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https://www.readbyqxmd.com/read/27909676/anatomic-double-bundle-anterior-cruciate-ligament-reconstruction-with-a-free-quadriceps-tendon-autograft
#1
Sergiu Caterev, Dan Viorel Nistor, Adrian Todor
Anatomic double-bundle anterior cruciate ligament (ACL) reconstruction aims to restore the 2 functional bundles of the ACL in an attempt to better reproduce the native biomechanics of the injured knee and promote long-term knee health. However, this concept is not fully accepted and is not performed on a standard basis. In addition, the superiority of this technique over the conventional single-bundle technique has been questioned, especially the long-term clinical results. One of the down sides of the double-bundle reconstruction is the complexity of the procedure, with increased risks, operative time, and costs compared with the single-bundle procedure...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27909671/endoscopic-resection-of-the-tibialis-anterior-tendon-bursa
#2
Tun Hing Lui
The tibialis anterior tendon bursa is located between the tibialis anterior tendon and the medial cuneiform bone and close to the tendon insertion. Bursitis can occur as a result of excessive local friction, infection, arthritides, or direct trauma. Endoscopic resection of the bursa is indicated in case of symptomatic bursitis that is not responding to conservative treatment or infection is suspected. It is contraindicated if there is skin infection at the portal sites. The purpose of this technical note is to describe a minimally invasive approach of endoscopic resection of the tibialis anterior tendon bursa through anterior tibial tendoscopy...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27882612/the-relationship-between-geometry-of-the-extensor-mechanism-of-the-knee-and-risk-of-anterior-cruciate-ligament-injury
#3
Josh C Carter, Daniel R Sturnick, Pamela M Vacek, Michael J DeSarno, Erin C Argentieri, James R Slauterbeck, Robert J Johnson, Bruce D Beynnon
The complex inter-segmental forces that are developed across an extended knee by body weight and contraction of the quadriceps muscle group transmits an anteriorly-directed force on the tibia that strain the anterior cruciate ligament (ACL). We hypothesized that a relationship exists between geometry of the knees extensor mechanism and the risk of sustaining a non-contact ACL injury. Geometry of the extensor mechanism was characterized using MRI scans of the knees of 88 subjects that suffered their first non-contact ACL injury and 88 matched control subjects with normal knees that were on the same team...
November 24, 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/27858117/the-effect-of-anterior-cruciate-ligament-graft-rotation-on-knee-biomechanics
#4
Levent Surer, Konstantinos Michail, Murat Koken, Can Yapici, Junjun Zhu, Brandon D Marshall, Monica A Linde, Patrick Smolinski, Freddie H Fu
PURPOSE: The purpose of this study was to evaluate the effects on knee biomechanics of rotating the distal end of the bone-patellar tendon graft 90° in anatomic single-bundle (SB) anterior cruciate ligament (ACL) reconstruction with a porcine model. METHODS: Twenty (n = 20) porcine knees were evaluated using a robotic testing system. Two groups and three knee states were compared: (1) intact ACL, (2) deficient ACL and (3) anatomic SB ACL reconstruction with (a) non-rotated graft or (b) rotated graft (anatomic external fibre rotation)...
November 17, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27845481/unilateral-variation-in-extensor-digitorum-longus-muscle
#5
A Banerje, S Singh, K Raza, N Rani, S Kaler
During a routine dissection of an adult embalmed male cadaver for educational purpose in the department of anatomy at AIIMS, New Delhi, India, a rare unilateral variation of extensor digitorum longus (EDL) was found which is a muscle of anterior compartment of the leg. There was a split tendon of EDL muscle in the anterior compartment of left leg which became a common tendon in front of the ankle joint. This common tendon of EDL muscle again divided into four slips and were inserted in to the lateral four toes...
September 2016: La Clinica Terapeutica
https://www.readbyqxmd.com/read/27806877/does-the-tibial-remnant-of-the-anterior-cruciate-ligament-promote-ligamentization
#6
Byung Ill Lee, Byoung Min Kim, Duk Hwan Kho, Sai Won Kwon, Hyeung June Kim, Hyun Ryong Hwang
BACKGROUND: The purpose of this study was to clarify the difference in ligamentization between the remnant-preserving (RP) and remnant-sacrificing (RS) techniques in anterior cruciate ligament (ACL) reconstruction using magnetic resonance imaging (MRI). METHODS: A retrospective comparative study was carried out on 98 patients undergoing ACL reconstruction using either an RP (n=56) or RS (n=42) technique. MRI was performed at one of four time points postoperatively, and the signal intensity of the ACL graft was analyzed using the signal to noise quotient (SNQ) ratio and inter-bundle high signal intensity, along with an analysis of the survival rate of remnant tissue...
October 30, 2016: Knee
https://www.readbyqxmd.com/read/27798791/anterolateral-ligament-of-the-knee-shows-variable-anatomy-in-pediatric-specimens
#7
Kevin G Shea, Matthew D Milewski, Peter C Cannamela, Theodore J Ganley, Peter D Fabricant, Elizabeth B Terhune, Alexandra C Styhl, Allen F Anderson, John D Polousky
BACKGROUND: Anterior cruciate ligament (ACL) reconstruction failure rates are highest in youth athletes. The role of the anterolateral ligament in rotational knee stability is of increasing interest, and several centers are exploring combined ACL and anterolateral ligament reconstruction for these young patients. Literature on the anterolateral ligament of the knee is sparse in regard to the pediatric population. A single study on specimens younger than age 5 years demonstrated the presence of the anterolateral ligament in only one of eight specimens; therefore, much about the prevalence and anatomy of the anterolateral ligament in pediatric specimens remains unknown...
October 31, 2016: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/27780652/morphology-of-the-insertions-of-the-superficial-medial-collateral-ligament-and-posterior-oblique-ligament-using-3-dimensional-computed-tomography-a-cadaveric-study
#8
Takaaki Saigo, Goro Tajima, Shuhei Kikuchi, Jun Yan, Moritaka Maruyama, Atsushi Sugawara, Minoru Doita
PURPOSE: To describe the insertions of the superficial medial collateral ligament (sMCL) and posterior oblique ligament (POL) and their related osseous landmarks. METHODS: Insertions of the sMCL and POL were identified and marked in 22 unpaired human cadaveric knees. The surface area, location, positional relations, and morphology of the sMCL and POL insertions and related osseous structures were analyzed on 3-dimensional images. RESULTS: The femoral insertion of the POL was located 18...
October 22, 2016: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/27780511/computed-tomography-angiography-and-magnetic-resonance-imaging-performance-of-acute-segmental-single-compartment-syndrome-following-an-achilles-tendon-repair-a-case-report-and-literature-review
#9
Li-Feng Jiang, Hang Li, Zeng-Feng Xin, Li-Dong Wu
Acute compartment syndrome of the lower extremity is a serious postinjury complication that requires emergency treatment. Early diagnosis is of paramount importance for a good outcome. Four muscle compartments in the calf (anterior, lateral, deep posterior, and superficial posterior) may be individually or collectively affected. Acute segmental single-compartment syndrome is an extremely rare condition characterized by high pressure in a single compartment space with threatening of the segmental tissue viability...
October 1, 2016: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
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
#10
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/27682300/supplementary-tibial-fixation-in-anterior-cruciate-ligament-reconstruction-direct-cortical-fixation-using-spiked-washer-screw-vs-post-tie-using-washer-screw
#11
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
https://www.readbyqxmd.com/read/27660798/effect-of-calcium-phosphate-hybridized-tendon-graft-in-anatomic-single-bundle-acl-reconstruction-in-goats
#12
Hirotaka Mutsuzaki, Hiromichi Fujie, Hiromi Nakajima, Makoto Fukagawa, Shunsuke Nomura, Masataka Sakane
BACKGROUND: We previously developed a novel technique using an alternate soaking process that improves tendon-bone healing by hybridizing the tendon graft with calcium phosphate (CaP). However, the effects of the CaP-hybridized tendon graft on anatomic single-bundle anterior cruciate ligament (ACL) reconstruction remain unclear. PURPOSE: To determine the effects of CaP-hybridized tendon grafts compared with untreated tendon grafts 6 months after anatomic single-bundle ACL reconstruction using a goat model...
August 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/27659171/influence-of-sagittal-plane-malpositioning-of-the-patella-on-anterior-knee-pain-after-tibia-intramedullary-nailing
#13
Ismail Turkmen, Yavuz Saglam, Fatih Turkmensoy, Bahattin Kemah, Adnan Kara, Koray Unay
PURPOSE: Anterior knee pain (AKP) is one of the most common complications after tibia intramedullary surgery. We evaluated changes in patellar tendon length after tibia intramedullary nailing surgery using a transtendinous approach and assessed the importance of nail position in relation to the anterior tibial cortex and joint line. METHODS: Two surgeons blinded to patients' pain status measured both the knee Insall-Salvati and Caton-Deschamps indexes on 30° flexion lateral knee X-rays of 33 patients...
September 22, 2016: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/27590173/hamstring-strength-asymmetry-at-3-years-after-anterior-cruciate-ligament-reconstruction-alters-knee-mechanics-during-gait-and-jogging
#14
Matthew N Abourezk, Matthew P Ithurburn, Michael P McNally, Louise M Thoma, Matthew S Briggs, Timothy E Hewett, Kurt P Spindler, Christopher C Kaeding, Laura C Schmitt
BACKGROUND: Anterior cruciate ligament reconstruction (ACLR) using a hamstring tendon autograft often results in hamstring muscle strength asymmetry. However, the effect of hamstring muscle strength asymmetry on knee mechanics has not been reported. HYPOTHESIS: Participants with hamstring strength asymmetry would demonstrate altered involved limb knee mechanics during walking and jogging compared with those with more symmetric hamstring strength at least 2 years after ACLR with a hamstring tendon autograft...
September 2, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27577568/-pediatric-clubfoot-treatment-of-recurrence
#15
C Radler, G T Mindler
Over the last 10 years the Ponseti method has become established as the gold standard for initial treatment of clubfeet nearly worldwide. Nevertheless, there are considerable fluctuations regarding the authenticity and quality in the application of the Ponseti method. Especially the efforts to ensure and promote compliance with the foot abduction brace and subsequently the recurrence rate show great variation. As a result, we are still faced with a significant number of recurrent or residual clubfeet. In recent years it has been shown in high-volume clinics that even these can almost always be successfully treated with recasting and with minor interventions, such as anterior tibial tendon transfer and lengthening of the Achilles tendon...
October 2016: Der Orthopäde
https://www.readbyqxmd.com/read/27489416/current-practice-variations-in-the-management-of-anterior-cruciate-ligament-injuries-in-delhi
#16
Raju Vaishya, Amit Kumar Agarwal, Sachin Ingole, Vipul Vijay
BACKGROUND: The aim of this study was to determine the current practices and preferences of the arthroscopic surgeons of Delhi in the diagnosis, treatment and rehabilitation of patients with anterior cruciate ligament (ACL) injury. METHODS: It was a cross-sectional descriptive study conducted among arthroscopic surgeons of Delhi. A survey was conducted using a questionnaire that was sent either by e-mail or by direct contact to all sixty arthroscopic surgeons of Delhi...
July 2016: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/27484876/graft-position-in-arthroscopic-anterior-cruciate-ligament-reconstruction-anteromedial-versus-transtibial-technique
#17
Olcay Guler, Mahir Mahırogulları, Serhat Mutlu, Mehmet H Cercı, Ali Seker, Selami Cakmak
INTRODUCTION: When treating anterior cruciate ligament (ACL) injuries, the position of the ACL graft plays a key role in regaining postoperative knee function and physiologic kinematics. In this study, we aimed to compare graft angle, graft position in tibial tunnel, and tibial and femoral tunnel positions in patients operated with anteromedial (AM) and transtibial (TT) methods to those of contralateral healthy knees. MATERIALS AND METHODS: Forty-eight patients who underwent arthroscopic ACL reconstruction with ipsilateral hamstring tendon autograft were included...
November 2016: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/27474387/incorporation-of-hamstring-grafts-within-the-tibial-tunnel-after-anterior-cruciate-ligament-reconstruction-magnetic-resonance-imaging-of-suspensory-fixation-versus-interference-screws
#18
Philippe Colombet, Nicolas Graveleau, Stephane Jambou
BACKGROUND: The success of anterior cruciate ligament (ACL) reconstruction requires solid graft incorporation within the tunnels to enable graft remodeling. Resorbable interference screws (RIS) provide limited tendon-bone contact because much of the tunnel circumference is occupied by the screw itself, while adjustable suspensory fixation (ASF) systems provide larger contact zones, which favor ligamentization. PURPOSE: To evaluate ligamentization of a 4-strand semitendinosus (4ST) graft fixed with ASF compared with RIS within the tibial bone tunnel at 6 months postoperatively using magnetic resonance imaging (MRI)...
November 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27466222/irradiated-hamstring-tendon-allograft-versus-autograft-for-anatomic-double-bundle-anterior-cruciate-ligament-reconstruction-midterm-clinical-outcomes
#19
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
https://www.readbyqxmd.com/read/27435334/acute-mcl-and-acl-injuries-first-results-of-minimal-invasive-mcl-ligament-bracing-with-combined-acl-single-bundle-reconstruction
#20
A Ateschrang, S Döbele, T Freude, U Stöckle, S Schröter, T M Kraus
BACKGROUND: There is an on-going discussion whether to operatively treat combined grade II and III lesions of the medial collateral ligament (MCL) with anterior cruciate ligament (ACL) in the acute phase rather than conservative treatment of the MCL lesion with a delayed unitary ACL replacement. Another issue is the question how to technically address these MCL lesions. The aim of this study was, therefore, to analyze the results of simultaneous ACL replacement (hamstrings) in a single-bundle technique with a simultaneous MCL ligament bracing procedure...
September 2016: Archives of Orthopaedic and Trauma Surgery
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