Download or read book Biomechanical Outcomes 1 Year After Acl Reconstruction and Meniscus Surgery written by Sadegh Khodabandeloo and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Post-traumatic osteoarthritis (PTOA) is a long-term outcome following anterior cruciate ligament reconstruction (ACLR) surgery. PTOA is defined by pain limitations during movement and the degeneration of articular cartilage. This study aimed to investigate side-to-side differences in arthrokinematics and quantitative magnetic resonance imaging (qMRI) in patients who underwent ACLR with meniscal surgery. Nine participants who had undergone ACLR surgery with meniscal repair and/or partial meniscectomy were included in this study. Arthrokinematic analysis was performed during walking and jogging activities. qMRI measurements, including T1[rho] and T2* relaxation times, were assessed to evaluate cartilage composition. qMRI measurements were acquired with patients laying supine in the MR scanner without an external load applied, as is performed normally, and while a MR-compatible device applied an axial load equivalent to 50% of body weight. The results showed posterior shifts in contact locations during walking, increased cartilage overlap during walking and jogging, and higher sliding velocities in the posterior direction in the injured knee compared to the uninjured knee. The qMRI analysis revealed increased T1[rho], decreased loaded T2* relaxation times and the higher effect of load in the injured knees. These findings contribute to our understanding of the effects of ACLR surgery on arthrokinematics and cartilage composition.

Download or read book Current Concepts in ACL Reconstruction written by Freddie H. Fu and published by SLACK Incorporated. This book was released on 2008 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: From evaluation to outcome, Current Concepts in ACL Reconstruction will help you keep pace with the latest techniques for the treatment of anterior cruciate ligament injuries. This text provides the most complete and up-to-date information for the surgical reconstruction of a torn ACL including details about the newer double-bundle procedure. Both American and international perspectives on the treatment of ACL injuries are included to provide the most comprehensive review on the market today. Inside this richly illustrated text, Drs. Freddie H. Fu and Steven B. Cohen along with contributions from the world's most experienced knee surgeons review the basic science, kinematic, imaging, and injury patterns surrounding the ACL. Surgical concepts, various techniques for reconstruction, and diverse opinions on approaching the ACL are also included. Current Concepts in ACL Reconstruction explains the anatomical basis in order to provide the most current surgical principles to ensure the patient receives the best surgical outcomes. To reflect recent advancements in ACL treatment, the emerging double-bundle technique is comprehensively covered. The differences between the single- and double-bundle techniques are discussed with perspectives from leading international experts in double-bundle reconstruction. An accompanying video CD-ROM demonstrates the various procedures mentioned throughout the text. In addition, several of the world's most experienced surgeons provide their perspective from what they have learned by performing ACL surgery for over 25 years, along with their insight into the future treatment of ACL injuries. What you will want to learn more about: - Differences between single- and double-bundle reconstruction techniques - Outcomes of single- and double-bundle reconstruction - Pediatric ACL reconstruction - Gender differences in ACL injury - Radiographic imaging - Computer navigation assistance for ACL reconstruction - Injury patterns of the ACL - Graft choices in ACL surgery - Revision ACL surgery - Postoperative rehabilitation after ACL reconstruction - Outcome measures to assess success after surgery Current Concepts in ACL Reconstruction answers the need for a comprehensive information source on the treatment of ACL injuries. Orthopedic residents and surgeons will be prepared with this thorough review of ACL reconstruction by their side.

Download or read book Controversies in the Technical Aspects of ACL Reconstruction written by Norimasa Nakamura and published by Springer. This book was released on 2017-03-21 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the reader with the best available evidence on the most pressing issues relating to reconstruction of the anterior cruciate ligament (ACL) with the goal of supporting surgical reconstruction of the ACL and improving outcomes for patients. Key topics for which evidence-based information is presented include selection of graft material and source, the use of different surgical techniques, graft rupture in relation to surgical technique, and progression to osteoarthritis. The book will aid the surgeon in making decisions with respect to fixation devices and tensioning, the bundles to be reconstructed, and whether to preserve remnants or partial bundle ruptures. An evidence-based stance is taken on evolving topics such as the anatomy of the tibial insertion site of the ACL and the role of the anterolateral capsule and posteromedial corner in high-grade rotatory instability. Furthermore, novel technical developments for measurement of knee laxity and soft tissue navigation are discussed. The reader will also find useful information on general issues concerning physical examination, arthroscopic setup, timing of reconstruction, anesthesia, and anticoagulation.

Download or read book The Posterior Cruciate Ligament written by Michael Strobel and published by . This book was released on 2010 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Revision ACL Reconstruction written by Robert G. Marx and published by Springer Science & Business Media. This book was released on 2013-09-05 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although anterior cruciate ligament (ACL) reconstruction has a high success rate, a substantial number of patients are left with unsatisfactory results. Revision ACL Reconstruction: Indications and Technique provides detailed strategies for planning and executing revision ACL reconstructions. Concise chapters by a leading group of international orthopedic surgeons cover the diagnosis of failed ACL reconstruction, patient evaluation, preoperative planning for revision ACL surgery and complex technical considerations.

Download or read book Exploring the Brain After ACL Reconstruction written by Ryan Zarzycki and published by . This book was released on 2018 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rupture of the anterior cruciate ligament (ACL) is a devastating injury affecting approximately 250,000 individuals each year in the United States. Upwards of 130,000 anterior cruciate ligament reconstructions (ACLR) are performed each year. While ACLR restores mechanical stability of the knee, many patients continue to experience functional performance deficits, reduced capacity for physical activity and participation, and second injury. Current rehabilitation strategies may not be sufficiently addressing neurophysiologic alterations and psychological factors related to injury. An improved understanding of these factors may result in more effective post-operative rehabilitation protocols, fewer second injuries and safer return to sports. ☐ The overall goals of this work were: 1) to compare corticospinal, intracortical, and spinal-reflexive excitability in athletes after ACLR and controls, and explore the relationship of these neurophysiologic measures to quadriceps strength, 2) to explore the relationship between psychological readiness to return to sport and gait biomechanics, and 3) to determine if a secondary ACL injury prevention program affects psychological readiness to return to sport and if an improvement in psychological readiness is associated with better outcomes. ☐ This work includes data from two distinct studies. For goal #1, athletes after ACLR underwent neurophysiologic testing via transcranial magnetic stimulation and peripheral electrical stimulation when they achieved 3 important rehabilitation milestones: 1) 2 weeks after surgery, 2) achievement of a “quiet knee” defined as full range of motion and minimal effusion, 3) return to sport (RTS) activities time point defined as achievement of a quadriceps index ≥ 80% and at least 12 weeks post-ACLR. For goals #2 and #3, athletes after ACLR were enrolled after completing impairment resolution defined as: full range of motion, minimal effusion, adequate quadriceps strength and greater than 12 weeks from surgery. Following enrollment, all athletes completed a secondary ACL injury prevention program. Psychological readiness to return to sport and self-reported functional measures were evaluated at enrollment, after the prevention program, and at 1 year after ACLR. ☐ Athletes after ACLR demonstrated alterations in corticospinal, and intracortical excitability early after surgery compared to controls, and these neurophysiologic measures were associated with isometric quadriceps strength during the course of rehabilitation. Changes in these measures did not occur throughout rehabilitation indicating that current rehabilitation may not be addressing cortical alterations associated with chronic quadriceps dysfunction. ☐ For goals #2 and #3 we found that there is a relationship between knee kinematic and kinetic symmetry and psychological readiness to return to sport, prior to return to sport after ACLR. Athletes who scored lower on a psychological readiness to return to sport measure displayed greater asymmetries during gait. Additionally, athletes who demonstrated an improvement in psychological readiness to return to sport had better self-reported function following a secondary injury prevention program and at one year after ACLR. ☐ In conclusion, neurophysiologic pathways from the motor cortex to the quadriceps muscle and psychological factors are related to common impairments and outcomes after ACLR. While research is emerging in these two areas, more research is needed to address the less than optimal outcomes currently related to recovery after ACLR. Addressing cortical excitability and psychological readiness to return to sport during rehabilitation have the potential to improve outcomes after ACLR.

Download or read book Quantifying Cartilage Composition and Arthrokinematics written by John Curtis Ramsdell and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The long-term consequence for many individuals who suffer ACL injury, especially when the meniscus suffers injury as well, is the development of early-onset osteoarthritis (OA), commonly referred to as post-traumatic OA (PTOA). Target therapies to reduce PTOA incidence are desperately needed, as upwards of 200,000 ACL injuries occur each year in the United States; however, therapeutic advancements are hindered by the lack of understanding for the mechanisms that drive PTOA onset and progression. A prevailing hypothesis is that post-surgical alterations to the injured knee's arthrokinematics (the way the cartilage surfaces of the femur and tibia articulate) introduce an unusual loading environment which drives cartilage degeneration and thus the onset and development of PTOA. While prior literature has revealed altered arthrokinematics and cartilage degeneration many years following surgery, the existence and timing of these alterations shortly after surgery are unknown mainly due to the limitations of traditional imaging approaches and the difficulty in comparing arthrokinematics with measures of cartilage degeneration. The first part of this work developed and validated an imaging approach for quantifying arthrokinematic measurements using model-based tracking (MBT) with a high-speed dual fluoroscopic imaging system. MBT is a time-consuming and semiautomatic approach, and thus subject to errors during the tracking process. This work was the first to quantify the effects that intra-user variability and interpolation, which may help speed up the MBT process albeit at the cost of fidelity, have on the arthrokinematic measurement accuracy using MBT. The second part of this work involved the development and assessment of quantitative magnetic resonance imaging (qMRI) parameters, T1[rho] and T2*, as biomarkers for the knee PTOA disease progression. With this work we quantified: 1) the repeatability (side-to-side and visit-to-visit) of qMRI measurements in phantoms and healthy knees, 2) the effect of region of interest size on the repeatability of qMRI measurements, and 3) the effects of acute loading via an MR-compatible loading device on qMRI measurements. The remainder of this work utilized the approaches from the first two parts to test the aforementioned hypothesis in a patient population 1-year following ACL reconstruction and meniscus repair or resection (ACLR+M). Side-to-side differences in arthrokinematic measurements were compared to side-to-side differences in qMRI measurements. Overall, the outcomes of this work define the capacity of our measurement systems to detect abnormalities in arthrokinematic and qMRI measurements. Furthermore, it provides us with evidence of arthrokinematic differences and signs of disease onset 1 year following ACLR+M. Ongoing work will quantify how these measurements change from 1 to 2 years. Ultimately, the results of this work will provide us with a better understanding of the mechanisms that drive PTOA, and will inform future therapeutics, such as new rehabilitation programs, aimed at slowing down or eliminating early changes in patients at high risk for PTOA.

Download or read book Sports Injuries written by Mahmut Nedim Doral and published by Springer Nature. This book was released on 2015-06-29 with total page 3295 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sports Injuries: Prevention, Diagnosis, Treatment and Rehabilitation covers the whole field of sports injuries and is an up-to-date guide for the diagnosis and treatment of the full range of sports injuries. The work pays detailed attention to biomechanics and injury prevention, examines the emerging treatment role of current strategies and evaluates sports injuries of each part of musculoskeletal system. In addition, pediatric sports injuries, extreme sports injuries, the role of physiotherapy, and future developments are extensively discussed. All those who are involved in the care of patients with sports injuries will find this textbook to be an invaluable, comprehensive, and up-to-date reference.

Download or read book Arthroscopic Meniscal Repair written by W. Dilworth Cannon and published by American Academy of Orthopedic Surgeons. This book was released on 1999 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discover how proper preparation, technique, and new suturing tools can make this demanding procedure faster and easier. Begin with the basic science of meniscal repair. Then study the leading surgical alternatives. Your expert contributors address the results as well as the complications of each technique.

Download or read book Return to Sport after ACL Reconstruction and Other Knee Operations written by Frank R. Noyes and published by Springer Nature. This book was released on 2019-11-05 with total page 709 pages. Available in PDF, EPUB and Kindle. Book excerpt: The wealth of information provided in this unique text will enable orthopedic surgeons, medical practitioners, physical therapists, and trainers to ensure that athletes who suffer anterior cruciate ligament (ACL) injuries, or who require major knee operations for other reasons, have the best possible chance of safely resuming sporting activity at their desired level without subsequent problems. Divided into seven thematic sections, the coverage is wide-ranging and encompasses common barriers to return to sport, return to sport decision-based models, and the complete spectrum of optimal treatment for ACL injuries, including preoperative and postoperative rehabilitation. Advanced training concepts are explained in detail, with description of sports-specific programs for soccer, basketball, and tennis. Readers will find detailed guidance on objective testing for muscle strength, neuromuscular function, neurocognitive function, and cardiovascular fitness, as well as validated assessments to identify and manage psychological issues. In addition, return to sport considerations after meniscus surgery, patellofemoral realignment, articular cartilage procedures, and knee arthroplasty are discussed. Generously illustrated and heavily referenced, Return to Sport after ACL Reconstruction and Other Knee Operations is a comprehensive resource for all medical professionals and support staff working with athletes and active patients looking to get back in the game with confidence.

Download or read book ACL Injury and Its Treatment written by Mitsuo Ochi and published by Springer. This book was released on 2016-06-30 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents detailed information on surgically relevant anatomy and histology of the anterior cruciate ligament (ACL), biomechanics, diagnostics, and ACL reconstruction. In light of the growing body of evidence demonstrating the advantages of anatomic ACL reconstruction over traditional methods, there are also discussions of single anteromedial bundle reconstruction and anatomic ACL reconstruction with abundant descriptions of experimental and clinical studies. In addition, particular attention is given not only to techniques such as ACL augmentation, bone-patella tendon-bone reconstruction and computer-assisted navigation, but it also presents expert analysis of revision of ACL reconstruction, complications, and the future perspectives of ACL reconstruction. Edited by authoritative orthopedic surgeon from the Japanese Orthopaedic Society of Knee, Arthroscopy and Sports Medicine (JOSKAS), this book provides up-to-date information for orthopedic surgeons and physical therapists specializing in the ACL. The research evidence will broaden readers’ understanding and enable them to optimize outcomes for patients. As ACL rupture is a common injury especially for high-level athletes, it will also attract sports trainers and team physicians who are interested in a recent update on this field.

Download or read book The Multiple Ligament Injured Knee written by Gregory C. Fanelli and published by Springer Science & Business Media. This book was released on 2012-08-16 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Multiple Ligament Injured Knee: A Practical Guide to Management includes the most developed knowledge needed to successfully diagnose and treat knee ligament injuries. This thorough work presents anterior and posterior cruciate and collateral ligament anatomy and biomechanics along with non-invasive methods for diagnosing the extent of injury, such as radiographic and arthroscopic evaluation. Various injuries are discussed in addition to useful treatment techniques, including arthroscopic reconstruction, posterolateral and posteromedial corner injury and treatment, assessment and treatment of vascular injuries, assessment and treatment of nerve injuries, rehabilitation, and post-operative results. Each of these clearly written chapters is accompanied by a wealth of line drawings and photographs that demonstrate both the surgical and non-surgical approaches to examination and treatment.

Download or read book Musculoskeletal Diseases 2021 2024 written by Juerg Hodler and published by Springer Nature. This book was released on 2021 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book focuses on imaging of the musculoskeletal diseases. Over the last few years, there have been considerable advances in this area, driven by clinical as well as technological developments. The authors are all internationally renowned experts in their field. They are also excellent teachers, and provide didactically outstanding chapters. The book is disease-oriented and covers all relevant imaging modalities, with particular emphasis on magnetic resonance imaging. Important aspects of pediatric imaging are also included. IDKD books are completely re-written every four years. As a result, they offer a comprehensive review of the state of the art in imaging. The book is clearly structured with learning objectives, abstracts, subheadings, tables and take-home points, supported by design elements to help readers easily navigate through the text. As an IDKD book, it is particularly valuable for general radiologists, radiology residents, and interventional radiologists who want to update their diagnostic knowledge, and for clinicians interested in imaging as it relates to their specialty.

Download or read book Hip Biomechanics written by Shinichi Imura and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 327 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is the arranged monograph based on the Hip Biomechanics Symposium held on November 1992 in Fukui, Japan. It consists of six major sections: loading, gait analysis, total hip arthroplasty, osteotomies, motion analysis, and stem designs for stability. The most important aim of the volume is to overview the current research outcomes in the biomechanical approaches to adult hip diseases. Each of these sections brings together many of the leading researchers in this field. The information found here will be of benefit to orthopedic surgeons and researchers in the related areas.

Download or read book Rotatory Knee Instability written by Volker Musahl and published by Springer. This book was released on 2016-09-27 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is designed to equip the reader with the knowledge and tools required for provision of individualized ACL treatment based on the best available evidence. All major aspects of the assessment of rotatory knee instability are addressed in depth. A historical overview of arthrometers, both invasive and non-invasive, is provided, and newly developed devices for the measurement of rotatory knee laxity are considered. Recent advances with respect to the pivot shift test are explained and evidence offered to support a standardized pivot shift test and non-invasive quantification of the pivot shift. Specific surgical techniques for rotatory laxity are described, with presentation of the experience from several world-renowned centers. In addition, functional rehabilitation and “return to play” are discussed. In keeping with the emphasis on an individualized approach, the book highlights individualization of surgical reconstruction techniques in accordance with the specific injury pattern and grade of rotatory knee laxity as well as the use of individualized rehabilitation techniques. Numerous high-quality images illustrate key points and clear take-home messages are provided.

Download or read book Knee Ligaments written by Dale M. Daniel and published by Lippincott Williams & Wilkins. This book was released on 1990 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Return to Play in Football written by Volker Musahl and published by Springer. This book was released on 2018-03-16 with total page 965 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, leading experts employ an evidence-based approach to provide clear practical guidance on the important question of when and how to facilitate return to play after some of the most common injuries encountered in football. Detailed attention is paid to biomechanics, the female athlete, risk factors, injury prevention, current strategies and criteria for safe return to play, and future developments. Specific topics discussed in depth include concussion, anterior cruciate ligament and other knee injuries, back pathology, rotator cuff tears, shoulder instability, hip arthroscopy, and foot and ankle injuries. The chapter authors include renowned clinicians and scientists from across the world who work in the field of orthopaedics and sports medicine. Furthermore, experiences from team physicians involved in the Olympics, National Football League (NFL), Union of European Football Associations (UEFA), and Fédération Internationale de Football Association (FIFA) are shared with the reader. All who are involved in the care of injured footballers will find this book, published in cooperation with ESSKA, to be an invaluable, comprehensive, and up-to-date reference that casts light on a range of controversial issues.