The overall SSI rate after ACLR was 0.48%. Deep SSIs were identified in 0.32% of the ACLR cases and superficial SSIs in 0.16%. An 8.2-times higher risk of SSIs was observed in hamstring tendon autografts compared with BPTB autografts. No difference in SSI incidence was identified between allografts and BPTB autografts. Surgeons should bear in mind that although the overall infection rates after ACLR are low, there is an increased risk of deep infections with hamstring tendon autografts.
We examined the association of graft type with the risk of early revision of primary anterior cruciate ligament reconstruction (ACLR) in a community-based sample. A retrospective analysis of a cohort of 9817 ACLRs recorded in an ACLR Registry was performed. Patients were included if they underwent primary ACLR with bone-patellar tendon-bone autograft, hamstring tendon autograft or allograft tissue. Aseptic failure was the main endpoint of the study. After adjusting for age, gender, ethnicity, and body mass index, allografts had a 3.02 times (95% confidence interval (CI) 1.93 to 4.72) higher risk of aseptic revision than bone-patellar tendon-bone autografts (p < 0.001). Hamstring tendon autografts had a 1.82 times (95% CI 1.10 to 3.00) higher risk of revision compared with bone-patellar tendon-bone autografts (p = 0.019). For each year increase in age, the risk of revision decreased by 7% (95% CI 5 to 9). In gender-specific analyses a 2.26 times (95% CI 1.15 to 4.44) increased risk of hamstring tendon autograft revision in females was observed compared with bone-patellar tendon-bone autograft. We conclude that allograft tissue, hamstring tendon autografts, and younger age may all increase the risk of early revision surgery after ACLR.
Both nonoperative and operative treatments for anterior cruciate ligament (ACL) deficient knees in skeletally immature patients have reported potentially negative outcomes. This study describes primary ACL reconstruction patients with open physes and their concurrent injuries and evaluates whether these patients are at a higher early risk of revision and reoperation than closed physes patients. A retrospective analysis of prospectively collected data was performed. Patients were identified using an ACL Reconstruction Registry. Summary statistics comparing open and closed physes patients of similar ages in regard to patient characteristics and incidence of early revision and reoperation are provided. Adjusted Cox regression models assessed risk of early revision and reoperation for open physes patients. Of 1,867 patients identified, 232 (12.4%) patients had open physes and 1,635 (87.6%) patients had closed physes. Patients with open physes were younger, less likely to be women, and had less medial meniscal injuries than closed physes patients. No significant differences were observed in cartilage injury, overall menisci injury and repair, and early revision and reoperation rate. According to the our results, no significant differences in risk of early revision or early reoperation in open physes compared with closed physes patients when adjusting for age were observed, nor were there any reoperations for physeal closure.
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