The QT autograft detected comparable rate of Lachman test > 3 mm , Pivot shift test > 3 m and instrumental laxity > 3 mm .
The QT autograft showed a lower rate of autograft failure above all .
The QT autograft detected the reduced rate of AKP than the PT .
Quadriceps tendon autograft may represent a feasible option for primary ACL reconstruction .
The purpose of the current study was to clarify the role of the quadriceps tendon ( QT ) autograft for primary ACL reconstruction .
Thus , a Bayesian network meta- analysis comparing patients undergoing a primary ACL reconstruction with QT versus patellar tendon ( PT ) and hamstring tendon ( HT ) autografts  was conducted .
A Randomized Clinical Trial Comparing Patellar Tendon, Hamstring Tendon, and Double-Bundle ACL Reconstructions: Patient-Reported and Clinical Outcomes at a Minimal 2-Year Follow-up
Objective : To compare 3 anatomically positioned autografts for anterior cruciate ligament ( ACL ) reconstruction , by measuring patient-reported disease-specific quality of life at 2 years postoperatively . Design : Double-blinded , r and omized clinical trial with intraoperative computer-generated treatment allocation . Patients and an independent trained evaluator were blinded . Setting : University-based orthopedic referral practice . Patients : Three hundred thirty patients ( 14 - 50 years ; 183 male patients ) with isolated ACL deficiency were equally r and omized to : ( 1 ) patellar tendon , PT : 28.7 years ( SD = 9.7 ) ; ( 2 ) quadruple-str and ed hamstring tendon , HT : 28.5 years ( SD = 9.9 ) ; and ( 3 ) double bundle using HT , DB : 28.3 years ( SD = 9.8 ) ; 322 patients completed 2-year follow-up . Intervention : Anterior cruciate ligament reconstruction using PT , HT , or DB autografts . Main Outcome Measures : Measured at baseline , 1 and 2 years postoperatively— primary : anterior cruciate ligament quality -of-life scores ; secondary : International Knee Documentation Committee ( IKDC ) scores , KT-1000 arthrometer , pivot shift , range of motion , Tegner activity , Cincinnati Occupational Scale , and single-leg hop . Proportions of correct graft type guesses by the patients and evaluator assessed blinding effectiveness . Results : Baseline characteristics were not different . Anterior cruciate ligament quality -of-life scores increased over time for all groups ( P = 0.001 ) but were not different at 2 years ( P = 0.591 ) : PT = 84.6 ( SD = 16.6 , 95 % confidence interval [ CI ] = 81.4 - 87.8 ) , HT = 82.5 ( SD = 17.7 , 95 % CI = 79.2 - 85.9 ) , and DB = 82.4 ( SD = 17.5 , 95 % CI = 79.1 - 85.7 ) . Two-year KT-1000 side-to-side differences ( PT = 1.86 mm ; HT = 2.97 mm ; DB = 2.65 mm ) were statistically significant between PT – HT ( P = 0.002 ) and PT – DB ( P = 0.044 ) . The remaining secondary outcomes were not statistically different . Correct graft type guesses occurred 51 % of the time for patients and 46 % for the evaluator . Conclusions : Two-year disease-specific quality -of-life outcome was not different between the ACL reconstruction techniques . The PT reconstructions had significantly lower side-to-side differences on static stability measures . Patient and evaluator blinding was achieved . Level of Evidence : Level 1 ( Therapeutic Studies ) . Clinical Relevance : This high- quality , large , double-blind r and omized clinical trial ( RCT ) addresses the insufficient evidence in the literature comparing PT , single-bundle hamstring , and DB hamstring reconstructions for ACL rupture in adults . In addition to the clinical and functional results , this RCT uniquely reports on the disease-specific , patient-reported quality -of-life outcome at 2 years postoperatively
The QT autograft detected comparable rate of Lachman test > 3 mm , Pivot shift test > 3 m and instrumental laxity > 3 mm .
The QT autograft showed a lower rate of autograft failure above all .
The QT autograft detected the reduced rate of AKP than the PT .
Quadriceps tendon autograft may represent a feasible option for primary ACL reconstruction .
The purpose of the current study was to clarify the role of the quadriceps tendon ( QT ) autograft for primary ACL reconstruction .
Thus , a Bayesian network meta- analysis comparing patients undergoing a primary ACL reconstruction with QT versus patellar tendon ( PT ) and hamstring tendon ( HT ) autografts  was conducted .