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patellar tendon stabilization

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https://www.readbyqxmd.com/read/28616652/effects-of-initial-graft-tension-on-femoral-tunnel-widening-after-anatomic-anterior-cruciate-ligament-reconstruction-using-a-bone-patellar-tendon-bone-graft
#1
Shuji Taketomi, Hiroshi Inui, Keitaro Tahara, Nobuyuki Shirakawa, Sakae Tanaka, Takumi Nakagawa
INTRODUCTION: The effects of initial graft tension upon tunnel widening (TW) following anatomic anterior cruciate ligament (ACL) reconstruction have not been elucidated. The purpose of this study was to retrospectively investigate the effect of two different graft-tensioning protocols upon femoral TW following anatomic ACL reconstruction using a bone-patellar tendon-bone (BPTB) graft and a three-dimensional (3D) computed tomography (CT) model. METHODS: Forty-three patients who underwent isolated ACL reconstruction using BPTB grafts were included in this study...
June 14, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28559102/biomechanical-characteristics-of-the-anatomic-rectangular-tunnel-anterior-cruciate-ligament-reconstruction-with-a-bone-patellar-tendon-bone-graft
#2
Tatsuo Mae, Konsei Shino, Ryo Iuchi, Kazutaka Kinugasa, Ryohei Uchida, Shigeto Nakagawa, Hideki Yoshikawa, Ken Nakata
PURPOSE: To clarify 1) the force sharing between two portions of BTB graft in anatomic rectangular tunnel (ART) reconstruction and 2) the knee stability in ART technique under anterior tibial load. METHODS: Eleven fresh cadaveric knees were used. First, anterior-posterior (A-P) laxity was measured with Knee Laxity Tester(®) in response to 134 N of A-P tibial load at 20° on the normal knees. Then ART ACL reconstruction was performed with a BTB graft. For graft, the patellar bone plug and tendon portion was longitudinally cut into half as AM and PL portions...
May 27, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28458784/evaluating-the-functional-results-and-complications-of-autograft-vs-allograft-use-for-reconstruction-of-the-anterior-cruciate-ligament-a-systematic-review
#3
REVIEW
Ojas Pujji, Nikita Keswani, Naomi Collier, Marion Black, Lucy Doos
The aim of our review is to identify the reconstruction technique that has a superior functional outcome and decreased number of complications for the anterior cruciate ligament (ACL). We have divided our review into 2 sections. Our primary question evaluates the functional results and complications of autografts compared to allografts for ACL reconstruction. Our subsidiary question evaluates the functional results and complications of bone-patellar tendon-bone (BPTB) autografts compared to hamstring tendon autografts...
February 20, 2017: Orthopedic Reviews
https://www.readbyqxmd.com/read/28349206/impingement-of-the-patellar-component-against-the-tibial-post-after-posterior-stabilized-and-constrained-tka-a-pilot-study
#4
Yukihide Minoda, Ryo Sugama, Yoichi Ohta, Hiroaki Nakamura
INTRODUCTION: Patella-post impingement (PPI), contact of the patellar component with the tibial post, occurs during deep knee flexion after posterior stabilized total knee arthroplasty (TKA). PPI can cause anterior knee pain, increased patellar pressure, wear of the polyethylene patellar component and tibial post, and poor range of motion. There have been no reports on the relationship between PPI and tibial post design. The aim of this study was to compare different tibial post designs with regard to PPI incidence...
March 27, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28328560/surgical-treatment-of-congenital-and-obligatory-dislocation-of-the-patella-in-children
#5
Ronen Sever, Michael Fishkin, Yoram Hemo, Shlomo Wientroub, Moshe Yaniv
BACKGROUND: Congenital (fixed) dislocations and obligatory (habitual) patellar dislocations represent a complex clinical and surgical challenge. Numerous treatment options, offering different perspectives, and surgical solutions are reported in the literature.We implemented the surgical technique principles, originally described by Stanisavljevic, for congenital (fixed) and obligatory (habitual) patellar dislocations, with slight modifications. METHODS: We retrospectively evaluated the results of group of 12 patients (15 knees), operated between the years 2002 and 2013...
March 21, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28273424/is-quadriceps-tendon-autograft-a-better-choice-than-hamstring-autograft-for-anterior-cruciate-ligament-reconstruction-a-comparative-study-with-a-mean-follow-up-of-3-6-years
#6
Etienne Cavaignac, Benoit Coulin, Philippe Tscholl, Nik Nik Mohd Fatmy, Victoria Duthon, Jacques Menetrey
BACKGROUND: The quadriceps tendon (QT) autograft is known as an effective graft for anterior cruciate ligament (ACL) reconstruction and shows a similar functional outcome to the bone-patellar tendon-bone (BPTB) in randomized controlled trials, with a lesser incidence of complications. Up until now, only 2 studies have compared QT to hamstring tendon (HT) autograft. HYPOTHESIS: The functional outcomes of the QT technique are at least as good as those of the HT technique, with the same morbidity...
May 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28251262/one-stage-revision-acl-reconstruction-after-primary-acl-double-bundle-reconstruction-is-bone-patella-tendon-bone-autograft-reliable
#7
Tomohiro Tomihara, Yusuke Hashimoto, Masatoshi Taniuchi, Junsei Takigami, Changhun Han, Nagakazu Shimada
PURPOSE: The purpose of this study is to assess the results of revision anterior cruciate ligament (ACL) reconstruction after the failure of primary ACL double bundle reconstruction (ACL-DBR). METHODS: Twenty-two knees in 22 patients (group R) that underwent ACL revision surgery using bone-patellar tendon-bone (BTB) autograft after the failure of primary ACL-DBR were included in this study. Intraoperative findings and postoperative knee laxity and clinical outcomes in group R were assessed...
May 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28178094/reconstruction-of-symptomatic-congenital-anterior-cruciate-ligament-insufficiency
#8
Brant C Sachleben, Adam Y Nasreddine, Jeffrey J Nepple, Frances A Tepolt, James R Kasser, Mininder S Kocher
BACKGROUND: Hypoplasia or congenital absence of the anterior cruciate ligament (ACL) is a rare disorder occurring in ∼1 in every 6000 births. Although some patients with hypoplasia or agenesis of the ACL may not complain of instability, others desire to participate in more demanding activities that require the stability of a competent ACL. There are limited reports of surgical treatment of this patient population. The purpose of this study was to report ACL reconstruction in a case series of patients with symptomatic congenital ACL deficiency...
February 7, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28149400/the-effect-of-different-decline-angles-on-the-biomechanics-of-double-limb-squats-and-the-implications-to-clinical-and-training-practice
#9
Jim Richards, James Selfe, Jonathan Sinclair, Karen May, Gavin Thomas
Bilateral decline squatting has been well documented as a rehabilitation exercise, however, little information exists on the optimum angle of decline. The aim of this study was to determine the ankle and knee angle, moments, the patellofemoral joint load, patellar tendon load and associated muscle activity while performing a double limb squat at different decline angles and the implications to rehabilitation. Eighteen healthy subjects performed double limb squats at 6 angles of declination: 0, 5, 10, 15, 20 and 25 degrees...
September 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28118233/a-novel-functional-correction-method-for-habitual-patellar-dislocation-using-autologous-hamstring-tendon-a-case-report
#10
Yasunari Ikuta, Nobuo Adachi, Masataka Deie, Masakazu Ishikawa, Atsuo Nakamae, Mitsuo Ochi
Habitual patellar dislocation is an uncommon condition. In this case, a patient demonstrated lateral patellar dislocation in the middle or terminal range of flexion. A functional correction of the patella was devised so that the fixation site of the autologous graft on the femur was able to stabilize the patella selectively during the middle or terminal range of flexion. It is not the anatomical medial patellofemoral ligament attachment of the femur that is essential, but that a relevant fixation point on the femur should be sought in each patient to obtain stabilization of the patella to reverse habitual patellar dislocation...
January 21, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28056513/is-an-anterolateral-ligament-reconstruction-required-in-acl-reconstructed-knees-with-associated-injury-to-the-anterolateral-structures-a-robotic-analysis-of-rotational-knee-stability
#11
Frank R Noyes, Lauren E Huser, Darin Jurgensmeier, James Walsh, Martin S Levy
BACKGROUND: The effect of an anterolateral ligament (ALL) reconstruction on rotational knee stability and corresponding anterior cruciate ligament (ACL) graft forces using multiple knee loading conditions including the pivot-shift phenomenon has not been determined. PURPOSE: First, to determine the rotational stability and ACL graft forces provided by an anatomic bone-patellar tendon-bone ACL reconstruction in the ACL-deficient knee alone and with an associated ALL/iliotibial band (ITB) injury...
April 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28040335/outcome-of-patellar-tendon-versus-4-strand-hamstring-tendon-autografts-for-anterior-cruciate-ligament-reconstruction-a-systematic-review-and-meta-analysis-of-prospective-randomized-trials
#12
Michael Y K Chee, Yongsheng Chen, Christopher Jon Pearce, Diarmuid P Murphy, Lingaraj Krishna, James H P Hui, Wilson E J Wang, Bee Choo Tai, Abhijeet A Salunke, Xi Chen, Zackary K H Chua, Kandiah Satkunanantham
PURPOSE: To compare clinical outcomes of anterior cruciate ligament (ACL) reconstruction and investigate whether the clinical results of 4-strand hamstring tendon (HT) reconstruction are still inferior to that of the patellar tendon (PT). METHODS: We performed a comprehensive systematic review and meta-analysis of the English literature on PubMed, Scopus, Web of Science, and the Cochrane register for papers that compared clinical outcomes of PT versus HT for ACL reconstruction...
February 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27810431/clinical-results-after-treatment-for-bidirectional-patellar-subluxation-minimum-2-years-follow-up
#13
Michael Saper, Candice Brady, Robert Zondervan, David Shneider
BACKGROUND: We describe the preliminary clinical results of a patellar stabilization technique to treat bidirectional patellar subluxation (BPS). METHODS: Patients: six patients (one male, five females; mean age 30.2years) underwent this procedure with a minimum of 24months follow-up. Patients were assessed for clinical instability, patellar complications, and need for revision surgery. Patient functional outcomes were evaluated using the criteria of Crosby and Insall and the Kujala Anterior Knee Pain Scale at the time of final follow-up...
December 2016: Knee
https://www.readbyqxmd.com/read/27717747/lack-of-stability-at-more-than-12-months-of-follow-up-after-anterior-cruciate-ligament-reconstruction-using-all-inside-quadruple-stranded-semitendinosus-graft-with-adjustable-cortical-button-fixation-in-both-femoral-and-tibial-sides
#14
G Bressy, V Brun, A Ferrier, D Dujardin, N Oubaya, N Morel, N Fontanin, X Ohl
INTRODUCTION: The use of the semitendinosus tendon alone for anterior cruciate ligament reconstruction keeps the gracilis muscle intact and decreases anterior pain in comparison with the use of the patellar tendon. Recently, Lubowitz described a new all-inside technique with an ST4 tendon fixed with a cortical button in both femoral and tibial sides. We hypothesized that this type of graft with cortical button fixation provides well-controlled residual anterior tibial translation (<3mm)...
October 4, 2016: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/27709044/anterior-cruciate-ligament-reconstruction-with-bone-patellar-tendon-bone-autograft-and-a-medial-parapatellar-portal
#15
Walter Kim, Peter McQueen, Jonathan N Watson, Mark R Hutchinson
Anterior cruciate ligament (ACL) reconstruction is one of the most extensively studied surgical procedures in orthopaedics. The importance of this ligament for knee function and stability has been widely studied. For athletes who participate in activities involving cutting, twisting, and running, surgical reconstruction of the ACL has become the standard of care. However, there is much debate regarding the techniques involved in ACL reconstruction, including graft choice, technique of drilling the femoral tunnel, and single- versus double-bundle reconstruction...
August 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27570784/biomechanical-evaluation-of-posterior-cruciate-ligament-reconstruction-with-quadriceps-versus-achilles-tendon-bone-block-allograft
#16
Brian Forsythe, Marc S Haro, Ljiljana Bogunovic, Michael J Collins, Thomas A Arns, Katie J Trella, Elizabeth F Shewman, Nikhil N Verma, Bernard R Bach
BACKGROUND: Long-term studies of posterior cruciate ligament (PCL) reconstruction suggest that normal stability is not restored in the majority of patients. The Achilles tendon allograft is frequently utilized, although recently, the quadriceps tendon has been introduced as an alternative option due to its size and high patellar bone density. PURPOSE/HYPOTHESIS: The purpose of this study was to compare the biomechanical strength of PCL reconstructions using a quadriceps versus an Achilles allograft...
August 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/27568219/double-layer-versus-single-layer-bone-patellar-tendon-bone-anterior-cruciate-ligament-reconstruction-a-prospective-randomized-study-with-3-year-follow-up
#17
RANDOMIZED CONTROLLED TRIAL
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...
December 2016: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/27544274/credibility-and-quality-of-meta-analyses-addressing-graft-choice-in-anterior-cruciate-ligament-reconstruction-a-systematic-review
#18
REVIEW
Adrian Kurz, Nathan Evaniew, Marco Yeung, Kristian Samuelsson, Devin Peterson, Olufemi R Ayeni
PURPOSE: This systematic review examined the methodological credibility and quality of reporting of all meta-analyses which have compared bone-patellar tendon-bone (BPTB) versus hamstring tendon (HT) for anterior cruciate ligament (ACL) reconstruction (ACLR). METHODS: EMBASE, MEDLINE, and The Cochrane Library were systematically searched, and two reviewers independently assessed eligibility, credibility according to the Users' Guide to medical literature, and completeness of reporting according to the preferred reporting items for systematic review and meta-analyses (PRISMA) checklist...
February 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27529600/repair-of-acute-patellar-tendon-rupture-augmented-with-strong-sutures
#19
Hidenori Otsubo, Tomoaki Kamiya, Tomoyuki Suzuki, Miki Kuroda, Yasutoshi Ikeda, Takashi Matsumura, Toshihiko Yamashita
Rupture of the patellar tendon is an uncommon injury that requires acute surgical repair to restore the function of the knee. Multiple techniques for repair have been described in the literature. Complications with these repair techniques include rerupture and extensor lag caused by gap formation at the site of repair. Thus, many surgeons have suggested augmenting the standard repair. Several methods of augmentation have been described each with disadvantages. The purpose of this article was to present our case series of six patients with acute patella tendon ruptures treated by a novel procedure using strong sutures...
May 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/27492972/twenty-year-outcome-of-a-longitudinal-prospective-evaluation-of-isolated-endoscopic-anterior-cruciate-ligament-reconstruction-with-patellar-tendon-or-hamstring-autograft
#20
Simon Michael Thompson, Lucy J Salmon, Alison Waller, James Linklater, Justin P Roe, Leo A Pinczewski
BACKGROUND: Long-term prospective studies of isolated endoscopic anterior cruciate ligament (ACL) reconstruction are limited and may include confounding factors. PURPOSE: This study aimed to compare the outcomes of isolated ACL reconstruction using the patellar tendon (PT) autograft and the hamstring (HT) autograft in 180 patients over 20 years. STUDY DESIGN: Cohort study; Level of evidence, 2. METHODS: A total of 180 participants undergoing isolated ACL reconstruction between 1993 and 1994 were prospectively recruited...
December 2016: American Journal of Sports Medicine
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