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https://www.readbyqxmd.com/read/28095169/examination-of-knee-morphology-after-secondary-ipsilateral-acl-injury-compared-to-those-that-have-not-reinjured-a-preliminary-study
#1
Jessica E Digiacomo, Riann M Palmieri-Smith, John A Redmann, Lindsey K Lepley
CONTEXT: Modifiable and non-modifiable risk factors have been identified for sustaining a primary ACL injury, however less research is available examining risk factors for a second injury. Identifying whether bony morphological factors are different (or more exaggerated) among those that experience a secondary ACL injury is critical to understanding if non-modifiable risk factors are associated with a second injury. OBJECTIVE: To identify if bony morphology is different among those that experience a secondary ACL re-injury as compared to ACL individuals that do not...
January 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28095108/the-relationship-between-2d-knee-valgus-angle-during-single-leg-squat-single-leg-land-and-drop-jump-screening-tests
#2
Allan Munro, Lee Herrington, Paul Comfort
CONTEXT: Anterior Cruciate Ligament (ACL) and Patellofemoral Joint (PFJ) injuries are a significant problem among female athletes. A number of screening tasks have been used in the literature to identify those at greatest risk of injury. To date, no study has examined the relationship in two-dimensional (2D) knee valgus between common screening tasks to determine whether individuals exhibit similar movement patterns across tasks. OBJECTIVE: to establish whether frontal plane projection angle (FPPA) during the single leg squat (SLS), single leg land (SLL) and drop jump (DJ) are related...
January 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28095091/factors-informing-fear-of-reinjury-after-anterior-cruciate-ligament-reconstruction
#3
Cheryl A Ross, Amanda Clifford, Quinette A Louw
OBJECTIVE: Fear of reinjury is associated with cessation of sport after anterior cruciate ligament (ACL) reconstruction despite normal postoperative knee function. The objective of this study is to describe factors informing athletes' experience of fear of reinjury post ACL reconstruction, in athletes who cited fear as the sole reason for not returning to their pre-injury level of sport. DESIGN: Mixed-methods study design of qualitative and a preliminary quantitative component...
January 17, 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28090444/bone-marrow-edema-like-lesions-bmels-are-associated-with-higher-t1%C3%AF-and-t2-values-of-cartilage-in-anterior-cruciate-ligament-acl-reconstructed-knees-a-longitudinal-study
#4
Jingshan Gong, Valentina Pedoia, Luca Facchetti, Thomas M Link, C Benjamin Ma, Xiaojuan Li
BACKGROUND: To evaluate the longitudinal changes of bone marrow edema-like lesions (BMELs) in patients after anterior cruciate ligament (ACL) reconstruction and to investigate the effect of BMELs on cartilage matrix composition changes measured using MR T1ρ and T2 mapping. METHODS: Patients with acute ACL tear were enrolled in a prospective study. MR imaging was performed at baseline (before surgeries) and at 6-month, 1-year and 2-year after ACL reconstruction...
December 2016: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28090441/principal-component-analysis-t1%C3%AF-voxel-based-relaxometry-of-the-articular-cartilage-a-comparison-of-biochemical-patterns-in-osteoarthritis-and-anterior-cruciate-ligament-subjects
#5
Valentina Pedoia, Colin Russell, Allison Randolph, Xiaojuan Li, Sharmila Majumdar
BACKGROUND: Quantitative MR, including T1ρ mapping, has been extensively used to probe early biochemical changes in knee articular cartilage of subjects with osteoarthritis (OA) and others at risk for cartilage degeneration, such as those with anterior cruciate ligament (ACL) injury and reconstruction. However, limited studies have been performed aimed to assess the spatial location and patterns of T1ρ. In this study we used a novel voxel-based relaxometry (VBR) technique coupled with principal component analysis (PCA) to extract relevant features so as to describe regional patterns and to investigate their similarities and differences in T1ρ maps in subjects with OA and subjects six months after ACL reconstruction (ACLR)...
December 2016: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/28089224/loading-of-the-medial-meniscus-in-the-acl-deficient-knee-a-multibody-computational-study
#6
Trent M Guess, Swithin Razu
The menisci of the knee reduce tibiofemoral contact pressures and aid in knee lubrication and nourishment. Meniscal injury occurs in half of knees sustaining anterior cruciate ligament injury and the vast majority of tears in the medial meniscus transpire in the posterior horn region. In this study, computational multibody models of the knee were derived from medical images and passive leg motion for two female subjects. The models were validated against experimental measures available in the literature and then used to evaluate medial meniscus contact force and internal hoop tension...
January 11, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/28078610/optimization-of-the-return-to-sport-paradigm-after-anterior-cruciate-ligament-reconstruction-a-critical-step-back-to-move-forward
#7
REVIEW
Bart Dingenen, Alli Gokeler
Athletes who have sustained an anterior cruciate ligament (ACL) injury often opt for an ACL reconstruction (ACLR) with the goal and expectation to resume sports. Unfortunately, the proportion of athletes successfully returning to sport is relatively low, while the rate of second ACL injury has been reported to exceed 20% after clearance to return to sport, especially within younger athletic populations. Despite the development of return-to-sport guidelines over recent years, there are still more questions than answers on the most optimal return-to-sport criteria after ACLR...
January 11, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28062466/knee-injury-and-acl-tear-prevention-programmes-pedro-synthesis
#8
S Eileen Meyer, Tiê P Yamato, Bruno T Saragiotto
No abstract text is available yet for this article.
January 6, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28062120/robotic-simulation-of-identical-athletic-task-kinematics-on-cadaveric-limbs-exhibits-a-lack-of-differences-in-knee-mechanics-between-contralateral-pairs
#9
Nathaniel A Bates, April L McPhearson, Rebecca J Nesbitt, Jason T Shearn, Gregory D Myer, Timothy E Hewett
Limb asymmetry is a known factor for increased ACL injury risk. These asymmetries are normally observed during in vivo testing. Prior studies have developed in vitro testing methodologies driven by in vivo kinematics to investigate knee mechanics relative to ACL injury. The objective of this study was to determine if mechanical side-to-side asymmetries persist in contralateral pairs during in vitro simulation testing. In vivo kinematics were recorded for male and female drop vertical jump and sidestep cutting tasks...
December 29, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/28060534/is-it-necessary-to-repair-stable-ramp-lesions-of-the-medial-meniscus-during-anterior-cruciate-ligament-reconstruction
#10
Xin Liu, Hui Zhang, Hua Feng, Lei Hong, Xue-Song Wang, Guan-Yang Song
BACKGROUND: A special type of meniscal lesion involving the peripheral attachment of the posterior horn of the medial meniscus (PHMM), termed a "ramp lesion," is commonly associated with an anterior cruciate ligament (ACL) injury. However, its treatment is still controversial. Recently, stable ramp lesions treated with abrasion and trephination alone have been shown to have good clinical outcomes after ACL reconstruction. HYPOTHESIS: Stable ramp lesions treated with abrasion and trephination alone during ACL reconstruction will result in similar clinical outcomes compared with those treated with surgical repair...
December 1, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28058447/-posterior-cruciate-ligament-injuries
#11
K F Schüttler, E Ziring, S Ruchholtz, T Efe
Posterior cruciate ligament (PCL) injuries are still often overlooked and treatment of a ruptured PCL is inherently different in comparison to anterior cruciate ligaments (ACL). Conservative treatment is the first-line therapy for acute isolated PCL injuries leading to good clinical and biomechanical results. Injuries to the PCL combined with rupture of other stabilizing ligaments, such as the collateral ligaments or the posterolateral corner of the knee joint are treated surgically. The same is true for high grade chronic PCL insufficiency...
January 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28056513/is-an-anterolateral-ligament-reconstruction-required-in-acl-reconstructed-knees-with-associated-injury-to-the-anterolateral-structures
#12
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...
January 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28056178/is-there-any-benefit-in-anterior-cruciate-ligament-reconstruction-in-patients-older-than-60-years
#13
Cécile Toanen, Guillaume Demey, Panagiotis G Ntagiopoulos, Paolo Ferrua, David Dejour
BACKGROUND: Results of anterior cruciate ligament (ACL) reconstruction are traditionally excellent in younger and nonarthritic patients. During the past few decades, people older than 60 years have become more active than ever, with more demanding physical lifestyles. An increase also has been noted in active patients with diagnosed ACL injuries. More patients are requesting treatment for ACL deficiency in hopes of returning to preinjury levels of activity. PURPOSE: The aims of this study were to evaluate the results of ACL reconstruction in patients older than 60 years in terms of functional recovery, return to sports, and postoperative incidence of osteoarthritis and to compare their results with published results of different age groups...
December 1, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28054146/revision-anterior-cruciate-ligament-reconstruction-with-ipsi-or-contralateral-hamstring-tendon-grafts
#14
Claudio Legnani, Giuseppe Peretti, Enrico Borgo, Stefania Zini, Alberto Ventura
OBJECTIVES: With the increasing number of primary anterior cruciate ligament (ACL) reconstructions, the need for revision ACL surgery has risen over the past few years. The purpose of the present study is to retrospectively compare the clinical outcome of ipsilateral versus contralateral hamstring tendon autografts for ACL revision surgery, specifically with regard to patient satisfaction, post-operative functional outcomes, and return to sports. METHODS: Between 2004 and 2011, 64 patients underwent ACL revision surgery...
January 4, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28053391/a-prospective-study-to-evaluate-the-clinico-radiological-outcomes-of-arthroscopic-single-bundle-versus-double-bundle-anterior-cruciate-ligament-reconstruction
#15
Ashish Devgan, Rajesh Rohilla, Amanpreet Singh, Milind Tanwar, Radhika Devgan, Karan Siwach
INTRODUCTION: The aim of the study was to compare clinical and radiological outcomes of arthroscopic single-bundle versus double-bundle anterior cruciate ligament (ACL) reconstruction. PATIENT AND METHODS: 60 patients with isolated ACL injury were divided into single bundle (SB) (n = 30) and double bundle (DB) reconstruction groups (n = 30) and operated between July 2009 and July 2012. Outcome evaluation was performed using GNRB arthrometer, International Knee Documentation Committee & Lysholm scale...
October 2016: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28050535/anterior-cruciate-ligament-and-meniscal-injuries-in-sports-incidence-time-of-practice-until-injury-and-limitations-caused-after-trauma
#16
Diego Costa Astur, Marcos Xerez, João Rozas, Pedro Vargas Debieux, Carlos Eduardo Franciozi, Moises Cohen
OBJECTIVE: To analyze the incidence of ACL and meniscal injuries in a population of recreational and elite athletes from Brazil and the relation of these injuries with their sports activities. METHODS: This was a prospective observational study of 240 patients with ACL and/or meniscal injuries submitted to surgical treatment. Data of patients and sport modality, as well as Tegner score were registered in the first clinical evaluation. The patients were divided into three groups: (1) isolated rupture of the ACL; (2) ACL injury associated with meniscal injury; (3) isolated menisci injury...
November 2016: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28050456/femoral-and-tibial-tunnel-widening-following-anterior-cruciate-ligament-reconstruction-using-various-modalities-of-fixation-a-prospective-observational-study
#17
Dileep Krishnamoorthy Srinivas, Mahesha Kanthila, Rama Prakasha Saya, Jvs Vidyasagar
INTRODUCTION: Bone tunnel enlargement after Anterior Cruciate Ligament Reconstruction (ACL-R) is a well-accepted phenomenon but there are very few published data comparing the extent of tunnel widening by various methods of fixation after ACL-R. AIM: To compare the femoral and tibial tunnel widening following ACL-R with different methods of fixation using CT scan. MATERIALS AND METHODS: This one year prospective study included all patients with chronic Anterior Cruciate Ligament (ACL) injury who underwent primary arthroscopic ACL-R using tripled hamstring tendon autograft...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28050454/a-comparative-study-of-the-results-of-the-anatomic-medial-portal-and-all-inside-arthroscopic-acl-reconstruction
#18
Kumar Shantanu, Sudhir Shyam Kushwaha, Deepak Kumar, Vineet Kumar, Shailendra Singh, Vineet Sharma
INTRODUCTION: Many techniques of graft placement in Arthroscopic Anterior Cruciate Ligament (ACL) reconstruction is available now-a-days, like trans-tibial, anatomical accessory medial portal and anatomical all-inside technique. AIM: To compare the improvement in clinical status of patients treated by anatomic accessory medial portal and all-inside arthroscopic ACL reconstruction technique pre-operatively post-operatively using International Knee Documentation Comittee (IKDC) Subjective Knee Scores, Lysholm Knee Score, Knee Society Score, Lachman test, Visual Analog Score (VAS) in both the groups...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28045870/preoperative-planning-for-acl-revision-surgery
#19
Leonardo Osti, Matteo Buda, Raffaella Osti, Leo Massari, Nicola Maffulli
The number of patients undergoing revision surgery following failure of anterior cruciate ligament (ACL) reconstruction has increased over the recent past, following the overall increased number of primary ACL reconstruction performed. Failure of primary ACL reconstruction can be attributed to technical errors, biological failures, or new traumatic injuries. Technical errors include femoral and/or tibial tunnels malposition, untreated associated ligaments insufficiencies, uncorrected lower limb malalignment, and graft fixation failures...
March 2017: Sports Medicine and Arthroscopy Review
https://www.readbyqxmd.com/read/28045756/influence-of-age-on-healing-capacity-of-acute-tears-of-the-anterior-cruciate-ligament-based-on-magnetic-resonance-imaging-assessment
#20
Hidetoshi Ihara, Tsutomu Kawano
OBJECTIVE: The purpose of this study was to evaluate the influence of patient age on the effects of conservative treatment of the anterior cruciate ligament (ACL). METHODS: A total of 102 consecutive patients with acute ACL injury were allowed to heal without surgery. Final magnetic resonance imaging images of the ACL were classified from grade I, indicating good morphological recovery, to grade IV, indicating poor recovery. Chi-square analysis was used to determine significant differences in the incidence of grades I and II among those less than 20 versus those 20 years or more of age...
December 29, 2016: Journal of Computer Assisted Tomography
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