Age Shapes Synovial Biomarker Levels and Outcomes After ACL Surgery
A prospective cohort study of 100 patients undergoing ACL reconstruction analyzed preoperative synovial fluid biomarkers and patient-reported outcomes at a minimum of 5 years postoperatively. The study reported that increasing age was independently associated with lower TIMP-1 concentrations, worse long-term outcomes, and reduced likelihood of achieving minimally important clinical improvement in pain, function, and activity; several biomarkers (MIP-1beta, MMP-3, TIMP-2, bFGF) showed age-dependent associations with specific outcomes. The authors concluded that age modifies the prognostic significance of certain synovial biomarkers after ACL injury.
Most relevant for: Patients undergoing ACL reconstruction across a range of ages, particularly relevant to prognostic risk stratification based on preoperative synovial fluid biomarkers.
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