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Anterior cruciate reconstruction

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https://www.readbyqxmd.com/read/29044664/a-new-technique-of-surgical-planning-for-anterior-cruciate-ligament-reconstruction-feasibility-assessment-of-shear-wave-elastography-to-tendon-of-semitendinosus-muscle
#1
Yoshiaki Itoigawa, Yuji Takazawa, Yuichiro Maruyama, Keiichi Yoshida, Tatsuo Sakai, Koichiro Ichimura, Kazuo Kaneko
There is currently no method to quantify the quality of the harvested graft before anterior cruciate ligament (ACL) reconstruction. The purpose of the present study was to explore a method for measuring stiffness of the normal tendon of the semitendinosus muscle using shear wave elastography (SWE). Our investigation comprised two steps. First, we determined orientation of the semitendinosus tendon fibers in 20 lower legs of embalmed cadavers. Second, we investigated the feasibility of quantifying stiffness of the normal semitendinosus tendon by SWE in 24 subjects (48 legs: 24 male and 24 female subjects) in vivo...
October 17, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/29032903/single-shot-femoral-nerve-block-does-not-cause-long-term-strength-and-functional-deficits-following-anterior-cruciate-ligament-reconstruction
#2
Kelechi R Okoroha, Lafi Khalil, Edward K Jung, Robert A Keller, Nathan E Marshall, Moneer Abouljoud, Derek Chan, Vasilios Moutzouros
PURPOSE: To determine if patients treated with a single-shot femoral nerve block have strength and functional deficits at 9-month follow-up. METHODS: Forty-three patients who underwent primary anterior cruciate ligament reconstructions were randomized to receive either a preoperative single-shot femoral nerve block or local infiltration anesthesia for primary pain control. All patients underwent a standardized comprehensive rehabilitation program postoperatively...
October 9, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29032484/young-athletes-return-too-early-to-knee-strenuous-sport-without-acceptable-knee-function-after-anterior-cruciate-ligament-reconstruction
#3
Susanne Beischer, Eric Hamrin Senorski, Christoffer Thomeé, Kristian Samuelsson, Roland Thomeé
PURPOSE: The purpose of this study was to evaluate the return to knee-strenuous sport rate, muscle function and subjective knee function among adolescent patients (15-20 years of age) and adult patients (21-30 years of age) 8 and 12 months, respectively, after anterior cruciate ligament (ACL) reconstruction. It was hypothesised that no differences in outcome would be found between age groups at 8 or 12 months after ACL reconstruction. METHODS: Cross-sectional data from five tests of muscle function, from the Knee injury and Osteoarthritis Outcome Score (KOOS) and the Tegner Activity Scale (Tegner), performed at 8 and 12 months after a primary ACL reconstruction, were extracted from a rehabilitation outcome register...
October 14, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29032309/anterior-cruciate-ligament-revision-with-achilles-tendon-allograft-in-young-athletes
#4
S Zaffagnini, A Grassi, G M Marcheggiani Muccioli, T R Di Sarsina, L Macchiarola, M Mosca, M P Neri, M Marcacci
BACKGROUND: Return to sport after revision ACL reconstruction is a controversial topic, several studies reported the results of different techniques and graft in sportsman, presenting an incredibly wide range of return to the same pre-injury activity level, from 0% to 100%. The purpose of this study was to evaluate the clinical outcomes and return to sport rate in young athletes after non anatomic double-bundle revision ACL reconstruction with Achilles allograft. HYPOTHESIS: the present revision technique was effective in terms of stability, return to sport and functional outcomes MATERIAL AND METHODS: All the athletes undergone Revision ACL reconstruction with non-irradiated Achilles tendon allograft with a non-anatomical double-bundle technique were included in the study...
October 12, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/29029566/associations-among-quadriceps-strength-and-rate-of-torque-development-6-weeks-post-anterior-cruciate-ligament-reconstruction-and-future-hop-and-vertical-jump-performance-a-prospective-cohort-study
#5
Yong-Hao Pua, Benjamin F Mentiplay, Ross A Clark, Jia-Ying Ho
Study Design Prospective cohort. Background Quadriceps strength is associated with hop distance and jump height in persons who have undergone anterior cruciate ligament reconstruction (ACLR). However, it is unknown whether the ability to rapidly generate quadriceps torque in the early phase of recovery is associated with future hopping and jumping performance in this population. Objective To evaluate the prospective associations among quadriceps strength and rate of torque development (RTD) and single-leg hop for distance, vertical jump height, vertical ground reaction force (vGRF), and vertical force loading rate during a landing task in persons who have undergone ACLR...
October 13, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29028445/return-to-sport-specific-performance-after-primary-anterior-cruciate-ligament-reconstruction-a-systematic-review
#6
Nicholas G Mohtadi, Denise S Chan
BACKGROUND: Physicians counseling athletes on the prognosis of sport-specific performance outcomes after anterior cruciate ligament reconstruction (ACLR) depend on the published literature. However, critical appraisal of the validity and biases in these studies is required to understand how ACLR affects an athlete's ability to return to sport, the athlete's sport-specific performance, and his or her ability to achieve preinjury levels of performance. PURPOSE: This review identifies the published prognostic studies evaluating sport-specific performance outcomes after ACLR...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29028358/posterior-tibial-translation-measurements-on-magnetic-resonance-imaging-improve-diagnostic-sensitivity-for-chronic-posterior-cruciate-ligament-injuries-and-graft-tears
#7
Nicholas N DePhillipo, Mark E Cinque, Jonathan A Godin, Gilbert Moatshe, Jorge Chahla, Robert F LaPrade
BACKGROUND: Magnetic resonance imaging (MRI) of the knee is a highly sensitive and specific method for diagnosing acute posterior cruciate ligament (PCL) tears, with a reported accuracy of 96% to 100%. In chronic and revision settings, these injuries may be missed on MRI because of the apparent continuity of nonfunctional PCL fibers. Posterior tibial translation (PTT) of the medial compartment has been identified as a potential secondary finding of PCL tear on routine MRI. Purpose/Hypothesis: The purpose of this study was to evaluate the sensitivity of PTT on MRI associated with PCL injuries and compare it with the sensitivity of a radiologist's MRI interpretation with preoperative posterior knee stress radiographs as the gold standard...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29026421/comparison-of-patellar-versus-hamstring-tendon-autografts-in-arthroscopic-anterior-cruciate-ligament-reconstruction-a-6-month-follow-up-of-a-randomized-clinical-trial
#8
Alireza Sadeghpour, Adel Ebrahimpour, Bahamin Attar, Zahra Azizian
BACKGROUND: The purpose of this study was to compare the outcomes of anterior cruciate ligament (ACL) reconstruction using the patellar versus hamstring tendon (HT) autograft. MATERIALS AND METHODS: In this randomized clinical trial, fifty patients undergoing arthroscopic ACL reconstruction were randomized into two equal groups: Those treated with either autogenous patellar tendon grafts (PT group) or HT group grafts. All patients were reviewed immediately after surgery, at 6 and 12 weeks after surgery, and then at 6 months using the International Knee Documentation Committee evaluation form...
2017: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/29023273/return-to-sports-after-athletes-undergo-meniscal-surgery-a-systematic-review
#9
Yong Seuk Lee, O-Sung Lee, Seung Hoon Lee
OBJECTIVE: The aim of this systematic review was to determine the time to and rate of the return to sports (RTS) after meniscal surgery and to compare these values among the different types of meniscal surgeries. STUDY DESIGN: Systematic review. METHODS: The MEDLINE, EMBASE, and Cochrane databases were searched. Studies that met the following criteria were included: (1) English article, (2) full-text available, (3) study on athletes, and (4) primary outcome is RTS after meniscal surgery, such as meniscectomy, meniscal repair, and meniscal allograft transplantation (MAT)...
October 5, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29019442/the-use-of-hamstring-fatigue-to-reduce-quadriceps-inhibition-after-anterior-cruciate-ligament-reconstruction
#10
Timothy Lowe, Xuanliang Neil Dong
Arthrogenic muscle inhibition, an inability to fully activate the quadriceps muscles, has been persistently observed after anterior cruciate ligament reconstruction (ACLr) surgery. Reductions in quadriceps activation may be partly due to the flexion reflex pathway, hamstrings activation, and reciprocal quadriceps inhibition. Since central fatigue has been shown to modify hamstring excitability and change the hamstring reflex response, hamstring fatigue might alleviate quadriceps muscle inhibition by counteracting the flexion reflex...
January 1, 2017: Perceptual and Motor Skills
https://www.readbyqxmd.com/read/28992770/influence-of-demographic-and-utilization-of-physical-therapy-interventions-on-clinical-outcomes-and-revision-rates-following-anterior-cruciate-ligament-reconstruction
#11
Caitlin J Miller, Jesse C Christensen, Ryan D Burns
Study Design Retrospective cohort from Intermountain Healthcare system Jan 2007-Dec 2014. Background Recent evolutions in healthcare delivery are putting physical therapists in the forefront to be more responsible for providing high-quality rehabilitation care within a more cost-effective manner. Studies investigating the association between physical therapy (PT) visit utilization and outcomes in vulnerable patient populations following anterior cruciate ligament reconstruction (ACLR) may provide useful insights...
October 9, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28991041/quadriceps-function-and-knee-joint-ultrasonography-following-acl-reconstruction
#12
Derek N Pamukoff, Melissa M Montgomery, Tyler J Moffit, Michael N Vakula
PURPOSE: Individuals with anterior cruciate ligament reconstruction (ACLR) are at greater risk for knee osteoarthritis (OA), partially due to chronic quadriceps dysfunction. Articular cartilage is commonly assessed using magnetic resonance imaging and radiography, but these methods are expensive and lack portability. Ultrasound imaging may provide a cost-effective and portable alternative for imaging the femoral cartilage. The purpose of this study was to compare ultrasonography of the femoral cartilage between the injured and uninjured limbs of individuals with unilateral ACLR, and to examine the association between quadriceps function and ultrasonographic measures of femoral cartilage...
October 3, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28990491/young-athletes-after-anterior-cruciate-ligament-reconstruction-cleared-for-sports-participation-how-many-actually-meet-recommended-return-to-sport-criteria-cutoffs
#13
Allison R Toole, Matthew P Ithurburn, Mitchell J Rauh, Timothy E Hewett, Mark V Paterno, Laura C Schmitt
Study Design Prospective cohort study. Background While meeting objective criteria cutoffs are recommended prior to return-to-sport (RTS) following ACL reconstruction (ACLR), the number of young athletes meeting recommended cutoffs and their impact on longitudinal sports participation are unknown. Objectives To test the hypothesis that a higher proportion of young athletes who met recommended cutoffs would maintain the same level of sports participation over the year following RTS clearance compared to those who did not...
October 7, 2017: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/28989937/comparison-of-2-radiographic-techniques-for-measurement-of-tibiofemoral-joint-space-width
#14
Nabil Mehta, Jeffrey Duryea, Gary J Badger, Matthew R Akelman, Morgan H Jones, Kurt P Spindler, Braden C Fleming
BACKGROUND: No consensus is available regarding the best method for measuring tibiofemoral joint space width (JSW) on radiographs to quantify joint changes after injury. Studies that track articular cartilage thickness after injury frequently use patients' uninjured contralateral knees as controls, although the literature supporting this comparison is limited. PURPOSE: (1) To compare JSW measurements using 2 established measurement techniques in healthy control participants and (2) to determine whether the mean JSW of the uninjured contralateral knee in a cohort with anterior cruciate ligament (ACL) reconstruction is different from that obtained from a true control population...
September 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28989265/technical-considerations-in-revision-anterior-cruciate-ligament-acl-reconstruction-for-operative-techniques-in-orthopaedics
#15
Jeremy M Burnham, Elmar Herbst, Thierry Pauyo, Thomas Pfeiffer, Darren L Johnson, Freddie H Fu, Volker Musahl
As the incidence of anterior cruciate ligament (ACL) reconstruction continues to increase, the rate of revision surgery continues to climb. Revision surgery has inherent challenges that must be addressed in order to achieve successful results. The cause of the primary ACL reconstruction failure should be determined, and careful preoperative planning should be performed to address the cause(s) of failure. Each patient undergoing revision surgery should undergo a thorough history and physical examination, receive full length alignment radiographs, lateral radiographs, 45-degree flexion weight-bearing postero-anterior radiographs, and patellofemoral radiographs...
March 2017: Operative Techniques in Orthopaedics
https://www.readbyqxmd.com/read/28987873/hip-joint-biomechanics-in-those-with-and-without-post-traumatic-knee-osteoarthritis-after-anterior-cruciate-ligament-injury
#16
E Wellsandt, J A Zeni, M J Axe, L Snyder-Mackler
BACKGROUND: Anterior cruciate ligament injury results in altered kinematics and kinetics in the knee and hip joints that persist despite surgical reconstruction and rehabilitation. Abnormal movement patterns and a history of osteoarthritis are risk factors for articular cartilage degeneration in additional joints. The purpose of this study was to determine if hip joint biomechanics early after anterior cruciate ligament injury and reconstruction differ between patients with and without post-traumatic knee osteoarthritis 5years after reconstruction...
October 2, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28985644/accessory-anteromedial-portal-may-not-provide-clinically-superior-results-compared-with-the-anteromedial-portal-in-anterior-cruciate-ligament-reconstruction
#17
Shu-Ming Ye, Jue-Hua Jing, Hao Lv, Ji-Sen Zhang, Xin-Zhong Xu, Chun-Gui Xu, Yun Zhou, You-Jia Xu
No abstract text is available yet for this article.
October 6, 2017: Journal of Knee Surgery
https://www.readbyqxmd.com/read/28985125/progressive-changes-in-walking-kinematics-and-kinetics-after-anterior-cruciate-ligament-injury-and-reconstruction-a-review-and-meta-analysis
#18
Lindsay V Slater, Joseph M Hart, Adam R Kelly, Christopher M Kuenze
CONTEXT:   Anterior cruciate ligament (ACL) injury and ACL reconstruction (ACLR) result in persistent alterations in lower extremity movement patterns. The progression of lower extremity biomechanics from the time of injury has not been described. OBJECTIVE:   To compare the 3-dimensional (3D) lower extremity kinematics and kinetics of walking among individuals with ACL deficiency (ACLD), individuals with ACLR, and healthy control participants from 3 to 64 months after ACLR...
September 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/28984381/longitudinal-changes-in-knee-gait-mechanics-between-2-and-8-years-after-anterior-cruciate-ligament-reconstruction
#19
Jennifer C Erhart-Hledik, Constance R Chu, Jessica L Asay, Thomas P Andriacchi
The purpose of this study was to longitudinally investigate changes in knee joint kinematics and kinetics from 2 to 8 years post-ACLR. Seventeen subjects with primary unilateral transtibial ACLR performed bilateral gait analysis approximately 2 years and 8 years post-ACLR. Seventeen matched healthy control subjects were also analyzed. Kinematic and kinetic comparisons between the ACLR and contralateral limbs over time were completed using a 2 × 2 (time, limb) repeated-measures ANOVA. Unpaired Student's t-tests were used to compare the ACLR and contralateral kinematics and kinetics to the control group...
October 6, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28982255/high-rates-of-osteoarthritis-develop-after-anterior-cruciate-ligament-surgery-an-analysis-of-4108-patients
#20
Mark E Cinque, Grant J Dornan, Jorge Chahla, Gilbert Moatshe, Robert F LaPrade
BACKGROUND: Posttraumatic osteoarthritis (PTOA) after anterior cruciate ligament (ACL) reconstruction ultimately translates into a large economic effect on the health care system owing to the young ages of this population. Purpose/Hypothesis: The purposes were to perform a meta-analysis to determine the prevalence of osteoarthritis after an ACL reconstruction, examining the effects of length of time after surgery, preoperative time interval from injury to surgery, and patient age at the time of surgery...
September 1, 2017: American Journal of Sports Medicine
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