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ACL reconstruction and quadriceps

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https://www.readbyqxmd.com/read/28918506/young-athletes-after-acl-reconstruction-with-quadriceps-strength-asymmetry-at-the-time-of-return-to-sport-demonstrate-decreased-knee-function-1%C3%A2-year-later
#1
Matthew P Ithurburn, Alex R Altenburger, Staci Thomas, Timothy E Hewett, Mark V Paterno, Laura C Schmitt
PURPOSE: Quadriceps femoris (QF) strength deficits at return-to-sport (RTS) after ACL reconstruction (ACLR) contribute to decreased knee function at the same time point. However, the impact of QF strength at RTS on longitudinal function has not been examined. The purpose of this study was to test the hypothesis that young athletes after ACLR with QF strength asymmetry at RTS would demonstrate decreased knee-related function and lower proportions of functional recovery at 1 year post-RTS compared to young athletes following ACLR with nearly symmetric QF strength at RTS...
September 16, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28903010/effect-of-loading-on-in-vivo-tibiofemoral-and-patellofemoral-kinematics-of-healthy-and-acl-reconstructed-knees
#2
Jarred M Kaiser, Michael F Vignos, Richard Kijowski, Geoffrey Baer, Darryl G Thelen
BACKGROUND: Although knees that have undergone anterior cruciate ligament reconstruction (ACLR) often exhibit normal laxity on clinical examination, abnormal kinematic patterns have been observed when the joint is dynamically loaded during whole body activity. This study investigated whether abnormal knee kinematics arise with loading under isolated dynamic movements. HYPOTHESIS: Tibiofemoral and patellofemoral kinematics of ACLR knees will be similar to those of the contralateral uninjured control knee during passive flexion-extension, with bilateral differences emerging when an inertial load is applied...
September 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28899822/early-strength-recovery-after-anterior-cruciate-ligament-reconstruction-using-the-fascia-lata
#3
Gregory Haillotte, Alexandre Hardy, Benjamin Granger, Thibaut Noailles, Fréderic Khiami
INTRODUCTION: After undergoing anterior cruciate ligament (ACL) reconstruction, patients must recover at least 80% of their hamstring and quadriceps strength to be able to return to sports without risk to the graft. Harvesting of the patellar tendon leads to large deficits in quadriceps strength, while harvesting the hamstring tendons leads to large deficits in hamstring strength. However, there are no published studies on the strength deficit after ACL reconstruction with the fascia lata...
September 9, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28872396/whole-body-vibration-on-performance-of-quadriceps-after-acl-reconstruction-a-blinded-randomized-controlled-trial
#4
Karinna Sonálya Aires da Costa, Daniel Tezoni Borges, Liane de Brito Macedo, Caio Alano de Almeida Lins, Jamilson Simões Brasileiro
CONTEXT: Whole body vibration (WBV) has been widely used in clinical and sport practice. These devices produce constant vibrations originating symmetrical waves that move along the vertical axis. It is suggested that mechanical stimuli produced by high vibration can be an alternative to improve neuromuscular performance and balance in different populations. However, there is still a lack of consensus in the literature regarding neurophysiological responses in the skeletal muscle immediately after the use of WBV, specifically in individuals subjected to ACL reconstruction...
September 5, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28840325/tunnel-widening-after-single-versus-double-bundle-anterior-cruciate-ligament-reconstruction-a-randomized-8-year-follow-up-study
#5
S Beyaz, Ü Ö Güler, Ş Demir, S Yüksel, B M Çınar, G Özkoç, S Akpınar
OBJECTIVE: The purpose of this study was to compare the single-bundle (SB) and double-bundle (DB) surgical techniques for anterior cruciate ligament (ACL) reconstruction with regard to tunnel widening, isokinetic muscle strength, and clinical outcomes over an 8-year follow-up period. METHODS: This study included 31 patients with ACL injury who underwent ACL reconstruction via the SB (n = 16) or the DB (n = 15) technique. Isokinetic and concentric strength measurements of the quadriceps and hamstring muscles were conducted at postoperative 6 months and postoperative 8 years, and 3D-CT scans of the knee joints were performed on the 2nd, 3rd and 6th month, and the 8th year postoperatively...
August 24, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28822999/preservation-of-remnant-with-poor-synovial-coverage-has-no-beneficial-effect-over-remnant-sacrifice-in-anterior-cruciate-ligament-reconstruction
#6
Bo Hyun Kim, Joong Il Kim, Osung Lee, Ki Woung Lee, Myung Chul Lee, Hyuk Soo Han
PURPOSE: The purpose of the study was to evaluate the influence of synovial coverage of the remnant on clinical outcomes and graft healing in anterior cruciate ligament (ACL) reconstruction. METHODS: Seventy-five patients who underwent second-look arthroscopy after a single-bundle ACL reconstruction using autologous quadriceps tendon graft were included. The patients were divided into two groups according to whether the remnant was preserved (group P, n = 42) or sacrificed (group S, n = 33)...
August 19, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28810991/posterior-cruciate-ligament-injuries-associated-with-military-survival-swim-training
#7
Michael S Crowell, John S Mason, Matthew A Posner, Chad A Haley
OBJECTIVES: Posterior cruciate ligament (PCL) injuries are relatively common injuries associated with athletic activities and high-energy trauma. Posterolateral corner (PLC) injuries frequently accompany injury to the PCL. Diagnosis can be challenging and requires a comprehensive history and physical examination. Patients frequently report vague, nonspecific symptoms and the mechanism of injury is often useful in localizing injured structures. Two of the more common mechanisms for PCL injury include a direct blow to the proximal anterior tibia with the knee flexed, as well as a significant knee hyperextension injury...
July 2017: Military Medicine
https://www.readbyqxmd.com/read/28791612/acl-rehabilitation-progression-where-are-we-now
#8
REVIEW
John T Cavanaugh, Matthew Powers
PURPOSE OF REVIEW: With the increase of publications available to the rehabilitation specialist, there is a need to identify a progression to safely progress the patient through their post-operative ACL reconstruction rehabilitation program. Rehabilitation after ACL reconstruction should follow an evidence-based functional progression with graded increase in difficulty in activities. RECENT FINDINGS: Clinicians should be discouraged not to use strict time frames and protocols when treating patients following ACL reconstruction...
August 8, 2017: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/28714825/quadriceps-and-patient-reported-function-in-acl-reconstructed-patients-a-principal-component-analysis
#9
Grant E Norte, Jay N Hertel, Susan A Saliba, David R Diduch, Joseph M Hart
CONTEXT: Assessment of physical function for individuals after ACL reconstruction (ACL-R) is complex and warrants the use of diverse evaluation strategies. To maximize the efficiency of assessment, there is a need to identify tests that provide the most meaningful information about this population. OBJECTIVE: To investigate underlying constructs of quadriceps muscle function that uniquely describe aspects of performance in patients after ACL-R, and establish clinical thresholds for measures able to classify patients with and without ACL-R...
July 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28654440/quadriceps-tendon-bone-or-patellar-tendon-bone-autografts-when-reconstructing-the-anterior-cruciate-ligament-a-meta-analysis
#10
Osman Riaz, Adeel Aqil, Ashim Mannan, Fahad Hossain, Mubusher Ali, Gautam Chakrabarty, Graham Radcliffe
OBJECTIVE: We aimed to quantitatively assess the outcomes of studies, comparing the use of Bone-patellar tendon-bone (BPTB) and the quadriceps tendon-bone (QTB) autografts when reconstructing the anterior cruciate ligament (ACL). DATA SOURCES: MEDLINE, Embase, and CINAHL databases were searched for relevant articles published between January 1980 and January 2015 for the purpose of identifying studies comparing BPTB and QTB autografts for ACL reconstruction. Included studies were assessed regarding their methodological quality before analysis...
June 22, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/28568474/the-biomechanical-effect-of-tunnel-placement-on-acl-graft-forces-in-double-bundle-acl-reconstruction-a-3d-computational-simulation
#11
Nathan H Varady, Willem A Kernkamp, Jingsheng Li, Lianxin Wang, Hiroshi Koga, Peter Asnis, Guoan Li
BACKGROUND: The posterolateral (PL) graft experiences a high failure rate in anterior cruciate ligament double-bundle (DB) reconstruction. It is hypothesized that tunnel positions could dramatically affect the graft forces. METHODS: A validated computational model was used to simulate DB reconstruction with various femoral PL tunnel locations (8-11 mm center-center tunnel spacing). Graft fixation was simulated at both 0° and 30°. Knee biomechanics were examined with the knee under a 134 N anterior load and 400 N quadriceps load at 0°, 30°, 60°, and 90° of flexion...
June 1, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/28566389/does-the-type-of-graft-affect-the-outcome-of-revision-anterior-cruciate-ligament-reconstruction-a-meta-analysis-of-32-studies
#12
REVIEW
A Grassi, M Nitri, S G Moulton, G M Marcheggiani Muccioli, A Bondi, M Romagnoli, S Zaffagnini
AIMS: Our aim was to perform a meta-analysis of the outcomes of revision anterior cruciate ligament (ACL) reconstruction, comparing the use of different types of graft. MATERIALS AND METHODS: A search was performed of Medline and Pubmed using the terms "Anterior Cruciate Ligament" and "ACL" combined with "revision", "re-operation" and "failure". Only studies that reported the outcome at a minimum follow-up of two years were included. Two authors reviewed the papers, and outcomes were subdivided into autograft and allograft...
June 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28477270/there-is-no-difference-between-quadriceps-and-hamstring-tendon-autografts-in-primary-anterior-cruciate-ligament-reconstruction-a-2-year-patient-reported%C3%A2-outcome-study
#13
Armin Runer, Guido Wierer, Elmar Herbst, Caroline Hepperger, Mirco Herbort, Peter Gföller, Christian Hoser, Christian Fink
PURPOSE: Graft choice for anterior cruciate ligament (ACL) reconstruction is crucial, however the optimal graft source remains a topic of controversy. The purpose of this study is to compare subjective and functional patient-reported outcomes (PRO) after single-bundle ACL reconstruction using quadriceps tendon (QT) or hamstring tendon (HT) autografts for single-bundle ACL reconstruction. We hypothesize that there is no difference in patient-reported functional outcomes after ACL reconstruction using either HT- or QT autograft...
May 5, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28445290/efficacy-of-quadriceps-vastus-medialis-dry-needling-in-a-rehabilitation-protocol-after-surgical-reconstruction-of-complete-anterior-cruciate-ligament-rupture
#14
RANDOMIZED CONTROLLED TRIAL
Jorge Velázquez-Saornil, Beatriz Ruíz-Ruíz, David Rodríguez-Sanz, Carlos Romero-Morales, Daniel López-López, Cesar Calvo-Lobo
BACKGROUND: Several new rehabilitation modalities have been proposed after anterior cruciate ligament (ACL) reconstruction. Among these, trigger point dry needling (TrP-DN) might be useful in the treatment of myofascial pain syndrome associated with ACL reconstruction to reduce pain intensity, increase knee flexion range and modify the mechanical properties of the quadriceps muscle during late-stage rehabilitation. To date, this is the first randomized clinical trial to support the use of TrP-DN in the early rehabilitation process after ACL reconstruction...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28402758/the-graft-bending-angle-can-affect-early-graft-healing-after-anterior-cruciate-ligament-reconstruction-in-vivo-analysis-with-2-years-follow-up
#15
Yasutaka Tashiro, Tom Gale, Vani Sundaram, Kanto Nagai, James J Irrgang, William Anderst, Yasuharu Nakashima, Scott Tashman, Freddie H Fu
BACKGROUND: A high graft bending angle (GBA) after anterior cruciate ligament (ACL) reconstruction has been suggested to cause stress on the graft. Nevertheless, evidence about its effect on graft healing in vivo is limited. HYPOTHESIS: The signal intensity on magnetic resonance imaging (MRI) would be higher in the proximal region of the ACL graft, and higher signals would be correlated to a higher GBA. STUDY DESIGN: Descriptive laboratory study...
July 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28378501/anterior-cruciate-ligament-reconstruction-does-not-induce-further-gamma-loop-abnormalities-on-the-intact-side-of-the-quadriceps-femoris-a-longitudinal-study
#16
Y Konishi
This study aimed to investigate the effect of surgery on the gamma loop of the quadriceps on the side with an intact knee in patients with anterior cruciate ligament (ACL) injuries. We compared longitudinally the response of alpha motor neurons to vibration stimulation of the quadriceps on the side with an intact knee before and after ACL reconstruction. To evaluate alpha motor neuron response, we measured the maximal knee extension strength and integrated electromyography of the vastus medialis, vastus lateralis, and rectus femoris...
April 4, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/28363421/the-effect-of-femoral-nerve-block-on-quadriceps-strength-in-anterior-cruciate-ligament-reconstruction-a-systematic-review
#17
REVIEW
Katherine R Swank, Alex C DiBartola, Joshua S Everhart, Christopher C Kaeding, Robert A Magnussen, David C Flanigan
PURPOSE: To assess the isokinetic, functional, and patient-reported outcomes of femoral nerve block (FNB) compared with traditional multimodal anesthesia for FNB in anterior cruciate ligament (ACL) reconstruction. METHODS: A systematic search of PubMed, Scopus, Cumulative Index to Nursing and Allied Health Literature, Cochrane Reviews, and Google Scholar was conducted according to the 2009 Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines...
May 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28355978/limb-symmetry-indexes-can-overestimate-knee-function-after-anterior-cruciate-ligament-injury
#18
Elizabeth Wellsandt, Mathew J Failla, Lynn Snyder-Mackler
Study Design Prospective cohort. Background The high risk of second anterior cruciate ligament (ACL) injuries after return to sport highlights the importance of return-to-sport decision making. Objective return-to-sport criteria frequently use limb symmetry indexes (LSIs) to quantify quadriceps strength and hop scores. Whether using the uninvolved limb in LSIs is optimal is unknown. Objectives To evaluate the uninvolved limb as a reference standard for LSIs utilized in return-to-sport testing and its relationship with second ACL injury rates...
May 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28324151/higher-hamstring-to-quadriceps-isokinetic-strength-ratio-during-the-first-post-operative-months-in-patients-with-quadriceps-tendon-compared-to-hamstring-tendon-graft-following-acl-reconstruction
#19
Felix Fischer, Christian Fink, Elmar Herbst, Christian Hoser, Caroline Hepperger, Cornelia Blank, Peter Gföller
PURPOSE: The aim of this study was to compare isokinetic quadriceps and hamstring muscle strength in patients following anterior cruciate ligament (ACL) reconstruction who received either hamstring (HT) or quadriceps (QT) tendon autografts at two time intervals within the first year after surgery. METHODS: One hundred twenty-four patients, 81 males (age 22.0 ± 6.2 years) and 43 females (age 20.9 ± 8.7 years), participated in this study. ACL reconstruction was performed with either quadriceps tendon autografts (QT; n = 61) or hamstring tendon autografts (HT; n = 63)...
March 21, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28290752/mri-based-assessment-of-lower-extremity-muscle-volumes-in-patients-before-and-after-acl-reconstruction
#20
Grant E Norte, Katherine R Knaus, Chris Kuenze, Geoffrey G Handsfield, Craig H Meyer, Silvia S Blemker, Joseph M Hart
CONTEXT: Study of muscle volumes in patients after anterior cruciate ligament (ACL) injury and reconstruction (ACL-R) is largely limited to cross-sectional assessment of the thigh musculature, which may inadequately describe post-traumatic and post-surgical muscle function. No studies have prospectively examined the influence of ACL injury and reconstruction on lower extremity muscle volumes. OBJECTIVE: Assess magnetic resonance imaging (MRI) derived lower extremity muscle volumes, and quantify quadriceps strength and activation in patients following ACL injury and reconstruction...
March 14, 2017: Journal of Sport Rehabilitation
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