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Author: Benjamin Donald McHenry
Publisher:
ISBN:
Category : Ankle
Languages : en
Pages :
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Book Description
Lower extremity motion analysis has become a powerful tool used to assess the dynamics of both normal and pathologic gait in a variety of clinical and research settings. Early rigid representations of the foot have recently been replaced with multi-segmental models capable of estimating intra-foot motion. Current models using externally placed markers on the surface of the skin are easily implemented, but suffer from errors associated with soft tissue artifact, marker placement repeatability, and rigid segment assumptions. Models using intra-cortical bone pins circumvent these errors, but their invasive nature has limited their application to research only. Radiographic models reporting gait kinematics currently analyze progressive static foot positions and do not include dynamics. The goal of this study was to determine the feasibility of using fluoroscopy to measure in vivo intra-foot dynamics of the hindfoot during the stance phase of gait. The developed fluoroscopic system was synchronized to a standard motion analysis system which included a multi-axis force platform. Custom algorithms were created to translate points of interest from 2D fluoroscopic image space to global tri-axial space. From these translated points of interest, a hindfoot specific model was developed to quantify sagittal plane talocrural and subtalar dynamics. The new hindfoot model was evaluated and applied to a pilot population of thirteen healthy adults during barefoot and toe-only rocker walking conditions. The barefoot kinematic and kinetic results compared favorably with barefoot dynamics reported by other authors. As a result of the barefoot study, it was concluded that inter-subject variability in sagittal plane kinematics was higher for the talocrural joint than the subtalar joint. The toe-only rocker analysis was the first report of hindfoot kinematics within a rocker sole shoe modification. Hindfoot kinematic inter-subject variability was significantly lower in the toe-only rocker condition when compared to barefoot results. This study represents the first use of fluoroscopy to quantify in vivo intra-foot dynamics during the stance phase of gait. Talocrural and subtalar dynamics of healthy adult subjects are reported. The technology developed for this study is capable of examining soft tissue and bony abnormalities associated with the pathologic foot. Based on the overall results of this study, it is recommended that development continue for further analysis within the clinical environment, and examination of complex in vivo foot and ankle dynamics.
Author: Benjamin Donald McHenry
Publisher:
ISBN:
Category : Ankle
Languages : en
Pages :
Get Book Here
Book Description
Lower extremity motion analysis has become a powerful tool used to assess the dynamics of both normal and pathologic gait in a variety of clinical and research settings. Early rigid representations of the foot have recently been replaced with multi-segmental models capable of estimating intra-foot motion. Current models using externally placed markers on the surface of the skin are easily implemented, but suffer from errors associated with soft tissue artifact, marker placement repeatability, and rigid segment assumptions. Models using intra-cortical bone pins circumvent these errors, but their invasive nature has limited their application to research only. Radiographic models reporting gait kinematics currently analyze progressive static foot positions and do not include dynamics. The goal of this study was to determine the feasibility of using fluoroscopy to measure in vivo intra-foot dynamics of the hindfoot during the stance phase of gait. The developed fluoroscopic system was synchronized to a standard motion analysis system which included a multi-axis force platform. Custom algorithms were created to translate points of interest from 2D fluoroscopic image space to global tri-axial space. From these translated points of interest, a hindfoot specific model was developed to quantify sagittal plane talocrural and subtalar dynamics. The new hindfoot model was evaluated and applied to a pilot population of thirteen healthy adults during barefoot and toe-only rocker walking conditions. The barefoot kinematic and kinetic results compared favorably with barefoot dynamics reported by other authors. As a result of the barefoot study, it was concluded that inter-subject variability in sagittal plane kinematics was higher for the talocrural joint than the subtalar joint. The toe-only rocker analysis was the first report of hindfoot kinematics within a rocker sole shoe modification. Hindfoot kinematic inter-subject variability was significantly lower in the toe-only rocker condition when compared to barefoot results. This study represents the first use of fluoroscopy to quantify in vivo intra-foot dynamics during the stance phase of gait. Talocrural and subtalar dynamics of healthy adult subjects are reported. The technology developed for this study is capable of examining soft tissue and bony abnormalities associated with the pathologic foot. Based on the overall results of this study, it is recommended that development continue for further analysis within the clinical environment, and examination of complex in vivo foot and ankle dynamics.
Author: Gerald F. Harris
Publisher: CRC Press
ISBN: 142000574X
Category : Medical
Languages : en
Pages : 702
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Book Description
Human motion analysis or gait analysis is used throughout the country and the world in clinics for pre-surgical planning and postsurgical follow-up. Only recently have technological advances truly begun to meet medical needs by supplying more accurate analytical data from which to make educated assessments of dynamic foot and ankle pathology. A com
Author: Robert Christman
Publisher: Lippincott Williams & Wilkins
ISBN: 149630439X
Category : Medical
Languages : en
Pages : 1577
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Book Description
This text/atlas of radiography introduces the scope of diagnostic radiology applicable to podiatric medicine, including normal and pathological presentations of the foot and ankle. It covers the principles of radiographic interpretation, normal and variant radiographic anatomy and development of the foot and ankle, systematic evaluation of bone and joint disorders, as well as bone and joint abnormalities. The second edition will include MRI and CT imaging as well as a chapter on musculoskeletal ultrasound. It demonstrates how to systematically analyze a radiograph and identify conditions that are intrinsic to the foot or that represent manifestations of extrinsic disease.
Author: Thomas H. Berquist
Publisher: Lippincott Williams & Wilkins
ISBN: 1451147996
Category : Medical
Languages : en
Pages : 720
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Book Description
Revised and updated for its Third Edition, this highly acclaimed volume is a definitive guide to the clinical imaging of foot and ankle disorders. The title of this edition has changed from Radiology of the Foot and Ankle to Imaging of the Foot and Ankle to reflect a greater emphasis on multimodality imaging approaches to solve diagnostic challenges, specifically the increased use of ultrasound, MR imaging, CT, and diagnostic interventional techniques. The book features increased coverage of ultrasound, PET, and the diabetic foot and upgraded MR and CT images. New syndromes such as impingement have been added to the chapter on soft tissue trauma and overuse. The fractures and dislocations chapter includes OTA classifications and additional MR and CT scans of complications. Other highlights include up-to-date information on new fixation devices and prostheses and state-of-the-art interventional and vascular techniques including use of MRA.
Author: Mark Davies
Publisher: Springer Nature
ISBN: 3031386094
Category : Medical
Languages : en
Pages : 567
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Book Description
Up-to-date and comprehensive textbook on imaging of the foot and ankle. In the first part, the various techniques and procedures are discussed in detail. Individual chapters are devoted to: radiography, arthrography and tenography, computed tomography and CT arthrography, magnetic resonance imaging and MR arthrography, ultrasonography, and intra-articular injections. The second part documents the application of these techniques to diverse clinical problems and diseases, including: congenital and developmental disorders, trauma, tendon and ligament pathology, compressive neuropathies, infection, and the diabetic foot. Each chapter is written by an acknowledged expert, and a wealth of illustrative material is included.
Author: A. Mark Davies
Publisher: Springer Science & Business Media
ISBN: 3642593631
Category : Medical
Languages : en
Pages : 646
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Book Description
Up-to-date and comprehensive textbook on imaging of the foot and ankle. In the first part, the various techniques and procedures are discussed in detail. Individual chapters are devoted to: radiography, arthrography and tenography, computed tomography and CT arthrography, magnetic resonance imaging and MR arthrography, ultrasonography, and intra-articular injections. The second part documents the application of these techniques to diverse clinical problems and diseases, including: congenital and developmental disorders, trauma, tendon and ligament pathology, compressive neuropathies, infection, and the diabetic foot. Each chapter is written by an acknowledged expert, and a wealth of illustrative material is included.
Author: Julia R. Crim
Publisher: Lippincott Williams & Wilkins
ISBN:
Category : Ankle
Languages : en
Pages : 262
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Book Description
Disorders of the foot and ankle are common, and significant strides have recently been made to understand and treat them. Imaging of the Foot and Ankle addresses the current medical advances, with a special emphasis on sports medicine. It integrates all the current imaging modalities, from plain film to MRI, CT to nuclear medicine. Many disorders in the foot have subtle radiographic findings, and many different entities have similar clinical presentations. Consequently, differential diagnosis is emphasized in both the text and in the tables. Written by a musculoskeletal radiologist in collaboration with two orthopedic surgeons, Imaging of the Foot and Ankle emphasizes those cases which are pertinent to daily practice in radiology.
Author: Andrew Robinson
Publisher: Cambridge University Press
ISBN: 1108314457
Category : Medical
Languages : en
Pages : 438
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Book Description
This concise guide offers an ideal overview of both the practical and theoretical aspects of foot and ankle surgery for trainees and junior consultants. Easy to read chapters cover all areas of surgery, from examination, imaging, and the biomechanics of the foot and ankle, to specific conditions including amputations and prostheses, deformities, arthritis, cavus and flat foot, sports injuries, Achilles tendon, benign and malignant tumors and heel pain. Fractures and dislocations of the ankle, hind-, mid- and forefoot are also covered, as are the foot in diabetes and pediatrics. Written by a team of international experts, the text is an accessible way to prepare for postgraduate examinations and manage patients successfully.
Author: Ulrike Szeimies
Publisher: Thieme
ISBN: 3131764716
Category : Medical
Languages : en
Pages : 887
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Book Description
The foot has a special place in musculoskeletal diagnosis due to its complex anatomy and because many similar symptoms can have different causes, each requiring a different approach to treatment. The evaluation of foot disorders and diseases requires close clinical–radiological correlation and communication with foot experts. Foot disorders and injuries increase with age, due in part to the rising popularity of recreational sports in all age groups. Diagnostic Imaging of the Foot and Ankle will help you train your eye to recognize disorders and diseases of the foot and ankle, including those that are often misdiagnosed or overlooked. Key Features: By practitioners for practitioners: First-hand knowledge from leading surgical and orthopedic foot experts and radiologists Clear and concise: A textbook and reference in a user-friendly layout focused on the foot and ankle Uniform format: Entities are described by definition, clinical presentation, imaging modalities, typical imaging features, differential diagnosis, treatment options, course, and pitfalls Clinical aspects and treatment: Clinical–radiological correlation plus a concise review of treatment options The new standard: This information on the foot and ankle is available nowhere else in such a condensed form Highest quality images: More than 500 superb illustrations including high-resolution images acquired with high-field MRI and multi-channel coils
Author: Mary G. Hochman
Publisher: Elsevier Health Sciences
ISBN: 0323496636
Category : Medical
Languages : en
Pages : 249
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Book Description
This issue of MRI Clinics of North America focuses on Imaging of the Foot and Ankle, and is edited by Dr. Mary Hochman. Articles will include: Technical Considerations: Best Practices for MR Imaging of the Foot and Ankle; Normal Variants and Potential Pitfalls in MRI of the Ankle and Foot; Medial Sided Ankle Pain: MRI of the Deltoid Ligament and Beyond; MRI of Impingement and Entrapment Syndromes of the Foot and Ankle; MRI of the Diabetic Foot; MRI of the Midfoot; MRI of the Plantar Plate: Normal Anatomy, Turf Toe, and other Injuries; MRI of Common Bone and Soft Tissue Tumors in the Foot and Ankle; MRI of the Post-operative Ankle and Foot; New Techniques in MR Imaging of the Ankle and Foot; MRI of the Pediatric Foot and Ankle: What Does Normal Look Like?; and more!
