title: Arthroscopic single-bundle anterior cruciate ligament reconstruction with six-strand hamstring tendon allograft versus bone-patellar tendon-bone allograft.
abstract: OBJECTIVE
  The aim of this study was to compare the clinical outcomes of arthroscopic single-bundle anterior cruciate ligament (ACL) reconstruction with six-strand hamstring tendon (HT) allograft versus bone-patellar tendon-bone (BPTB) allograft.
  
  
  METHODS
  The prospective randomized controlled trial was included 129 patients. Sixty-nine patients received reconstruction with six-strand HT allografts (HT group), whereas 60 patients with BPTB allografts (BPTB group). Outcome assessment included re-rupture findings, International Knee Documentation Committee (IKDC) scores, Lysholm scores, KT-1000 arthrometer, Lachman test, pivot-shift test, range of motion (ROM) and single-leg hop test.
  
  
  RESULTS
  At a mean follow-up of 52 months, 113 patients (HT group, 61 patients; BPTB group, 52 patients) completed a minimum 4-year follow-up. Four patients in HT group and six in BPTB group experienced ACL re-rupture (6.2 vs. 10.3 %) and received revision surgery. Significant between-group differences were observed in KT-1000 outcomes and pivot-shift test 1 (1.2 ± 1.5 vs. 1.8 ± 1.3, p = 0.025; positive rate 6.5 vs. 18.9 %, p = 0.036), 2 (1.1 ± 1.4 vs. 1.6 ± 1.2, p = 0.044; 8.1 vs. 20.7 %, p = 0.039), 4 (1.1 ± 1.5 vs. 1.7 ± 1.4, p = 0.031; 9.7 vs. 25 %, p = 0.012) years postoperatively. The outcomes between the two groups were comparable in terms of IKDC scores, Lysholm scores, Lachman test, ROM and single-leg hop test.
  
  
  CONCLUSIONS
  Six-strand HT allograft achieved superior anteroposterior and rotational stability after single-bundle ACL reconstruction. It is a reasonable graft substitute for ACL reconstruction.
  
  
  METHODS
  II.
authors.affiliation: Department of Joint Surgery, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, People's Republic of China.
authors.forename: Chengliang
authors.initials: C
authors.lastname: Dai
authors.affiliation: Department of Joint Surgery, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, People's Republic of China. wangfeimedical@126.com.
authors.forename: Fei
authors.initials: F
authors.lastname: Wang
authors.affiliation: Department of Joint Surgery, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, People's Republic of China.
authors.forename: Xiaomeng
authors.initials: X
authors.lastname: Wang
authors.affiliation: Department of Joint Surgery, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, People's Republic of China.
authors.forename: Ruipeng
authors.initials: R
authors.lastname: Wang
authors.affiliation: Department of Joint Surgery, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, People's Republic of China.
authors.forename: Shengjie
authors.initials: S
authors.lastname: Wang
authors.affiliation: Department of Joint Surgery, Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, People's Republic of China.
authors.forename: Shiyu
authors.initials: S
authors.lastname: Tang
mesh_terms: D000328:Adult; D064591:Allografts; D016118:Anterior Cruciate Ligament / Q000601:surgery; D000070598:Anterior Cruciate Ligament Injuries / Q000601:surgery*; D059549:Anterior Cruciate Ligament Reconstruction / Q000379:methods*; D001182:Arthroscopy; D001842:Bone and Bones / Q000601:surgery; D050376:Bone-Patellar Tendon-Bone Grafting / Q000379:methods*; D005260:Female; D005500:Follow-Up Studies; D000070632:Hamstring Tendons / Q000601:surgery*; D006801:Humans; D007593:Joint Instability / Q000601:surgery; D007719:Knee Joint / Q000601:surgery; D008297:Male; D008875:Middle Aged; D017063:Outcome Assessment, Health Care; D017847:Patellar Ligament / Q000601:surgery; D011446:Prospective Studies; D016059:Range of Motion, Articular; D012086:Reoperation; D012421:Rupture / Q000601:surgery; D013710:Tendons / Q000637:transplantation; D014182:Transplantation, Autologous; D014184:Transplantation, Homologous; D016896:Treatment Outcome; D055815:Young Adult
keywords: Allograft; Anterior cruciate ligament; Bone-patellar tendon-bone; Hamstring tendon; Single-bundle reconstruction