Krishna Shared "Musculoskeletal Pathologies" - 18 Picmonics

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Musculoskeletal Pathologies

Developmental Dysplasia of the Hip
Cause
Abnormal Femoral Head in Acetabulum
Newborn Assessment
Positive Barlow Sign
Clicking with Adduction
Positive Ortolani Sign
Clicking with Abduction
Asymmetrical Limb Lengths and Folds (Gluteal and Thigh)
Older Child Assessment
Trendelenburg Sign
Interventions
Abduction Device
Pavlik Harness
Closed Reduction
3 mins
Slipped Capital Femoral Epiphysis (SCFE)
Pathophysiology
Separation of Femoral Epiphysis from Femoral Neck
Through Growth Plate (Physeal Plate)
Obesity
Male Adolescents
African American
Growth and Sex Hormone Imbalances
Signs & Symptoms
Thigh or Knee Pain
Inability to Bear Weight
Decreased Internal Rotation of Hip
Obligate External Rotation of Hip with Flexion
Diagnosis
Frog Leg Lateral X-ray
Treatment
Surgical Pinning
Complications
Avascular Necrosis of Femoral Head
3 mins
Muscular Dystrophy
Mechanism
X-linked Recessive
Signs and Symptoms
Muscle Weakness
Motor Problems
Gower Sign
Large Calves
Waddling Gait
Loss of Ambulation
Consideration
Cardiac and Respiratory Failure
2 mins
Myotonic Dystrophy
Pathophysiology
Autosomal Dominant
Trinucleotide Repeat
CTG
Signs and Symptoms
Facial Muscle Weakness
Frontal Balding
Sustained Grip
Conduction Defects
Cataracts
Selective Atrophy of Type 1 Fibers
Testicular Atrophy
2 mins
Amyotrophic Lateral Sclerosis (ALS)
Assessment
Progressive Muscle Weakness
Systemic Muscle Wasting
Fasciculations
Spasticity
Fatigue
Considerations
Riluzole (Rilutek)
Moderate Exercise
No Cognitive Decline
Respiratory Support
Palliative Care
2 mins
Marfan Syndrome
Mechanism
Fibrillin-1 Mutation
Symptoms
Autosomal Dominant
Tall
Arachnodactyly
Pectus Excavatum
Hypermobile Joints
Aortic Aneurysm And Dissection
Mitral Valve Prolapse (MVP)
Subluxation of Lens (Superior)
2 mins
Ehlers-Danlos Syndrome Disease
Pathophysiology
Faulty Collagen Synthesis
Autosomal Dominant or Recessive
Various Severities
Signs and Symptoms
Hypermobile Joints
Hyperextensible Skin
Easy Bruising/Bleeding
Berry (Saccular) Aneurysm
Considerations
Beighton Criteria
2 mins
Polymyositis / Dermatomyositis Disease
Pathophysiology
Idiopathic Inflammatory Myopathy
More Common in Women
Endomysial Inflammation with CD8+ Cells (Polymyositis)
Perimysial Inflammation with CD4+ Cells (Dermatomyositis)
Signs and Symptoms (Both)
Symmetric Proximal Muscle Weakness
Dysphagia
Lung and Cardiac Involvement
Signs and Symptoms (Dermatomyositis)
Malar Rash
Shawl-like Shoulder Rash
Gottron Papules on Knuckles
Heliotrope Rash
3 mins
Polymyositis / Dermatomyositis Diagnosis and Treatment
Diagnosis
Increased CK (CPK)
Increased Aldolase
Anti-JO-1 Antibody
Anti-SRP Antibody
Antinuclear Antibody
Abnormal EMG
Biopsy
Treatment
Corticosteroids
Methotrexate
Azathioprine
Treatment For Resistant Disease
Intravenous Immunoglobulin (IVIG)
Cyclophosphamide
Rituximab
Calcineurin Inhibitors
2 mins
Myasthenia Gravis
Mechanism
Antibodies to Acetylcholine Receptor
Symptoms
Ptosis
Diplopia
Weakness with Muscle Use
Respiratory Death
Thymus Associated
Treatment
Acetylcholinesterase Inhibitors
Plasmapheresis
Thymectomy
1 min
Lambert-Eaton Syndrome
Mechanism
Autoantibody to the Presynaptic Calcium Channel on Motor Neurons
Inhibits Acetylcholine (ACh) Release at Neuromuscular Junction
Paraneoplastic Syndrome
Small Cell Lung Cancer
Symptoms
Proximal Muscle Weakness
Improves with Muscle Use
Autonomic Symptoms
Extraocular Muscle Sparing
2 mins
Clostridium botulinum
Characteristics
Bacillus
Gram-Positive
Anaerobe
Spore-Forming
Heat Labile Toxin
Inhibits Acetylcholine (Ach) Release at Neuromuscular Junction (NMJ)
Canned Food in Adults
Spores in Honey
Signs and Symptoms
Descending Flaccid Paralysis
Diplopia
Ptosis
Floppy Baby
Constipation
2 mins
Osteosarcoma
Pathophysiology
Osteogenic Sarcoma
Peak incidence men 10-20 years old
Metaphysis of Long Bones
Knee Region
Radiation
Familial Retinoblastoma
Paget's Disease
Diagnosis
Codman Triangle
Sunburst Pattern from Elevated Periosteum
Grave Prognosis
2 mins
Chondrosarcoma
Pathophysiology
Cartilaginous tumor
Malignant
Men 30-60 years old
Pelvic and femur bones
Signs & Symptoms
Glistening mass in medullary cavity
Can be primary in origin or from osteochondroma
Metastasize to lungs
1 min
Giant Cell Tumor
Pathophysiology
Osteoclastoma
Epiphyseal End of Long Bones
Peak Incidence 20-40 Years
Benign
Knee Region
Diagnosis
Soap Bubble Appearance on X-ray
Spindle-shaped Cells
Multinucleated Giant Cells
46 secs
Ewing's Sarcoma
Epidemiology
Most Common in Boys < 15 years old
Pathophysiology
11;22 Translocation
Characteristics
Long bones, Pelvis, Ribs
Diaphysis
Small Blue Cells
Malignant
Aggressive
Onion-skin Appearance
TREATMENT
Responsive to Chemotherapy
2 mins
Chlorpromazine (Thorazine)
Mechanism
Low Potency Antipsychotic
Indications
Schizophrenia
Hiccups
Side Effects
Sedation
Weight Gain
Orthostatic Hypotension
Anticholinergic Effects
QT Prolongation
Neuroendocrine Effects
Caution in Seizure Patients
Corneal Deposits
2 mins
Clozapine (Clozaril)
Mechanism
Atypical Antipsychotic
Indications
Schizophrenia
Levodopa-Induced Psychosis
Side Effects
Weight Gain
Hypersalivation (Sialorrhea)
Myocarditis
Agranulocytosis
Sedation
Orthostatic Hypotension
Constipation (Risk of Bowel Ileus)
Considerations
Weekly Lab Tests
2 mins

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