Physical therapy in sport : official journal of the Association of Chartered Physiotherapists in Sports Medicine · 2025
Clinical predictors of ACL reinjury after reconstruction: Insights from a Brazilian cohort.
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Sallum Andrea Forgas, Abdalla Rene Jorge, de Carvalho Rogério Teixeira, Franciozi Carlos Eduardo
Аннотация
OBJECTIVES: To investigate predictors of anterior cruciate ligament (ACL) reinjury in a cohort of 234 patients who underwent isolated ACL reconstruction.
DESIGN: Retrospective cohort study with prospective follow-up.
SETTING: Medical records of 1155 patients were screened. Patients were followed up via phone interviews and evaluated with functional scales and clinical data.
PARTICIPANTS: 234 patients with isolated, primary ACL injuries. Data collected included demographics, graft type, isokinetic strength deficits, dynamic knee valgus tests, and follow-up duration.
MAIN OUTCOME MEASURES: ACL reinjury (ipsilateral graft rupture or contralateral), confirmed through medical documentation. Functional outcomes assessed with Tegner and Lysholm scores.
RESULTS: Reinjury was observed in 27 patients (contralateral), 29 (ipsilateral), and 7 (bilateral). Age at primary injury was the only significant predictor of reinjury (OR = 0.97, p = 0.028). Muscle strength deficits and dynamic valgus were not associated with reinjury risk. Patients with >5 years of follow-up had significantly lower Tegner scores (p = 0.039), though Lysholm scores showed no significant difference.
CONCLUSIONS: Younger age is a significant predictor of ACL reinjury. Functional scores decline over time, likely due to aging rather than graft failure. These results highlight the importance of long-term follow-up, particularly in younger patients.
DESIGN: Retrospective cohort study with prospective follow-up.
SETTING: Medical records of 1155 patients were screened. Patients were followed up via phone interviews and evaluated with functional scales and clinical data.
PARTICIPANTS: 234 patients with isolated, primary ACL injuries. Data collected included demographics, graft type, isokinetic strength deficits, dynamic knee valgus tests, and follow-up duration.
MAIN OUTCOME MEASURES: ACL reinjury (ipsilateral graft rupture or contralateral), confirmed through medical documentation. Functional outcomes assessed with Tegner and Lysholm scores.
RESULTS: Reinjury was observed in 27 patients (contralateral), 29 (ipsilateral), and 7 (bilateral). Age at primary injury was the only significant predictor of reinjury (OR = 0.97, p = 0.028). Muscle strength deficits and dynamic valgus were not associated with reinjury risk. Patients with >5 years of follow-up had significantly lower Tegner scores (p = 0.039), though Lysholm scores showed no significant difference.
CONCLUSIONS: Younger age is a significant predictor of ACL reinjury. Functional scores decline over time, likely due to aging rather than graft failure. These results highlight the importance of long-term follow-up, particularly in younger patients.