Diagnosis and Management of Lameness in the Horse

Author: Ross   Michael W.  

Publisher: Elsevier Health Sciences‎

Publication year: 2010

E-ISBN: 9781437711769

Subject: R749.055 psychological therapy

Language: ENG

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Chapter

Instructions for online access

PART I: Diagnosis of Lameness

SECTION 1: The Lameness Examination

Chapter 1: Lameness Examination: Historical Perspective

Chapter 2: Lameness in Horses: Basic Facts Before Starting

Definition

Localization of Pain

Baseline and Induced Lameness

Coexistent Lameness

Lameness Distribution

Relationship of Lameness and Conformation

Poor Performance

Gait Deficits not Caused by Lameness

Unexplained Lameness

Components of the Lameness Examination and Lameness Strategy

Chapter 3: Anamnesis (History)

Clinical History: Basic Information

Further Information

Chapter 4: Conformation and Lameness

Relevance of Evaluation of Conformation

Hereditary Aspects of Conformation

Objective Evaluation of Conformation: Is It Possible?

Evaluation of Conformation

Forelimb Conformation

Hindlimb Conformation

Conformation of the Digit

Chapter 5: Observation: Symmetry and Posture

Forelimb Symmetry

Hindlimb Symmetry

Posture

Forelimb Posture

Hindlimb Posture

Chapter 6: Palpation

The Art of Palpation

Palpation of the Forelimb

Palpation of the Cervical and Thoracolumbar Spine

Palpation of the Lateral and Ventral Thorax and Abdomen

Palpation of the External Genitalia

Palpation of the Pelvis

Palpation of the Pelvis per Rectum

Palpation of the Hindlimb

The Churchill Hock Test

Saphenous Filling Time

The Role of Physical Examination in the Lameness Examination

Chapter 7: Movement

Gait

Determination, Grading, and Characterization of Lameness

Determining the Location of Lameness

The Lameness Score: Quantification of Lameness Severity

Lameness Detection

Evaluation of Limb Flight

Abnormalities of Limb Flight

Evaluation of Foot Placement

Additional Movement During Lameness Examination

Evaluation of Lameness with a Treadmill or Gait Analysis

Chapter 8: Manipulation

Induced and Baseline Lameness

Flexion Tests

Direct or Local Palpation Followed by Movement

Induced Lameness after Hoof Tester Examination

The Wedge Test

Varus or Valgus Stress Tests

Flexion Tests and Diagnostic Analgesia

Chapter 9: Applied Anatomy of the Musculoskeletal System

The Language of Anatomy

Forces

Specialized Structures

Passive Stay Apparatus

Three-Dimensional Anatomy

Chapter 10: Diagnostic Analgesia

Local Anesthetics: Pharmacology and Tissue Interactions

Perineural Analgesia in the Forelimb

Intraarticular Analgesia in the Forelimb

Analgesia of Forelimb Bursae and Tendon Sheaths

Perineural Analgesia in the Hindlimb

Intraarticular Analgesia in the Hindlimb

Analgesia of Hindlimb Bursae and Tendon Sheaths

Local Infiltration in the Forelimb and Hindlimb

Chapter 11: Neurological Examination and Neurological Conditions Causing Gait Deficits

Diagnosis

Specific Diseases and Syndromes

Chapter 12: Unexplained Lameness

False-Negative Responses to Diagnostic Analgesia

Potentially Confusing Responses to Local Analgesic Techniques

Challenges to Lameness Diagnosis

Negative Responses

Neck Lesions and Forelimb Lameness

Referred Pain

Previously Unrecognized Causes of Lameness Proximal to the Carpus And Tarsus

Misinterpreted Imaging Findings that Result in Misdiagnosis

Odd Lameness Apparent Only During Riding

Identifiable Lesions: Which Contribute to the Current Lameness?

Other Causes of Lameness

Chapter 13: Assessment of Acute-Onset, Severe Lameness

Field Diagnosis of the Injured Horse

Assessment

Transportation

Guidelines for Humane Destruction of an Injured Horse

Chapter 14: The Swollen Limb

Diagnosis

Management

SECTION 2: Diagnostic Imaging

Chapter 15: Radiography and Radiology

Radiographic Detail

Radiation Safety

Response of Bone to Stimuli: Wolff’s Law

Fracture

Degenerative Joint Disease: Osteoarthrosis or Osteoarthritis

Luxation and Subluxation

Dystrophic and Metastatic Mineralization

Radiographic Examination

Interpreting Radiographs

Radiographic Technique

Chapter 16: Ultrasonographic Evaluation of the Equine Limb: Technique

Equipment

Horse Preparation

Medical Records

Exercise Levels

Scanning Technique

Artifacts

Terminology and Quantitative Measurements

Zone Designations

Clinical Ultrasonography

Clinical Applications

Chapter 17: Ultrasonographic Examination of Joints

Fetlock

Stifle

Collateral Ligaments of the Hock

Chapter 18: Ultrasonography and Orthopedic (Nonarticular) Disease

Skeletal Muscle

Nerve

Penetrating Injuries

Draining Tracts

Foreign Bodies

Bone

Chapter 19: Nuclear Medicine

General Considerations

Scintigraphy and Other Imaging Modalities: Where do They Fit?

Radioisotopes and Radiopharmaceuticals

Imaging Equipment

Image Acquisition

Radiation Safety

Bone Scan Phases

Scan Interpretation

Indications and Case Selection

Knowledge Gained from Scintigraphic Examination of the Lame Horse

Chapter 20: Computed Tomography

Physics

Equipment

Image Display and Processing

Clinical Applications

Advantages and Disadvantages

Chapter 21: Magnetic Resonance Imaging

Production of Magnetic Resonance Images

Equipment for MRI in Horses

Advantages and Disadvantages Compared with other Imaging Techniques

Interpretation of Magnetic Resonance Images

Artifacts

Indications for MRI in Equine Lameness

Chapter 22: Gait Analysis for the Quantification of Lameness

Kinetics

Kinematics

Chapter 23: Arthroscopic Examination

Advantages and Disadvantages of Arthroscopic Surgery Compared with Arthrotomy

Principles, Instrumentation, and Technique

Surgical Procedures

Complications

Chapter 24: Tenoscopy and Bursoscopy

General Principles of Tenoscopy and Bursoscopy

Tenoscopy

Tarsal Sheath

Bursoscopy

Chapter 25: Thermography: Use in Equine Lameness

Image Acquisition

Clinical Imaging

Conclusion

PART II: The Foot

Chapter 26: The Biomechanics of the Equine Limb and Its Effect on Lameness

When Do Musculoskeletal Structures Fail?

Functional Anatomy of the Horse Limb

Ability of Structures to Cope with Mechanical Demands

The Effects of Conformation on Equine Distal Limb Mechanics

Effect of Shoeing

Alterations in Mechanics with Specific Orthopedic Disorders

Conclusion

Chapter 27: The Foot and Shoeing

Foot Balance, Conformation, and Lameness

Horseshoes and Shoeing

Natural Balance Trimming and Shoeing

Hoof Reconstruction Materials and Glue-On Shoes

Chapter 28: Trauma to the Sole and Wall

Problems Associated with Horseshoe Nails

Penetrating Injuries of the Sole

Penetrating Wounds to the Navicular Bursa (Bursa Podotrochlearis), Infectious (Septic) Navicular Bursitis, “Streetnail”

Hoof Wall Cracks

Coronary Band and Hoof Wall Lacerations

Canker

Chapter 29: Functional Anatomy of the Palmar Aspect of the Foot

Digital Cushion

Energy Dissipation

Navicular Suspensory Apparatus

Distal Interphalangeal Joint

Innervation

Chapter 30: Navicular Disease

Pathophysiology of Navicular Disease

Diagnostic Considerations

Other Soft Tissue Causes of Palmar Foot Pain

Treatment of Primary Navicular Disease*

Management Strategies

Chapter 31: Fracture of the Navicular Bone and Congenital Bipartite Navicular Bone

History

Clinical Examination and Diagnosis

Treatment

Chapter 32: Primary Lesions of the Deep Digital Flexor Tendon within the Hoof Capsule

Anatomy

Pathophysiology

History and Clinical Signs

Local Analgesia

Diagnostic Imaging

Surgical Exploration

Treatment

Chapter 33: The Distal Phalanx and Distal Interphalangeal Joint

Primary Pain Associated with the Distal Interphalangeal Joint

Fractures and Fragmentation of the Extensor Process of the Distal Phalanx

Injuries of the Collateral Ligaments of the Distal Interphalangeal Joint

Osseous Cystlike Lesions in the Distal Phalanx

Osseous Trauma of the Distal and Middle Phalanges

Keratomas and Neoplastic and Nonneoplastic Space-Occupying Lesions in the Hoof

Fractures of the Distal Phalanx

Pedal Osteitis: Does It Exist?

Osteitis of the Palmar Processes of the Distal Phalanx

Disease of the Cartilages of the Foot

Chapter 34: Laminitis

Pathophysiology of Laminitis

Diagnosis of Laminitis

Medical Therapy of Laminitis

Chronic Laminitis

Venography

Hoof Care of a Laminitic Horse

Deep Digital Flexor Tenotomy for Managing Laminitis

Other Management Aspects of Laminitis

PART III: The Forelimb

Chapter 35: The Proximal and Middle Phalanges and Proximal Interphalangeal Joint

Anatomical Considerations

Lameness Examination

Imaging Considerations

Breed Predilection

Fractures of the Proximal Phalanx

Dorsal Osteochondral Fragments in the Metacarpophalangeal/Metatarsophalangeal Joint

Osteochondrosis of the Proximal Interphalangeal Joint

Osteoarthritis of the Proximal Interphalangeal Joint

Arthrodesis of the proximal Interphalangeal Joint

Bone Trauma

Soft Tissue Injuries

Subluxation of the Proximal Interphalangeal Joint

Wounds and INFECTION in the Pastern Region

Chapter 36: The Metacarpophalangeal Joint

Anatomical Considerations

Diagnosis

Imaging Considerations

Types of Fetlock Joint Lameness

Acute or Repetitive Overload Injuries

Injuries to the Proximal Phalanx

Conditions of the Proximal Sesamoid Bones

Fractures of the Third Metacarpal Bone

Osteochondrosis

Collateral Ligament Injury

Traumatic Disruption of the Suspensory Apparatus

Chapter 37: The Metacarpal Region

Anatomy

Diagnosis

Imaging

Differential Diagnosis

Differential Diagnosis of Diffuse Filling in the Metacarpal Region

Use of Boots and Bandages to Prevent Injury

Chapter 38: The Carpus

Anatomy

Conformation

Clinical Characteristics and Diagnosis of Carpal Lameness

Specific Conditions of the Carpus

Chapter 39: The Antebrachium

Anatomy

Clinical Diagnosis and Imaging Considerations

Chapter 40: The Elbow, Brachium, and Shoulder

Anatomical Considerations

Diagnosis

Imaging

Differential Diagnosis

PART IV: The Hindlimb

Chapter 41: The Hind Foot and Pastern

Anatomy and Innervation of the Hind Foot and Pastern

Examination, Clinical Signs, and Diagnosis

Specific Lameness Conditions

Chapter 42: The Metatarsophalangeal Joint

Anatomy

Conformation

Clinical Characteristics and Diagnosis of Metatarsophalangeal Joint Lameness

Imaging Considerations

Specific Conditions of the Metatarsophalangeal joint

Chapter 43: The Metatarsal Region

Anatomy

Clinical Characteristics and Diagnosis of Lameness in the Metatarsal Region

Specific Conditions of the Metatarsal Region

Chapter 44: The Tarsus

Anatomical Considerations

Diagnostic Imaging

Articular Diseases of the Tarsus

Tarsal Bone Fractures and Luxations

Soft Tissue Injury of the Tarsus

Miscellaneous Tarsal Injuries

Chapter 45: The Crus

Anatomy

Clinical Characteristics and Diagnosis of Lameness of the Crus

Specific Conditions of the Crus

Chapter 46: The Stifle

Anatomy

Diagnosis

Diagnostic Analgesia

Imaging Considerations

Articular Diseases

Chapter 47: The Thigh

The Gluteal Syndrome

Trochanteric Bursitis

Chapter 48: Mechanical and Neurological Lameness in the Forelimbs and Hindlimbs

General Considerations

Anatomical Considerations

Upward Fixation of the Patella (Locking Stifle) and Delayed Release of the Patella

Fibrotic Myopathy

Stringhalt

Shivers (Shiverers, Shivering)

Hindlimb Extensor Weakness

Stumbling

Flexion of the Fetlock and Inability to Load the Heel

Toe Drag

Pacing at the Walk

Stepping Short on a Hindlimb at the Walk

Unusual Abduction of a Hindlimb

Other Mechanical Lamenesses

PART V: The Axial Skeleton

Chapter 49: Diagnosis and Management of Pelvic Fractures in the Thoroughbred Racehorse

Pelvic Anatomy

Diagnostic Techniques

Fractures of the Tuber Coxae

Fractures of the Ilial Wing

Fractures of the Ilial Shaft

Fractures of the Pubis and Ischium

Fractures Involving the Acetabulum

Principles of Treatment of Horses with Pelvic Fractures

Chapter 50: Lumbosacral and Pelvic Injuries in Sports and Pleasure Horses

Anatomical Considerations

Clinical Signs

Diagnostic Imaging

Differential Diagnosis

Chapter 51: Diagnosis and Management of Sacroiliac Joint Injuries

Anatomical and Functional Features

Pathological Conditions

Clinical Presentation

Physical Examination

Local Analgesia

Diagnostic Imaging

Differential Diagnosis

Treatment

Prognosis

ACKNOWLEDGMENT

Chapter 52: Thoracolumbar Spine

Anatomy and Function

Diagnosis of Back Pain

Imaging

Lesions

Prognosis

Specific Management

Training Management

Alternative Medicines

Surgery

Chapter 53: The Cervical Spine and Soft Tissues of the Neck

Anatomy

Reasons for Clinical Presentation

Clinical Examination

Imaging Considerations

Other Diagnostic Tests

Clinical Conditions

PART VI: Developmental Orthopedic Disease and Lameness

Chapter 54: Pathogenesis of Osteochondrosis

Osteochondrosis: Definitions and Terminology

Endochondral Ossification

Characteristics of Osteochondrosis

Relationship among Physeal Dysplasia (Physitis), Subchondral Bone Cysts, and Osteochondrosis

Proposed Causative Factors

Summary

Chapter 55: The Role of Nutrition in Developmental Orthopedic Disease:

Nutritional Factors as a Cause of Developmental Orthopedic Disease

Ration Evaluations

Feeding Practices that Contribute to Developmental Orthopedic Disease

Feeding Systems to Prevent Developmental Orthopedic Disease

Nutritional Management of Developmental Orthopedic Disease

Chapter 56: Diagnosis and Management of Osteochondrosis and Osseous Cystlike Lesions

Lesions in the Metacarpophalangeal and Metatarsophalangeal Joints

Lesions of the Proximal Interphalangeal Joint

Lesions of the Distal Interphalangeal Joint

Lesions of the Scapulohumeral Joint

Osteochondrosis of the Tarsocrural Joint

Lesions of the Stifle

Chapter 57: Physitis

Pathogenesis

Clinical Signs

Treatment

Chapter 58: Angular Limb Deformities

Diagnosis and Conservative Management

Surgical Management

Chapter 59: Flexural Limb Deformities in Foals

Congenital Flexural Deformities

Acquired Flexural Deformities

Chapter 60: Cervical Stenotic Myelopathy

Clinical Signs

Diagnosis

Conservative Management

Surgical Treatment

PART VII: Arthritis

Chapter 61: Osteoarthritis

Structure and Function of Normal Joints

Osteoarthritis

Chapter 62: Markers of Osteoarthritis: Implications for Early Diagnosis and Monitoring of the Pathological Course and Effects of Therapy

Structure and Metabolism of Articular Cartilage and Bone in Health and Disease

Individual Skeletal Biomarkers of Articular Cartilage Metabolism in Osteoarthritis

Individual Skeletal Biomarkers of Bone Metabolism in Joint Disease

Future of Biomarkers in Osteoarthritis

Chapter 63: Gene Therapy

Review of Components of Gene Therapy

Gene Therapy and Joint Disease

Use of Gene Therapy to Prevent Articular Cartilage Degradation in Osteoarthritis

Gene Therapy and Promotion of Cartilage Healing

Gene Therapy and Bone Healing

Chapter 64: Models of Equine Joint Disease

Complexity of Joint Disease

Types of Models

Chapter 65: Infectious Arthritis and Fungal Infectious Arthritis

Infectious Arthritis

Fungal Infectious Arthritis

Chapter 66: Noninfectious Arthritis

Joint Physiology

Joint Pathophysiology (Synovitis)

Pathological Joint Conditions Associated with Arthritis

Autoimmmune-Mediated Arthritis

Immune-Mediated Arthritis

Reactive Synovitis

Traumatic Synovitis

Proliferative (Villonodular) Synovitis

Idiopathic Arthritis

Hemarthrosis

Lyme Disease

Chapter 67: Other Joint Conditions

Diseases of Soft Tissues of the Joint

Neoplasia

Osteochondromatosis

PART VIII: The Soft Tissues

Chapter 68: Pathophysiology of Tendon Injury

Functional Anatomy of Equine Tendons and Ligaments

Functional Characteristics

Anatomical Structure

Chapter 69: Superficial Digital Flexor Tendonitis

Superficial Digital Flexor Tendonitis in Racehorses

Surgical Management of Superficial Digital Flexor Tendonitis

Superficial Digital Flexor Tendonitis in Event Horses, Show Jumpers, Dressage Horses, and Pleasure Horses

Chapter 70: The Deep Digital Flexor Tendon

Anatomy

Deep Digital Flexor Tendonitis Associated With Recurrent Desmitis of the Accessory Ligament of the Deep Digital Flexor Tendon

Deep Digital Flexor Tendonitis in the Carpal Sheath Secondary to Solitary Osteochondroma or a Distal Radial Physeal Exostosis

Deep Digital Flexor Tendonitis within the Digital Flexor Tendon Sheath in the Fetlock Region

Deep Digital Flexor Injuries in the Pastern Region

Lesions of the Deep Digital Flexor Tendon within the Hoof Capsule

Lesions of the Deep Digital Flexor Tendon in the Tarsal and Proximal Metatarsal Regions

Infection of the Deep Digital Flexor Tendon

Chapter 71: Injuries of the Accessory Ligament of the Deep Digital Flexor Tendon

Anatomy

Pathogenesis

History and Clinical Signs

Ultrasonography

Treatment

Chapter 72: The Suspensory Apparatus

Anatomy and Pathophysiology

Proximal Suspensory Desmitis in the Forelimb

Proximal Suspensory Desmitis in the Hindlimb

Avulsion Fractures of the Third Metacarpal or Metatarsal Bone at the Origin of the Suspensory Ligament

Suspensory Desmitis: Body Lesions

Suspensory Desmitis Associated with an Exostosis on the Second or Fourth Metacarpal or Metatarsal Bone (Splint)

Suspensory Desmitis Associated with Fracture of the Distal Third of the Second or Fourth Metacarpal or Metatarsal Bone

Suspensory Desmitis: Branch Lesions

Proximal Sesamoid Bone Fracture Associated with a Branch Injury

Avulsion Fracture of a Proximal Sesamoid Bone at the Insertion of the Palmar Annular Ligament

Damage of the Palmar (Plantar) Ligament of the Fetlock (Intersesamoidean Ligament)

Infection of the Axial Aspect of the Proximal Sesamoid Bones

Straight Sesamoidean Desmitis

Oblique (Middle) Sesamoidean Desmitis

Progressive Atraumatic Breakdown of the Suspensory Ligaments

Traumatic Disruption of the Suspensory Apparatus

Chapter 73: Clinical Use of Stem Cells, Marrow Components, and Other Growth Factors

Stem Cell Therapies

Growth Factor–Based Biologics

Chapter 74: Diseases of the Digital Flexor Tendon Sheath, Palmar Annular Ligament, and Digital Annular Ligaments

Anatomical Considerations

Diagnostic Techniques

Imaging of the Digital Flexor Tendon Sheath

Diseases of the Digital Flexor Tendon Sheath

Palmar Annular Ligament Syndrome

Diseases of the Intersesamoidean (Palmar) Ligament of the Fetlock

Diseases of the Digital Annular Ligaments

Synovial Ganglion or Hernia of the Digital Flexor Tendon Sheath

Tendonitis of the Superficial and Deep Digital Flexor Tendons within the Digital Flexor Tendon Sheath

Chapter 75: The Carpal Canal and Carpal Synovial Sheath

Anatomy

Clinical Signs

Idiopathic Synovitis

Intrathecal Hemorrhage

Trauma Resulting in Chronic Enlargement of the Carpal Sheath

Desmitis of the Accessory Ligament of the Superficial Digital Flexor Tendon

Superficial Digital Flexor Tendonitis

Injury of the Superficial Digital Flexor Tendon at the Musculotendonous Junction

Injury of the Flexor Retinaculum

Deep Digital Flexor Tendonitis

Solitary Osteochondroma

Distal Radial Physeal Exostoses

Fractures of the Accessory Carpal Bone

Chapter 76: The Tarsal Sheath

Functional Anatomy

Causes of Tarsal Tenosynovitis

Diagnosis of Tarsal Sheath Injuries

Management of Tarsal Tenosynovitis

Chapter 77: Extensor Tendon Injury

Anatomy

Diagnostic Techniques

Conditions Affecting the Extensor Tendons

Rupture of the Extensor Carpi Radialis Tendon

Conditions Affecting the Extensor Tendon Sheaths

Chapter 78: Curb

Clinical Appearance of Curb

Applied Anatomy and Normal Ultrasonographic Examination of the Plantar Aspect of the Tarsus

Curb: A Collection of Soft Tissue Injuries3

Chapter 79: Bursae and Other Soft Tissue Swellings

Supraspinous Bursa

Intertubercular (Bicipital) Bursa

Hygroma

Navicular Bursa

Trochanteric Bursa

Calcaneal Bursa

Subcutaneous Abscess over the Tuber Calcanei

Gastrocnemius Bursa

Capped Hock

Cunean Bursa

Capped Elbow

Acquired Bursa on the Dorsal Aspect of a Hind Fetlock

False Thoroughpin

Chapter 80: Other Soft Tissue Injuries

Rupture of the Fibularis (Peroneus) Tertius

Common Calcaneal Tendonitis

Gastrocnemius Tendonitis

Disruption of the Gastrocnemius in Neonatal Foals

Subluxation and Luxation of the Superficial Digital Flexor Tendon from the Tuber Calcanei

Biceps Brachii Tendonitis

Infection of the Common Digital Extensor Tendon

Chapter 81: Tendon Lacerations

Diagnosis

Emergency Management

Medical Management

Surgical Treatment

Convalescent Therapy

Prognosis

Chapter 82: Soft Tissue Injuries of the Pastern

Anatomy

Ultrasonographic Anatomy

Tendon and Ligament Injuries

Soft Tissue Swelling

Tenosynovitis of the Digital Flexor Tendon Sheath

Abnormalities of the Pastern Joint

Neuritis/Neuroma

Chapter 83: Skeletal Muscle and Lameness

Nutritional Myopathies

Hyperkalemic Periodic Paralysis

PART IX: Therapeutics

SECTION 1: Traditional Therapy

Chapter 84: Principles and Practices of Joint Disease Treatment

Medical Treatment

Newer Biologically Based Therapies

Surgical Treatment

Chapter 85: Analgesia and Hindlimb Lameness

Epidural Analgesia

Technique for Epidural Administration

Epidural Catheter Placement

Drug Selection

Clinical Applications

Contraindications and Complications

Novel Analgesic Drugs and Adjunctive Therapies

Chapter 86: Bandaging, Splinting, and Casting

Stable and Traveling Bandages

Bandaging Wounds

Transport of an Injured Horse

Cast Bandage

Cast Application

Chapter 87: External Skeletal Fixation

History and Development

Preoperative Planning, Indications, Tips, and Limitations

Postoperative Care

Removing the External Skeletal Fixation Device

Results of Treatment (2008)

Chapter 88: Counterirritation

Brief History and Outline of Techniques

Blistering

Cautery or Firing

Chapter 89: Cryotherapy

Mechanisms of Cryonecrosis

Basic Technique

Treatment of Specific Lesions

Chapter 90: Radiation Therapy

Radiobiological Aspects

Irradiation Techniques

Clinical Applications

Chapter 91: Rest and Rehabilitation

Principles of Rest and Rehabilitation Programs

Rest

Exercise

SECTION 2: Complementary (Nontraditional) Therapy

Chapter 92: Acupuncture

Equine Acupuncture for Lameness Diagnosis and Treatment

Acupuncture Channel Palpation and Equine Musculoskeletal Pain

Chapter 93: Chiropractic Evaluation and Management of Musculoskeletal Disorders

Manual Therapy and Chiropractic

Practitioner Qualifications

History of Equine Chiropractic

Complementary Approaches

Pathophysiology and Mechanisms of Action

Equine Chiropractic Research

Clinical Evaluation

Indications for Chiropractic Care

Contraindications

Chiropractic Techniques

Complications or Adverse Effects

Adjunct Recommendations and Prognosis

Summary

Chapter 94: Electrophysical Agents in Physiotherapy

Electrotherapeutic Windows

Therapeutic Ultrasound

Pulsed Electromagnetic Field Therapy

Contraindications

Laser Therapy

Electrical Stimulation

Chapter 95: Osteopathic Treatment of the Axial Skeleton of the Horse

Neurophysiological Basis of Osteopathy

Effects of Osteopathic Treatment

Diagnosis and Case Selection for Osteopathic Treatment

Infrared Thermographic Imaging

Treatment

Results of Treatment

Chapter 96: Shock Wave Therapy

Historical Perspective

Shock Wave Generators

Dose Dependence

Applications

Suspensory Desmitis

Superficial Digital Flexor Tendonitis

Additional Applications

PART X: Lameness in the Sports Horse

SECTION 1: Poor Performance

Chapter 97: Poor Performance and Lameness

Challenge of Assessment

History

Clinical Assessment

Common Performance Problems

Chapter 98: Experiences Using a High-Speed Treadmill to Evaluate Lameness

Criteria for Case Selection

History

Equipment

Preparation of the Horse and Safety Considerations

Lameness Diagnosis

Additional Tests

SECTION 2: The Racehorse

Chapter 99: The Sales Yearling

Purchase Examination of A Thoroughbred Sales Yearling in North America

Purchase Examination of A Thoroughbred Sales Yearling in Europe

North American Standardbred Sales Yearling

Chapter 100: Pathophysiology and Clinical Diagnosis of Cortical and Subchondral Bone Injury

Pathophysiology

Clinical Examination

Diagnostic Analgesia

Diagnostic Imaging

Specific Locations of Cortical and Subchondral Bone Injury

Chapter 101: Bone Biomarkers

Biomarkers That Reflect Changes in Bone Formation

Biomarkers That Measure Changes in Bone Resorption

Factors That Influence Biochemical Markers of Bone Cell Activity in Horses

Clinical Applications for Bone Biomarkers

Effects of Exercise on Bone Biomarkers

Monitoring Responses to Therapy

Chapter 102: The Bucked-Shin Complex

Etiology, Pathogenesis, and Conservative Management

Stress Fractures of the Third Metacarpal Bone: Surgical Management

Chapter 103: On-the-Track Catastrophes in the Thoroughbred Racehorse

Regulatory Veterinarian

Management Considerations

Equipment

Medication

Training Injuries

Public Relations and Media Issues

Racing Injuries

Regulatory Considerations

Euthanasia and Insurance

Chapter 104: Catastrophic Injuries

Types of Catastrophic Injuries

Chapter 105: Track Surfaces and Lameness: Epidemiological Aspects of Racehorse Injury

Racing Surfaces

Training Surfaces

Future Directions

Chapter 106: The North American Thoroughbred

Description of the Sport

Conformation

Track Surface and Lameness

Medication and Drug Testing Considerations

Lameness Examination

Imaging Considerations

Shoeing

Inability to Make a Diagnosis

Ten most Common Lameness Conditions

Specific Lameness Conditions

Chapter 107: The European Thoroughbred

History of Horse Racing in the United Kingdom

Pattern of Racing

Comparisons with Racing in North America

Training Regimens in Europe

Clinical History

Ten Most Common Lameness Conditions

Chapter 108: The North American Standardbred

Description of the Sport

Training

Lameness and Poor Racing Performance

Track Surface and Lameness

Track Size and Lameness

Conformation

Distribution of Lameness

Lameness in the Young Standardbred

Clinical History

Lameness Examination

Diagnostic Analgesia

Imaging Considerations

Proceeding Without a Diagnosis

Shoeing and Lameness

Specific Lameness Conditions of the Standardbred Racehorse

Chapter 109: The European and Australasian Standardbreds

The European Standardbred

The Australasian Standardbred

Chapter 110: The Racing Quarter Horse

History and Description of the Sport

Training the Racing Quarter Horse

Lameness Related to Track Surface

Conformation Relating to Lameness

Lameness Examination

Imaging Considerations

Shoeing

Ten Most Common Lameness Conditions of the Racing Quarter Horse

Specific Lameness Conditions

Chapter 111: Lameness in the Arabian Racehorse: Middle East and North America

History of Racing

Ten most Common Racing-Related Lameness Conditions in the Middle East Arabian Racehorse

Ten most Common Racing-Related Lameness Conditions in the North American Arabian Racehorse

Metacarpophalangeal Joint Lameness and Carpal Osteochondral Fragmentation

Superficial Digital Flexor Tendonitis

Suspensory Desmitis

Tarsocrural Osteochondrosis and Distal Hock Joint Pain

Lameness of the Foot

Myopathy

Stifle and Carpal Lameness

Back Pain

Dorsal Third Metacarpal Bone Disease

Fractures of Various Bones, Including Stress Fractures

Proceeding without a Diagnosis

Chapter 112: National Hunt Racehorse, Point to Point Horse, and Timber Racing Horse

Description of the Sport

National Hunt Horses

Training National Hunt Horses

Racing National Hunt Horses

Timber Racing

Track Surface or Training Surface and Lameness

Conformation and Lameness

Lameness Examination

Diagnostic Analgesia

Imaging Considerations

Proceeding without A Diagnosis

Shoeing Considerations and Lameness

The Ten Most Common Causes of Lameness in Steeplechasers, Hurdlers, and Point to Point Horses

Diagnosis and Management of Lameness in Steeplechasers, Hurdlers, and Point to Point Horses

The Ten Most Common Causes of Lameness in Timber Racing Horses

Diagnosis and Management of Lameness in Timber Racing Horses

Chapter 113: The Finnish Horse and Other Scandinavian Cold-Blooded Trotters

History of the Breeds

Training a Cold-Blooded Trotter

Racetracks and Weather Conditions

Shoeing Considerations

Conformation and Lameness

Lameness Examination

Imaging Considerations

Undiagnosed Lameness

Ten Most Common Causes of Lameness

Lameness Conditions Typical of Finnhorses

SECTION 3: Nonracing Sports Horses

Chapter 114: Prepurchase Examination of the Performance Horse

Goals of the Examination

Contract

Communication with the Vendor

Examination at a Distance

Clinical Examination at Rest

Assessment of Gait

Evaluation of Identified Problems

Rectal Examination

Radiographic Examination

Nuclear Scintigraphic Examination

Ultrasonographic Examination

Thermographic Examination

Magnetic Resonance Imaging

Blood Tests

Nerve Blocks

Summary of Observations

Guidelines for Reporting Prepurchase Examinations

Chapter 115: Lameness in the Show Hunter and Show Jumper

Historical Perspective

Structure of the Sport

Characteristics of the Jumping Sports Horse

Training

Training and Competition Surfaces

Conformation and Lameness

Shoeing Considerations

Lameness Examination

Imaging Considerations

Failure to Make a Diagnosis

Treatment

Ten Most Common Lameness Problems of Show Hunters and Show Jumpers

Diagnosis and Management of Common Causes of Lameness

Chapter 116: Lameness in the Dressage Horse

The Sport

The Dressage Horse

Training Surfaces

Tack

Lameness Examination

Diagnostic Analgesia

Imaging Considerations

Ten Most Common Lameness Conditions in Dressage Horses

Proximal Suspensory Desmitis: Hindlimbs

Proximal Suspensory Desmitis: Forelimbs

Desmitis of the Suspensory Ligament Branches: Forelimbs and Hindlimbs

Synovitis or Osteoarthritis of the Distal Interphalangeal Joint

Desmitis of the Accessory Ligament of the Deep Digital Flexor Tendon: Forelimbs

Desmitis of the Accessory Ligament of the Deep Digital Flexor Tendon: Hindlimbs

Osteoarthritis of the Centrodistal and Tarsometatarsal Joints

Synovitis of the Middle Carpal Joint

Synovitis or Osteoarthritis of the Metatarsophalangeal and Metacarpophalangeal (Fetlock) Joints

Palmar or Plantar Annular Ligament Desmitis

Tenosynovitis of the Digital Flexor Tendon Sheath

Proximal Palmar Cortical Stress Fracture of the Third Metacarpal Bone

Thoracolumbar and Sacroiliac Pain

Chapter 117: Lameness in the Three Day Event Horse

Sport of Eventing

Horse Types

Influence of the Sport on Lameness

Training Methods

Conformation and Lameness

Clinical History

Lameness Examination

Diagnostic Analgesia

Imaging Considerations

Saddle Pressure Analysis

Proceeding without a Diagnosis

Shoeing Considerations

Tack Considerations

Ten Most Common Lameness Conditions

Diagnosis and Management of Lameness

Prevention of Lameness

Chapter 118: Lameness in Endurance Horses

Evolution of Endurance

Description of the Sport

Veterinary Controls

Type of Horse

Training Methods and Competition Speeds

Course Terrain

Lameness and Conformation

The Lameness Examination and Proceeding without a Diagnosis

Common Causes of Lameness in Endurance Horses

Proximal Palmar Metacarpal Pain

Foot Problems

Metacarpophalangeal and Metatarsophalangeal Osteoarthritis, Capsulitis, Synovitis, and Periarticular Pathology

Stress Pathology of the Distal Aspect of the Third Metacarpal or Third Metatarsal Bone

Superficial Digital Flexor Tendonitis

Paravertebral and Gluteal Myalgia

Osteoarthritis of the Distal Hock Joints

Desmitis of the Suspensory Body and Branches

Other Bone Injury

Exertional Myopathy

Metabolic Problems

Chapter 119: Lameness in the Polo Pony

History of the Sport

Polo as an Industry

Lameness Examination

Undiagnosed Lameness

Imaging Considerations

Ten Most Common Lameness Problems in Polo Ponies

Superficial Digital Flexor Tendonitis

Metacarpophalangeal (Fetlock) Osteoarthritis

Suspensory Desmitis

Injury to the Hoof and Distal Phalanx

Palmar Foot Pain Including Navicular Disease

Distal Interphalangeal Osteoarthritis

Desmitis of the Accessory Ligament of the Deep Digital Flexor Tendon

Splint Bone Disease

Distal Hock Joint Pain

Gluteal Myositis and Back Pain

Other Conditions

Chapter 120: The Western Performance Horse

The Cutting Horse

The Roping Horse

The Reined Cow Horse

Barrel-Racing Horses

The European Western Performance Horse

The Racing Quarter Horse

Chapter 121: Walking Horses

Description of the Sport

Lameness Examination

Chapter 122: Lameness in the American Saddlebred and Other Trotting Breeds with Collection

Description of the Sport

American Saddlebred

Saddlebred Gaits

Lameness Examination

Diagnostic Analgesia

Imaging Considerations

Shoeing Gaited Horses

Ten Most Common Lameness Conditions

Specific Lameness Conditions

Other Lameness Conditions

Chapter 123: Lameness in the Arabian and Half-Arabian Show Horse

History of the Arabian

History of the Sporting Event

Training: Impact of Industry

Conformation and Lameness

Lameness Examination

Static Examination

Dynamic Examination

Diagnostic Analgesia

Neurological Examination

Undiagnosed Lameness

Ten Most Common Lameness Conditions of the Arabian and Half-Arabian Show Horse

Diagnosis and Management of Lameness

Chapter 124: Lameness in the Driving Horse

Description of the Sport

Types of Horses Used

Training

Ground Conditions

Conformation

Lameness Examination

Diagnostic Analgesia

Imaging Considerations

Difficulties in Diagnosis

Shoeing

Ten Most Common Lameness Conditions

Diagnosis and Management of Lameness

Chapter 125: Lameness in Draft Horses

Modern-Day Draft Horses

Lameness Examination

Ten Most Common Lameness Problems

Lameness Common to the Forelimb and Hindlimb

Lameness of Foals, Weanlings, and Yearlings

Chapter 126: Lameness in the Pony

Lameness Affecting the Pony

Lameness Examination

Diagnostic Analgesia

Imaging Considerations

Ten Most Common Conditions Affecting Competition Ponies

Limb Deformities

Joint Disease

Fractures

Foot-Related Problems

Laminitis

Soft Tissue Injuries

Wounds

Other Conditions

Chapter 127: Lameness in Breeding Stallions and Broodmares

The Stallion

Broodmare

Chapter 128: Lameness in Foals

Evaluation of a Lame Foal

Noninfectious Causes of Lameness

Infectious Causes of Lameness

Chapter 129: Pleasure Riding Horse

References

Index

Legends for color insert figures

Video Segments on Companion Website

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