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Acl allograft

Emily Meike, S M Howell, M L Hull
PURPOSE: After reconstructing a torn ACL with a soft tissue allograft, the long-term healing process of graft maturation following the short-term healing process of graft incorporation into the bone tunnels might lead to recurring instability and concomitant decreases in the activity level, function, and patient satisfaction. Relying on roentgen stereophotogrammetric analysis (RSA), the primary purpose was to determine whether anterior laxity increased and whether patient-reported outcomes declined between 1 and 7 years for a particular graft construct, surgical technique, and rehabilitation programme...
October 20, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Verena M Schreiber, Susan S Jordan, Gregory A Bonci, James J Irrgang, Freddie H Fu
PURPOSE: The aim of this study was to analyse early post-operative range of motion (ROM) as our anatomic double-bundle (DB) anterior cruciate (ACL) reconstruction technique with respect to tunnel placement evolved. It is the hypothesis of this study that more anatomic placement of the femoral insertion site of the anteromedial (AM) bundle of the ACL results in better restoration of early post-operative knee range of motion. METHODS: Two methods of DB ACL reconstruction regarding more accurate placement of the femoral AM tunnel in relation to its anatomic origin were compared...
October 14, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Mohammad A Yabroudi, Haukur Björnsson, Andrew D Lynch, Bart Muller, Kristian Samuelsson, Majd Tarabichi, Jón Karlsson, Freddie H Fu, Christopher D Harner, James J Irrgang
BACKGROUND: Revision anterior cruciate ligament (ACL) reconstruction surgery occurs in 5% to 15% of individuals undergoing ACL reconstruction. Identifying predictors for revision ACL surgery is of essence in the pursuit of creating adequate prevention programs and to identify individuals at risk for reinjury and revision. PURPOSE: To determine predictors of revision ACL surgery after failed primary ACL reconstruction. STUDY DESIGN: Case-control study; Level of evidence, 3...
September 2016: Orthopaedic Journal of Sports Medicine
J H Noh, H S Kyiung, K H Yoon, Y H Roh
We compare clinical outcomes of two different supplementary tibial fixation in anterior cruciate ligament (ACL) reconstruction using free tendon Achilles allograft. Eighty subjects underwent ACL reconstruction using Endobutton CL for femoral fixation and Bio-interference screw for tibial fixation. Supplementary tibial fixation was performed as direct -cortical fixation using spiked washer screw (group I) or as post-tie using washer screw (group II). -Lachman test, pivot shift test, IKDC classification, Lysholm score, and side-to-side difference (SSD) were evaluated...
August 2016: Acta Orthopaedica Belgica
Shun-Li Kan, Zhi-Fang Yuan, Guang-Zhi Ning, Bo Yang, Hai-Liang Li, Jing-Cheng Sun, Shi-Qing Feng
BACKGROUND: Anterior cruciate ligament (ACL) reconstruction is considered as the standard surgical procedure for the treatment of ACL tear. However, there is a crucial controversy in terms of whether to use autograft or allograft in ACL reconstruction. The purpose of this meta-analysis is to compare autograft with allograft for patients undergoing ACL reconstruction. METHODS: PubMed, EMBASE, and the Cochrane Library were searched for randomized controlled trials that compared autograft with allograft in ACL reconstruction up to January 31, 2016...
September 2016: Medicine (Baltimore)
Robert W Westermann, Thomas Sean Lynch, Kurt P Spindler
Since 2015, the Multicenter Orthopedic Outcomes Network (MOON) has addressed several factors associated with patient outcome after anterior cruciate ligament (ACL) injury. These factors include predictors of high grade knee laxity, the impact of meniscus treatment on joint space narrowing after surgery, graft selection, treating diabetic patients, predictors of clinically significant pain, and outcomes of patients where meniscus tears were left in situ without treatment. The presence of meniscus tears and generalized laxity predict a lax examination under anesthesia prior to surgery...
October 2016: Journal of Knee Surgery
Xiaoliang Mei, Zhenxiang Zhang, Jingwen Yang
PURPOSE: To evaluate the clinical results of a randomized controlled trial of single-layer versus double-layer bone-patellar tendon-bone (BPTB) anterior cruciate ligament (ACL) reconstruction. METHODS: Fifty-eight subjects who underwent primary ACL reconstruction with a BPTB allograft were prospectively randomized into two groups: single-layer reconstruction (n = 31) and double-layer reconstruction (n = 27). The following evaluation methods were used: clinical examination, KT-1000 arthrometer measurement, muscle strength, Tegner activity score, Lysholm score, subjective rating scale regarding patient satisfaction and sports performance level, graft retear, contralateral ACL tear, and additional meniscus surgery...
August 27, 2016: Archives of Orthopaedic and Trauma Surgery
James E Darnley, Benjamin Léger-St-Jean, Angela D Pedroza, David C Flanigan, Christopher C Kaeding, Robert A Magnussen
BACKGROUND: Anterior cruciate ligament (ACL) reconstruction with hamstring autografts less than 8.5 mm in diameter is associated with worse patient-reported outcome scores and increased risk of revision surgery compared with reconstructions performed with larger grafts. One proposed solution to small autograft harvest is to create a hybrid graft by augmenting autografts with allograft tissue to increase graft diameter. PURPOSE: To compare hybrid autograft/allograft ACL reconstruction to autograft ACL reconstruction, specifically analyzing the patient-reported outcome scores and the risk of revision surgery at 2 years postoperative...
July 2016: Orthopaedic Journal of Sports Medicine
Hong Li, Jiwu Chen, Hongyun Li, Ziying Wu, Shiyi Chen
PURPOSE: To determine whether magnetic resonance image (MRI)-based graft maturity predicts clinical and functional scores during the first year after ACL reconstruction. METHODS: Patients with unilateral ACL reconstruction were prospectively invited to participate in this study, and they were examined using a 3.0-T MRI scan at 3, 6, and 12 months after the operation. Clinical examinations were performed on the same day, including subjective functional examinations, physical examinations and the KT-1000 test...
August 2, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Shaoqi Tian, Bin Wang, Lun Liu, Yuanhe Wang, Chengzhi Ha, Qicai Li, Xu Yang, Kang Sun
BACKGROUND: Most studies on grafts for anterior cruciate ligament (ACL) reconstruction (ACLR) have been of autografts or nonirradiated allografts with a single-bundle (SB) technique. Outcome reports evaluating anatomic double-bundle (DB) ACLR with a hamstring tendon autograft versus irradiated allograft are rare. PURPOSE: To compare the clinical outcomes of arthroscopic anatomic DB ACLR with a hamstring tendon autograft versus irradiated allograft. STUDY DESIGN: Randomized controlled trial; Level of evidence, 2...
October 2016: American Journal of Sports Medicine
T Schmidt, D Grabau, J H Grotewohl, U Gohs, A Pruß, M Smith, S Scheffler, A Hoburg
PURPOSE: Allografts are frequently used for anterior cruciate ligament (ACL) reconstruction. However, due to the inherent risk of infection, a method that achieves complete sterilization of grafts is warranted without impairing their biomechanical properties. Fractionation of electron beam (FEbeam) irradiation has been shown to maintain similar biomechanical properties compared to fresh-frozen allografts (FFA) in vitro. Therefore, aim of this study was to evaluate the biomechanical properties and early remodelling of grafts that were sterilized with fractionated high-dose electron beam irradiation in an in vivo sheep model...
July 20, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Lisa Tibor, Priscilla H Chan, Tadashi T Funahashi, Ronald Wyatt, Gregory B Maletis, Maria C S Inacio
BACKGROUND: The surgical technique for anterior cruciate ligament (ACL) reconstruction has evolved as a result of improved understanding of ligament biomechanics, anatomy, device development, and failed reconstructions. Studies on surgical technique preferences have been limited to surgeon surveys, which are subject to selection and recall bias. The purpose of this study was to evaluate ACL reconstruction surgical technique and yearly revision rate trends in a community-based setting...
July 6, 2016: Journal of Bone and Joint Surgery. American Volume
Brian C Werner, Carl J Gilmore, Joshua C Hamann, Cree M Gaskin, John J Carroll, Joseph M Hart, Mark D Miller
INTRODUCTION: The purpose of this study was to present results of single-stage revision anterior cruciate ligament (ACL) reconstruction using an allograft bone dowel for isolated femoral bony deficiency. METHODS: Sixteen patients underwent single-stage revision ACL reconstruction using an allograft bone dowel for isolated femoral bony deficiency between 2007 and 2012. Twelve patients (75%) completed study visits, which included CT scans as well as completion of validated outcomes measures...
August 2016: Journal of the American Academy of Orthopaedic Surgeons
Patrick W Kane, Jocelyn Wascher, Christopher C Dodson, Sommer Hammoud, Steven B Cohen, Michael G Ciccotti
PURPOSE: The purpose of this study is to evaluate the clinical outcomes and revision rates of skeletally mature patients aged 25 years or younger who have undergone either BPTB autograft or deep-frozen, non-irradiated BPTB allograft ACL reconstruction by a single surgeon. METHODS: Two hundred and twenty-four patients aged 25 or younger at the time of surgery were identified as having a transtibial ACL reconstruction with either a BPTB autograft or deep-frozen, non-irradiated BPTB allograft by one senior surgeon (101 autografts vs...
June 27, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Michael V Murphy, Dongyi Tony Du, Wei Hua, Karoll J Cortez, Melissa G Butler, Robert L Davis, Thomas A DeCoster, Laura Johnson, Lingling Li, Cynthia Nakasato, James D Nordin, Mayur Ramesh, Michael Schum, Ann Von Worley, Craig Zinderman, Richard Platt, Michael Klompas
OBJECTIVE To determine the effect of graft choice (allograft, bone-patellar tendon-bone autograft, or hamstring autograft) on deep tissue infections following anterior cruciate ligament (ACL) reconstructions. DESIGN Retrospective cohort study. SETTING AND POPULATION Patients from 6 US health plans who underwent ACL reconstruction from January 1, 2000, through December 31, 2008. METHODS We identified ACL reconstructions and potential postoperative infections using claims data. A hierarchical stratified sampling strategy was used to identify patients for medical record review to confirm ACL reconstructions and to determine allograft vs autograft tissue implanted, clinical characteristics, and infection status...
July 2016: Infection Control and Hospital Epidemiology
Jesse Dashe, Robert L Parisien, Antonio Cusano, Emily J Curry, Asheesh Bedi, Xinning Li
AIM: To evaluate whether anterior cruciate ligament (ACL) allograft irradiation is effective for sterility without compromising graft integrity and increasing failure rate. METHODS: A literature search was conducted using PubMed, Cochrane, and Google. The following search terms were used: "Gamma irradiation AND anterior cruciate ligament AND allograft" with a return of 30 items. Filters used included: English language, years 1990-2015. There were 6 hits that were not reviewed, as there were only abstracts available...
June 18, 2016: World Journal of Orthopedics
Hiroki Takeuchi, Yasuo Niki, Hitomi Matsunari, Kazuhiro Umeyama, Hiroshi Nagashima, Hiroyuki Enomoto, Yoshiaki Toyama, Morio Matsumoto, Masaya Nakamura
BACKGROUND: Distinguishing recipient cells from donor ligament cells is difficult in the early graft-healing phase after anterior cruciate ligament (ACL) reconstruction. The ability to track the distribution and differentiation of recipient cells using genetically engineered transgenic (Tg) animals would have significant clinical and research effects on graft healing after ACL reconstruction. HYPOTHESIS: Kusabira-Orange Tg pigs may allow the tracking of recipient cells infiltrating the graft after ACL reconstruction...
September 2016: American Journal of Sports Medicine
Matthew Salminen, Matthew J Kraeutler, Kevin B Freedman, Brad S Tucker, John P Salvo, Michael G Ciccotti, Steven B Cohen
Selection of a graft type is an important decision for patients undergoing reconstructive surgery for a ligamentous injury. The purpose of this study was to determine the weight of key factors affecting patient selection of graft type for anterior cruciate ligament (ACL) reconstruction and to assess patients' knowledge of their particular graft type. We prospectively enrolled 304 patients who underwent primary ACL reconstruction. Patients filled out questionnaires at their first follow-up appointment after surgery and at least 1 year postoperatively...
May 2016: American Journal of Orthopedics
Alex C DiBartola, Joshua S Everhart, Christopher C Kaeding, Robert A Magnussen, David C Flanigan
BACKGROUND: The objective of this study was to systematically evaluate the existing literature to compare the biomechanical effects of low dose and high dose gamma irradiation on commonly used ACL allografts. METHODS: A systematic search was performed in PubMed, Cumulative Index for Nursing and Allied Health Literature (CINAHL), Cochrane Reviews, SCOPUS, and SportDiscus. Nine studies were identified that met the following inclusion criteria: 1) controlled laboratory study, 2) investigation of standard allografts for anterior cruciate ligament reconstruction (ACLR), 3) gamma irradiation (dose reported) and a negative control group, and 4) mechanical loading (results reported)...
October 2016: Knee
Shaoqi Tian, Yuanhe Wang, Bin Wang, Lun Liu, Chengzhi Ha, Qicai Li, Kang Sun
PURPOSE: To compare the clinical outcome of anatomic double-bundle (DB) anterior cruciate ligament (ACL) reconstruction with a hamstring tendon autograft versus fresh-frozen allograft. METHODS: Between January 2010 and December 2011, in a prospective randomized study, we included 157 patients who were planned to receive anatomic DB ACL reconstruction with a hamstring tendon autograft or fresh-frozen allograft. All surgeries were performed by the same senior surgeon with the DB reconstruction technique...
June 8, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
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