses: 1) Female patients would have significantly smaller hamstring graft diameters than did men for anatomical double-bundle ACL reconstruction surgery; 2) Female patients would have increased graft laxity compared with male patients after anatomical double-bundle ACL reconstruction using autogenous hamstring tendons. Study Design: Cohort study. Methods: The consecutive 174 patients who underwent anatomic double-bundle ACL reconstruction using autogenous hamstring tendons were enrolled. Of these subjects, 49 women and 73 men were prospectively evaluated 2 years after surgery. Results: The diameters for anteromedial and posterolateral grafts in the female group were significantly smaller than those in the male group. On Lachman testing, 98% of the female group and 97% of the male group were rated as negative. Regarding the pivot-shift test, 80% of the female group and 85% of the male group were rated as negative. No significant differences were found between the female and male groups in these tests. The average side-to-side differences in the KT-2000 knee ligament arthrometer values were 1.3 mm in the female group and 1.4 mm in the male group; this difference between females and males was not statistically significant. The average Lysholm scores were 96.7 points in the female group and 97.2 points in the male group. 73% of the female group and 74% of the male group were graded as normal on the IKDC evaluation. There were no significant differences in Lysholm score or IKDC evaluation between the female and male groups. Conclusion: The results of assessment for ligament laxity at the 2-year postoperative evaluation in the female group were approximately identical to those of the male group after anatomical double-bundle ACL reconstruction using autogenous hamstring tendons. Therefore, the present study suggests that anatomical double-bundle ACL reconstruction using autogenous hamstring tendons provides satisfactory knee stability to female patients as well as male patients.

学術雑誌論文

Accepted Manuscript

The final, definitive version of this article has been published in the Journal, American Journal of Sports Medicine, 39(9), 2011 of publication, © The Author(s), 2011 by SAGE Publications Ltd at the American Journal of Sports Medicine page: http://ajs.sagepub.com/ on SAGE Journals Online: http://online.sagepub.com/

0363-5465