Researchers randomly assigned 40 patients undergoing two-stage revision ACL reconstruction to receive either autologous iliac crest cancellous bone graft for tunnel grafting (control group; n=20) or silicate-substituted calcium phosphate in the form of sculptable microgranules (Actifuse MIS System, Baxter) as a bone graft substitute for tunnel augmentation (intervention group; n=20). Researchers assessed the patients’ functional outcomes using KT-1000 arthrometry, the Tegner score, the Lysholm score and the IKDC score after a minimum follow-up period of 2 years.

Patients who received silicate-substituted calcium phosphate had a shorter operative time vs autologous bone graft.

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