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Book Cover
E-book
Author Richie, Douglas H

Title Pathomechanics of common foot disorders / Douglas H. Richie, Jr
Published Cham : Springer, 2021

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Description 1 online resource (327 pages) : illustrations
Contents Intro -- Preface -- Pathomechanics -- References -- Acknowledgments -- Contents -- 1: Comparative Anatomy and Introduction to the Twisted Plate Mechanism -- The Specialization of the Human Foot -- Ontogeny of the Human Foot -- Does Ontogeny Recapitulate Phylogeny of the Human Foot? -- Ankle and Hindfoot Development: Twisting the Plate of Bones -- Ontogeny of the Forefoot -- Rotation of Segments -- The Twisted Plate Provides the Specialized Function of the Human Foot -- Clinical Application of the Twisted Plate Mechanism -- Twisting the Plate and Locking for Optimal Foot Function
High-Gear Push Off -- What Initiates High-Gear Push Off? -- Testing the Theory of High-Gear Push Off -- What Is the Ideal Alignment of the Human Foot? -- The Myth of Midfoot "Locking" -- What Stiffens the Human Foot? -- The Springlike Function of the Human Foot -- Summary -- References -- 2: Human Walking: The Gait Cycle -- Introduction -- Kinetics -- Key Events in the Walking Gait Cycle -- Phase 1 Initial Contact 0- 2% of the Gait Cycle (Fig. 2.3) -- Phase 2 Loading Response 2-12% of the Gait Cycle (Fig. 2.4) -- Phase 3 Midstance 12- 31% of the Gait Cycle (Fig. 2.5)
Phase 4 Terminal Stance 31-50% of the Gait Cycle (Fig. 2.6) -- Phase 5 Pre-swing 50-62% of the Gait Cycle -- Phase 6 Initial Swing 62-75% of the Gait Cycle Events (Fig. 2.8) -- Phase 7 Mid-swing 75-87% of the Gait Cycle (Fig. 2.9) -- Phase 8 Terminal Swing 87-100% of the Gait Cycle (Fig. 2.10) -- Common Compensatory Changes Observed in Gait -- References -- 3: Motion of the Foot: Joints, Muscles, and Sensorimotor Control -- Introduction -- General Motion of the Foot Segments -- The Bone Pin Studies -- The Lateral Metatarsals Move More than the Medial
The Navicular-Cuneiform Joints Move More than the Midtarsal Joint -- The Midfoot Joints Contribute More Sagittal Plane Motion than the Ankle -- The Medial Column Moves More than the Ankle -- Pure Ankle Joint Motion Can Now Be Measured -- The Ankle Moves in the Transverse and Frontal Planes -- There Is more Frontal Plane Motion in the Ankle than the Subtalar Joint -- The Talonavicular Joint and the Calcaneocuboid Joints Move More than the Subtalar Joint -- Majority of First Ray Motion Is as the Naviculocuneiform Joint -- The Lateral Metatarsals Move More than the Medial Metatarsals
The Lateral and Medial Columns Have the Same Sagittal Plane Motion -- How Does the "Normal" Foot Function in Gait? -- Neuromuscular Control -- Do Joint Axes Determine Direction and Range of Motion? -- Muscle Function in the Lower Extremity -- Phasic Activity -- Muscle Strength -- Moment Arm -- Major Muscle Contributors in Six Planes of Motion (Summary of Table 3.2) -- Sagittal Plane -- Frontal Plane -- Transverse Plane -- Muscle Activity/Demand and Foot Type -- The Plantar Intrinsic Muscles -- Storage and Return of Energy -- Twisting the Plate Stores and Releases Energy -- References
Summary This new book consolidates the current knowledge of lower extremity biomechanics and pathomechanics and makes this information relevant to the study of common foot and ankle pathologies. The content is presented in a language and format that allows the clinician to review current evidence explaining the etiology of these disorders in order to formulate effective treatment interventions. In order to understand pathomechanics, the clinician must also become versed in the normal, healthy biomechanics of the lower extremity. A review of gait, muscle function and forces acting on the lower extremities during physical activity will be the focus of the first part of this book. The second part of the book will study the common, challenging pathologies treated on a daily basis by foot and ankle clinicians: hallux abducto valgus, hallux rigidus, metatarsalgia, digital deformities, adult acquired flatfoot, and plantar heel pain. These chapters discuss all the relevant factors contributing to these conditions, evaluating and exposing myths and misconceptions about the pathomechanics and treatments of these conditions. For each disorder, a comprehensive review of published research provides a foundation for an updated, valid description of etiology and risk factors. Providing a fresh approach to lower extremity pathomechanics and management strategies, Pathomechanics of Common Foot Disorders is a valuable resource for podiatrists and orthopedic foot and ankle surgeons at all levels
Bibliography Includes bibliographical references and index
Notes Print version record
Subject Foot -- Abnormalities.
Foot -- Mechanical properties
Podiatry.
Foot -- anatomy & histology
Foot Deformities, Congenital
Biomechanical Phenomena
Foot -- Mechanical properties
Foot -- Abnormalities
Podiatry
Form Electronic book
ISBN 9783030542016
3030542017