30 results
Systemic Lupus Erythematosus (SLE): Musculoskeletal Manifestations

 • Immune Complex Deposition
    - Arthralgia, Arthritis
- Myositis ... Weakness, Incr CK ... Myopathy (Also caused ... Erythematosus #SLE #MSK ... pathophysiology #signs #symptoms
Autoimmune Myositis
Necrotizing myopathy is associated with higher CK levels, greater level of muscle weakness, less systemic
Autoimmune Myositis ... associated with higher CK ... greater level of muscle ... less systemic symptoms ... triad of ILD, myositis
Creatine Kinase - Causes of Elevated CK Levels
Acute CK Elevation (Pain > Weakness):
 • RHABDOMYOLYSIS
Creatine Kinase - Causes ... of Elevated CK ... Subacute to Chronic Causes ... ): • PROXIMAL MUSCLE ... Inclusion body myositis
Statin Induced Muscle Toxicity - Summary

Clinical Presentation:
 • Elevations of serum creatine kinase with proximal myalgia
Symptoms (SAMS) ... symptoms: weeks ... • Myalgia • Myositis ... inclusion body myositis ... Diagnosis: • CK
Chronic Joint Pain - Differential Diagnosis Algorithm 
Intra-Articular
 - Bone
     • Stress
Fasciitis) - Muscle ... Fibromyalgia • Myositis ... Intraarticular #MSK ... Diagnosis #Algorithm #Orthopedics ... #Causes
Anterior Shoulder Dislocation: Pathogenesis, clinical, and radiographic findings

Trauma, Fall on, outstretched arm, Overhead throwing => Abduction
tensile strength of muscle ... damage to nerves, muscles ... Diagnosis #signs #symptoms ... #msk #orthopedics
Autoimmune Myositis - Differential Diagnosis Framework

Inflammatory Myopathies: Commonly symmetric proximal muscle weakness, no substantial muscle pain
Autoimmune Myositis ... Tests: • Measure CK ... (symmetric) • CK ... weakness • CK ... statins - probably caused
Causes of Neuromuscular Weakness
 • Spinal Cord: Demyelinating Disease (MS), Epidural abscess, Infarction, Syringomyelia, Tetanus, Transverse
Causes of Neuromuscular ... Demyelinating Disease (MS ... Tetanus, Transverse Myelitis ... aminoglycosides) • Muscles ... Neuromuscular #Weakness #Causes
Pathologic / Fragility Fractures - Differential Diagnosis Algorithm 
Tumours
 - See Bone Lesions Scheme
Paget's Disease
 -
Pain/Proximal Muscle ... Fractures #Pathologic #MSK ... Diagnosis #Algorithm #Orthopedics ... #Causes
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
findings: • Symptoms ... Hyperreflexia - Muscle ... equina- decreased muscle ... Non-compressive Spinal Cord Causes ... - Transverse myelitis