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https://www.readbyqxmd.com/read/29667852/determination-of-the-position-of-the-knee-at-the-time-of-an-anterior-cruciate-ligament-rupture-for-male-versus-female-patients-by-an-analysis-of-bone-bruises
#1
Kwadwo A Owusu-Akyaw, Sophia Y Kim, Charles E Spritzer, Amber T Collins, Zoë A Englander, Gangadhar M Utturkar, William E Garrett, Louis E DeFrate
BACKGROUND: The incidence of anterior cruciate ligament (ACL) ruptures is 2 to 4 times higher in female athletes as compared with their male counterparts. As a result, a number of recent studies have addressed the hypothesis that female and male patients sustain ACL injuries via different mechanisms. The efficacy of prevention programs may be improved by a better understanding of whether there are differences in the injury mechanism between sexes. Hypothesis/Purpose: To compare knee positions at the time of a noncontact ACL injury between sexes...
April 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29667429/quadriceps-function-knee-pain-and-self-reported-outcomes-in-patients-with-anterior-cruciate-ligament-reconstruction
#2
Adam S Lepley, Brian Pietrosimone, Marc L Cormier
CONTEXT:   Interactions among muscle strength, pain, and self-reported outcomes in patients with anterior cruciate ligament reconstruction (ACLR) are not well understood. Clarifying these interactions is of clinical importance because improving physical and psychological function is thought to optimize outcomes after ACLR. OBJECTIVE:   To examine the relationships among neuromuscular quadriceps function, pain, self-reported knee function, readiness to return to activity, and emotional response to injury both before and after ACLR...
April 18, 2018: Journal of Athletic Training
https://www.readbyqxmd.com/read/29662914/ligament-strain-response-between-lower-extremity-contralateral-pairs-during-in-vitro-landing-simulation
#3
April L McPherson, Nathanial A Bates, Nathan D Schilaty, Christopher V Nagelli, Aaron J Krych, Timothy E Hewett
Background: Limb asymmetries, as determined through in vivo biomechanical measures, are known risk factors for anterior cruciate ligament (ACL) injury. Previous cadaveric studies have shown a lack of significant differences in ligament strain between contralateral lower extremities when identical kinematics were simulated on specimens. Recent methodological developments have applied in vivo knee kinetics to exert landing forces on cadaveric lower extremities to mimic ACL injury events, but it is unknown whether contralateral limbs fail in a consistent manner during impact simulator testing...
April 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29662913/high-rate-of-missed-lateral-meniscus-posterior-root-tears-on-preoperative-magnetic-resonance-imaging
#4
Aaron J Krych, Isabella T Wu, Vishal S Desai, Naveen S Murthy, Mark S Collins, Daniel B F Saris, Bruce A Levy, Michael J Stuart
Background: Lateral meniscus posterior root tears (LMPRTs), if left untreated, can cause devastating effects to the knee, with rapid articular cartilage degeneration and loss of the meniscus as a secondary stabilizer. Detection and surgical repair of these defects have been linked to favorable outcomes, but preoperative identification of LMPRTs continues to be challenging. Purpose: To determine the rate of LMPRTs diagnosed preoperatively on magnetic resonance imaging (MRI) in a consecutive series of arthroscopically confirmed LMPRTs...
April 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29662910/outcomes-and-return-to-sport-after-revision-anterior-cruciate-ligament-reconstruction-in-adolescent-athletes
#5
Michael Saper, Stephanie Pearce, Joseph Shung, Robert Zondervan, Roger Ostrander, James R Andrews
Background: The number of adolescent anterior cruciate ligament (ACL) injuries is rising with increased participation in higher level athletics at earlier ages. With an increasing number of primary ACL reconstructions (ACLRs) comes a rise in the incidence of revision ACLRs. Purpose: To evaluate the clinical results of revision ACLR across a group of high-level adolescent athletes with at least 2-year follow-up. Study Design: Case series; Level of evidence, 4...
April 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29659299/low-1-year-return-to-sport-rate-after-anterior-cruciate-ligament-reconstruction-regardless-of-patient-and-surgical-factors-a-prospective-cohort-study-of-272-patients
#6
Eric Hamrin Senorski, Eleonor Svantesson, Susanne Beischer, Christoffer Thomeé, Roland Thomeé, Jón Karlsson, Kristian Samuelsson
BACKGROUND: There is insufficient knowledge about the way that concomitant injuries affect the short-term likelihood of a return to a knee-strenuous sport after anterior cruciate ligament (ACL) reconstruction. Hypotheses/Purpose: The purpose was to study whether patient characteristics, concomitant injuries, and graft choice at primary ACL reconstruction can predict return to sport (RTS) 1 year after surgery. The hypotheses were that younger age at the time of ACL reconstruction would positively affect RTS, while the presence of concomitant injuries would negatively affect RTS 1 year after surgery...
April 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29618144/five-strand-hamstring-autograft-in-primary-anterior-cruciate-ligament-reconstruction
#7
Lingaraj Krishna, Xin Yang Tan, Acksen Thangaraja, Francis K L Wong
The purpose of this study was to describe our surgical technique of using five-strand hamstring autograft with interference screw fixation in primary anterior cruciate ligament (ACL) reconstruction and to report the early postoperative outcomes of this technique. Patients who underwent primary ACL reconstruction using five-strand hamstring autografts with interference screw fixation between December 2014 and June 2016 were included in this study. The five-strand configuration was used in these patients because the four-strand configuration produced a graft diameter of less than 8 mm...
April 4, 2018: Journal of Knee Surgery
https://www.readbyqxmd.com/read/29613821/lower-extremity-kinematics-differed-between-a-controlled-drop-jump-and-volleyball-takeoffs
#8
Bradley S Beardt, Myranda R McCollum, Taylour J Hinshaw, Jacob S Layer, Margaret A Wilson, Qin Zhu, Boyi Dai
Previous studies utilizing jump-landing biomechanics to predict anterior cruciate ligament injuries have shown inconsistent findings. The purpose of this study was to quantify the differences and correlations in jump-landing kinematics between a drop-jump, a controlled volleyball-takeoff, and a simulated-game volleyball-takeoff. Seventeen female volleyball players performed these three tasks on a volleyball court while three-dimensional kinematic data were collected by three calibrated camcorders. Participants demonstrated significantly increased jump height, shorter stance time, increased time differences in initial contact between two feet, increased knee and hip flexion at initial contact and decreased peak knee and hip flexion for both left and right legs, and decreased knee-ankle distance ratio at the lowest height of mid-hip for the two volleyball-takeoffs compared with the drop-jump (p < 0...
April 3, 2018: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/29611007/femoral-tunnel-widening-is-associated-with-tunnel-malposition-but-not-with-clinical-failure-after-medial-patellofemoral-ligament-reconstruction-with-a-free-gracilis-tendon-graft
#9
Karl-Friedrich Schüttler, A Hoeger, T J Heyse, J Figiel, N Timmesfeld, T Stein, E Ziring, T Efe
INTRODUCTION: MPFL reconstruction is widely and successfully used for treating patella instability, either as a standalone procedure or in combination. Although different techniques allow for MPFL reconstruction, the use of a free tendon graft is one of the most commonly used. The phenomenon of tunnel widening or tunnel enlargement is well described in ACL reconstruction, but so far only little effort has been put into evaluating this phenomenon after MPFL reconstruction. MATERIALS AND METHODS: Patients who received an MPFL reconstruction with a free gracilis tendon graft were identified by review of patient files...
April 2, 2018: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/29600266/clinical-outcome-of-anatomical-transportal-arthroscopic-anterior-cruciate-ligament-reconstruction-with-hamstring-tendon-autograft
#10
Omid Shahpari, Moslem FallahKezabi, Hamid Hejrati Kalati, Farshid Bagheri, Mohammad H Ebrahimzadeh
Background: Good clinical outcome and return to sport and daily functions after anatomical arthroscopic anterior cruciate ligament (ACL) reconstruction is goal standard in this surgery. but to date, there are different challenging issues between orthopedic surgeons regarding graft selection and surgical techniques. Methods: We retrospectively reviewed the patients who underwent anatomical arthroscopic one bundle ACL reconstruction with quadruple hamstring tendon autograft from 2010 to 2016 in our orthopedic sport medicine center...
March 2018: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/29599121/-what-s-my-risk-of-sustaining-an-acl-injury-while-playing-football-soccer-a-systematic-review-with-meta-analysis
#11
REVIEW
Alicia M Montalvo, Daniel K Schneider, Paula L Silva, Laura Yut, Kate E Webster, Michael A Riley, Adam W Kiefer, Jennifer L Doherty-Restrepo, Gregory D Myer
OBJECTIVE: To estimate the incidence proportion (IP) and incidence rate (IR) of ACL injury in football players. DESIGN: Systematic review with meta-analysis. DATA SOURCES: PubMed, CINAHL and SPORTDiscus electronic databases were searched from inception to 20 January 2017. ELIGIBILITY CRITERIA FOR SELECTING STUDY: Studies that reported the total number of participants/population by sex, total number of ACL injuries by sex and total person-time by sex were included...
March 29, 2018: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/29568787/sex-based-differences-in-knee-kinetics-with-anterior-cruciate-ligament-strain-on-cadaveric-impact-simulations
#12
Nathan D Schilaty, Nathaniel A Bates, Christopher Nagelli, Aaron J Krych, Timothy E Hewett
Background: Females are at an increased risk of sustaining noncontact knee ligament injuries as compared with their male counterparts. The kinetics that load the anterior cruciate ligament (ACL) are still under dispute in the literature. Purpose/Hypothesis: The purpose of this study was to determine whether there are differences in knee kinetics between the sexes that lead to greater ACL strain in females when similar external loads are applied during a simulated drop vertical jump landing task...
March 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29565632/higher-gene-expression-of-healing-factors-in-anterior-cruciate-ligament-remnant-in-acute-anterior-cruciate-ligament-tear
#13
João Victor Novaretti, Diego Costa Astur, Davi Casadio, Alexandre Pedro Nicolini, Alberto de Castro Pochini, Carlos Vicente Andreoli, Benno Ejnisman, Moises Cohen
BACKGROUND: Anterior cruciate ligament (ACL) reconstruction with remnant preservation has been described and related to potential advantages. Literature is lacking regarding gene expression of potential factors related to ligament healing in the ACL remnant and its relation to time from injury. HYPOTHESIS: The mRNA expression of ligament healing factors in the ACL remnant would be higher in acute tears (<3 months from injury) than in intermediate (3-12 months) and chronic (>12 months) injuries...
March 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29556892/successful-anterior-cruciate-ligament-reconstruction-and-meniscal-repair-in-osteogenesis-imperfecta
#14
Jae-Young Park, Tae-Joon Cho, Myung Chul Lee, Hyuk-Soo Han
A case of anterior cruciate ligament (ACL) reconstruction with meniscal repair in an osteogenesis imperfecta patient is reported. A 24-year-old female with osteogenesis imperfecta type 1a suffered from a valgus extension injury resulting in tear of ACL and medial meniscus. She underwent an arthroscopic-assisted ACL reconstruction and medial meniscus repair. Meniscal tear at the menisco-capsular junction of the posterior horn of medial meniscus was repaired with three absorbable sutures via inside-out technique...
March 20, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29552573/energy-absorption-contribution-and-strength-in-female-athletes-at-return-to-sport-after-anterior-cruciate-ligament-reconstruction-comparison-with-healthy-controls
#15
Marie E Boo, J Craig Garrison, Joseph P Hannon, Kalyssa M Creed, Shiho Goto, Angellyn N Grondin, James M Bothwell
Background: Female patients are more likely to suffer a second anterior cruciate ligament (ACL) injury after ACL reconstruction (ACLR) and return to sport (RTS) compared with healthy female controls. Few studies have examined the energy absorption contribution (EAC) that could lead to this subsequent injury. Hypothesis: The ACLR group would demonstrate an altered EAC between joints (hip, knee, and ankle) but no difference in quadriceps, hip abduction, or hip external rotation (ER) strength at the time of RTS...
March 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29550413/sex-differences-in-common-sports-injuries
#16
REVIEW
Cindy Lin, Ellen Casey, Daniel Herman, Nicole Katz, Adam Tenforde
Common sports injuries include bone stress injuries (BSIs), anterior cruciate ligament (ACL) injuries, and concussions. Less commonly recognized are the specific sex differences in epidemiology, risk factors, and outcomes of these conditions by sex. An understanding of these factors can improve their clinical management, from prescribing appropriate prehabilitation to guiding postinjury rehabilitation and return to play. This narrative review summarizes the sex differences in the diagnosis and management of BSIs, ACL injuries, and concussions...
March 14, 2018: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/29549389/altered-movement-during-single-leg-hop-test-after-acl-reconstruction-implications-to-incorporate-2-d-video-movement-analysis-for-hop-tests
#17
Wouter Welling, Anne Benjaminse, Romain Seil, Koen Lemmink, Alli Gokeler
PURPOSE: There is a lack of objective factors which can be used in guiding the return to sport (RTS) decision after an anterior cruciate ligament reconstruction (ACLR). The purpose of the current study was to conduct qualitative analysis of the single leg hop (SLH) in patients after ACLR with a simple and clinical friendly method and to compare the possible difference in movement pattern between male and female patients. METHODS: Sixty-five patients performed the single leg hop (SLH) test at 6...
March 16, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29544359/altered-lower-extremity-joint-mechanics-occur-during-the-star-excursion-balance-test-and-single-leg-hop-after-acl-reconstruction-in-a-collegiate-athlete
#18
Michael A Samaan, Stacie I Ringleb, Sebastian Y Bawab, Eric K Greska, Joshua T Weinhandl
The effects of ACL-reconstruction on lower extremity joint mechanics during performance of the Star Excursion Balance Test (SEBT) and Single Leg Hop (SLH) are limited. The purpose of this study was to determine if altered lower extremity mechanics occur during the SEBT and SLH after ACL-reconstruction. One female Division I collegiate athlete performed the SEBT and SLH tasks, bilaterally, both before ACL injury and 27 months after ACL-reconstruction. Maximal reach, hop distances, lower extremity joint kinematics and moments were compared between both time points...
March 15, 2018: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/29536687/-analysis-of-the-characteristics-and-clinical-diagnosis-and-treatment-of-avulsion-fracture-of-the-lateral-edge-of-tibial-plateau
#19
Jia-Ping Pan, Xu-Can Wang, Ming-Hong Huang
OBJECTIVE: To investigate the characteristics and clinical treatment of avulsion fracture of the lateral edge of tibial plateau(segond fracture) in knee joint injuries. METHODS: From January 2011 and December 2015, 29 patients with Segond fracture were treated with minimally invasive arthroscopy technology in intra-articular injuries combined with double anchor nail fixation in avulsion fracture of the lateral edge of tibial plateau, including 17 males and 12 females with an average age of 41 years old ranging from 27 to 62 years old...
February 25, 2018: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29536023/male-sex-decreased-activity-level-and-higher-bmi-associated-with-lower-completion-of-patient-reported-outcome-measures-following-acl-reconstruction
#20
Eric J Cotter, Charles P Hannon, Philip Locker, Annabelle Davey, Kevin C Wang, Nikhil N Verma, Brian J Cole
Background: Patient-reported outcome (PRO) surveys have become increasingly important in both improving patient care and assessing outcomes. Purpose/Hypothesis: The purpose of this study was to evaluate which variables are associated with compliance with completing PRO surveys in patients who have undergone anterior cruciate ligament reconstruction (ACLR). The authors hypothesized that older patient age and longer time since ACLR would be associated with lower completion rates of PRO surveys preoperatively and at postoperative time points...
March 2018: Orthopaedic Journal of Sports Medicine
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