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Similar results found with anatomic single- and double- bundle individualized ACL reconstruction
There are no notable differences in anatomic double-bundle and anatomic single-bundle ACL reconstruction outcomes when the surgeon uses an individualized ACL reconstruction technique based on size of the insertion site, according to this study.
Hussein and colleagues performed a nonrandomized cohort study of 69 patients who underwent anatomic double-bundle ACL reconstruction and 32 patients that underwent anatomic single-bundle ACL reconstruction with hamstring autograft tendons. The surgeries were performed by Hussein who used an individualized technique based on the size of the tendon insertion site. Fixation used on both sides was similar in the two groups. Patients in both groups had similar demographics and follow-up was an average of 30 months.
All patients completed appropriate preoperative evaluations and questionnaires, including the Lachman, anterior drawer, pivot shift and KT-1000 arthrometer tests, according to the study.
The authors reported no major differences following evaluation of the patients with single-bundle or double-bundle reconstruction. In the double-bundle group, anteroposterior stability consisted of a 1.5-mm side-to-side difference compared to a 1.6-mm side-to-side difference in the single-bundle group. For rotation stability, 59 patients (92.1%) with double-bundle reconstruction had negative pivot-shift tests vs. 27 patients (90%) in the single-bundle group.
In the double-bundle group the Lysholm score was 93.9 compared to 93.5 in the single-bundle group, which was not significantly different. The subjective International Knee Documentation Committee (IKDC) scores were 93.3 in the double-bundle and 93.1 in the single-bundle groups and the objective IKDC scores were 56 (87.5%) in double-bundle group and 26 (86.7%) in the single-bundle group.
“Similar to the results of our study, other studies show there is no significant difference in clinical evaluations between single-bundle and double-bundle groups,” the authors stated.
Disclosure: The researchers reported no relevant financial disclosures.