title: Return to sports after ACL reconstruction: a new functional test protocol.
abstract: BACKGROUND
  In literature, there are lack of studies proposing clear and rationally designed test battery to be performed after an ACL reconstruction.
  
  
  METHODS
  From 2006 to 2015, 80 football players were subjected, after ACL reconstruction, to a newly conceived test battery analyzing: Isometric and isokinetic force productionThe different phases during the jumpThe correct control of the landing phase after jumpThe control of valgus during landing after jump and cutting movements.
  
  
  RESULTS
  The isokinetic and isometric test do not show any significant relationship with the another test. The laboratory test as well the field test showed them a significant correlation.
  
  
  CONCLUSIONS
  The results showed that a normal force production during the laboratory does not guarantee an equally satisfactory production of force during the field test.
  
  
  METHODS
  Case series (Level III).
authors.affiliation: Qatar Orthopaedic and Sport Medicine Hospital, FIFA Center of Excellence, Doha, Qatar.
authors.forename: Gian Nicola
authors.initials: GN
authors.lastname: Bisciotti
authors.affiliation: Department of Knee Orthopedic and Sports Traumatology Unit, Humanitas Research Hospital, Rozzano (MI), Italy.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Quaglia
authors.affiliation: FC Internazionale Medical Staff, Milano, Italy.
authors.forename: Andrea
authors.initials: A
authors.lastname: Belli
authors.affiliation: Department of Knee Orthopedic and Sports Traumatology Unit, Humanitas Research Hospital, Rozzano (MI), Italy.
authors.forename: Giulia
authors.initials: G
authors.lastname: Carimati
authors.affiliation: Department of Knee Orthopedic and Sports Traumatology Unit, Humanitas Research Hospital, Rozzano (MI), Italy; FC Internazionale Medical Staff, Milano, Italy.
authors.forename: Piero
authors.initials: P
authors.lastname: Volpi
keywords: ACL; arthroscopic reconstruction; football; functional evaluation; rehabilitation