title: Functional performance 2-9 years after ACL reconstruction: cross-sectional comparison between athletes with bone-patellar tendon-bone, semitendinosus/gracilis and healthy controls.
abstract: OBJECTIVE
  The purpose of this cross-sectional study was to provide descriptive data on functional performance in men and women with ACLR, to compare bone-patellar tendon-bone (BPTB) with semitendinosus/gracilis (STG) within the same sex and to compare the ACLR subjects with healthy controls.
  
  
  METHODS
  Eligible participants comprised 100 men (43 % BPTB) and 84 women (41 % BPTB) after ACLR, of whom 30 men (STG n = 19; BPTB n = 11) and 18 women (STG n = 12; BPTB n = 6) were untraceable/not willing and 15 men (STG n = 9; BPTB n = 6) and 18 women (STG n = 12; BPTB n = 3) were not able to take part in the measurements because of injury. Besides men BPTB (n = 24), men STG (n = 27), women BPTB (n = 23) and women STG (n = 23), healthy men (n = 22) and women (n = 22) participated. Measurements consisted of questionnaires, isokinetic peak torque and endurance tests, a hop test battery and drop jump including video analysis.
  
  
  RESULTS
  Only the occurrence of dynamic knee valgus differed between ACLR and healthy subjects.
  
  
  CONCLUSIONS
  Two to nine years after ACLR, 16 % of athletes could not participate because of a lower extremity injury. In the remaining group, this study showed similar results for males and females with BPTB compared with STG. Also, similar results are found for quantity of movement comparing operated and healthy subjects. For quality of movement, only the occurrence of dynamic knee valgus in landing from a jump is higher in operated subjects compared with healthy controls. This supports the relevance of a focus on quality of movement as part of ACLR rehabilitation programmes and return to sports criteria.
  
  
  METHODS
  III.
authors.affiliation: , Funqtio, Triangelstraat 1F, 5935 AG, Steyl, The Netherlands. nicky@funqtio.nl.|Research Institute for Health Sciences, IQ Healthcare, Radboud University Medical Center, Nijmegen, The Netherlands. nicky@funqtio.nl.
authors.forename: Nicky
authors.initials: N
authors.lastname: Engelen-van Melick
authors.affiliation: Sport Medisch Centrum Papendal, Arnhem, The Netherlands.|Department of Musculoskeletal Rehabilitation, HAN University of Applied Sciences, Nijmegen, The Netherlands.
authors.forename: Robert E H
authors.initials: REH
authors.lastname: van Cingel
authors.affiliation: Orthopaedic Research Laboratory, Radboud University Medical Center, Nijmegen, The Netherlands.
authors.forename: Tony G
authors.initials: TG
authors.lastname: van Tienen
authors.affiliation: Research Institute for Health Sciences, IQ Healthcare, Radboud University Medical Center, Nijmegen, The Netherlands.
authors.forename: Maria W G
authors.initials: MWG
authors.lastname: Nijhuis-van der Sanden
mesh_terms: D000293:Adolescent; D000328:Adult; D016118:Anterior Cruciate Ligament / Q000601:surgery*; D000070598:Anterior Cruciate Ligament Injuries / Q000534:rehabilitation* / Q000601:surgery; D059549:Anterior Cruciate Ligament Reconstruction / Q000379:methods / Q000534:rehabilitation*; D050376:Bone-Patellar Tendon-Bone Grafting / Q000534:rehabilitation; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000601:surgery; D008297:Male; D008875:Middle Aged; D020127:Recovery of Function; D013710:Tendons / Q000637:transplantation; D055815:Young Adult
keywords: Anterior cruciate ligament reconstruction; Functional performance; Quality of movement; Quantity of movement