Quadruple, 5-strand hamstring autograft yield similar outcomes after ACL reconstruction
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Recently published results showed no statistically significant differences in re-rupture and clinical outcomes among the use of either the 5-strand hamstring autograft or the quadruple autograft larger than 8 mm in ACL reconstruction.
Francisco Figueroa, MD, and colleagues divided patients with MRI-diagnosed ACL ruptures and clinical instability with semitendinosus gracilis (ST-G) reconstructions and final graft size larger than 8 mm based on whether they received a quadruple ST-G graft (group A; n=33) or a 5-strand graft due to insufficient graft diameter (group B; n=37). The primary outcome measure was re-rupture rate in both groups, while secondary outcome measures included graft diameter smaller than 8 mm, postoperative Lysholm score, postoperative IKDC score and anterior laxity measured with a KT-1000 arthrometer.
Results showed group A had an average graft diameter of 8.5 mm and group B had a mean diameter of 7.2 mm as a quadruple graft and of 9.2 mm when converted to a 5-strand graft. Researchers found graft diameters in 4-strand and 5-strand grafts were statistically significantly different in group B. According to results, 9% of patients in group A experienced re-ruptures vs. 5.4% in group B. Researchers noted an average postoperative Lysholm score of 93.3 in group A and of 97.1 in group B, as well as mean postoperative IKDC scores of 91 in group A and of 96.8 in group B. – by Casey Tingle
Disclosures: Figueroa reports no relevant financial disclosures. Please see the full study for a list of all other authors’ relevant financial disclosures.