Which criteria are used to clear patients to return to sport after primary ACL reconstruction? A scoping review.

OBJECTIVE: To describe the criteria used to clear athletes to return to sport (RTS) following primary ACL reconstruction.
DESIGN: Scoping review. DATA SOURCES: MEDLINE, Embase, CINAHL and SPORTDiscus electronic databases were searched using keywords related to ACL and RTS. ELIGIBILITY CRITERIA: Prospective or retrospective studies reporting at least one RTS criterion for athletes who had primary ACL reconstruction with an autograft.
RESULTS: In total, 209 studies fulfilled the inclusion criteria. RTS criteria were categorised into six domains: time, strength, hop testing, clinical examination, patient-report and performance-based criteria. From the 209 included studies, time was used in 178 studies (85%), and in 88 studies (42%) was the sole RTS criterion. Strength tests were reported in 86 studies (41%). Sixteen different hop tests were used in 31 studies (15%). Clinical examination was used in 54 studies (26%), patient report in 26 studies (12%) and performance-based criteria in 41 studies (20%).
SUMMARY: Time and impairment-based measures dominated RTS criteria, despite sport being a complex physical and biopsychosocial activity with demands across all aspects of function. Time was included as a criterion in 85% of studies, and over 80% of studies allowed RTS before 9 months. Whether RTS tests are valid-do they predict successful RTS?-is largely unknown. © Author(s) (or their employer(s)) 2019. No commercial re-use. See rights and permissions. Published by BMJ.