Purpose1) Characterize initiation and utilization of supervised physical rehabilitation after arthroscopic anterior cruciate ligament reconstruction (ACLR), including overall duration of rehabilitation and number of rehabilitation visits and 2) describe demographic and clinical predictors of rehabilitation initiation and utilization characteristics. MethodsPatients aged 14 to 64 in the U.S. who underwent ACLR from 2017 to 2020 were identified using the Merative MarketScan Database. For patients initiating rehabilitation within 45 days postoperatively, the overall duration and number of visits within 1 year after surgery were determined. Visits were categorized into rehabilitation phases, with visits 0-90 days postoperatively categorized as Phase I, 91-180 days as Phase II, 181-270 days as Phase III, and 271-365 days as Phase IV. Multivariable regression models identified predictors of rehabilitation initiation, duration in days, and number of visits. ResultsOf 20,097 ACLR patients, 88.1% (n=17,704) initiated postoperative rehabilitation, receiving Phase I services. Additionally, 55.0% (n=11,053) received Phase II services, 17.0% (n=3,417) Phase III services, and 3.9% (n=779) Phase IV services. The median duration was 104 days (IQR 63-157), and the median number of visits was 21 (IQR 12-32). Multiple significant predictors of rehabilitation initiation, duration, and number of visits were found. ConclusionWhile the majority of patients utilize supervised physical rehabilitation after ACLR, only 55% receive rehabilitation beyond 3 months and only 17% beyond 6 months after surgery. There are several significant drivers of rehabilitation initiation, overall duration, and number of visits. Female and younger patients have greater utilization of rehabilitation, and notable regional differences suggest an opportunity to improve standardization of care. Level of EvidenceLevel III (Retrospective Descriptive Study)
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