10 results
Anatomy of the Knee X-ray - AP projection. ⁣⁣
It’s important to be able to identify the
Anatomy of the Knee ... it, think of a fracture ... To asses the patella ... #xray #clinical ... ap #radiology #msk
Trendelenburg Gait: Pathogenesis and clinical findings

Skeletal Pathology of the Hip
 • Arthritis
 • Congenital hip dysplasia
Chondrodysplasia Neurologic ... Greater Trochanter Fracture ... Valgus position of knee ... pathophysiology #causes ... signs #diagnosis #msk
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Reflexes: • Knee ... Commonly caused ... such as fibular fracture ... Myotomes #diagnosis #neurology ... sensory #motor #leg #physicalexam
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain: • Fracture ... pseudogout • Trauma ... Red Flags: • Trauma ... lower #extremity #msk ... #physicalexam
Stridor - Differential Diagnosis Framework:
High-pitched, variable respiratory sound

ETIOLOGIES:
Infectious:
 • Retropharyngeal abscess
 • Acute epiglottitis
 • Peritonsillar
Ludwig's angina Trauma ... Mechanical: • Larynx fracture ... differential #diagnosis #causes ... #pulmonary #airway ... #physicalexam
Lesions of the Spinal cord - Spinal Cord Syndromes

Spinal cord lesions can result in permanent neurologic
result in permanent neurologic ... other forms of trauma ... anterior horn gray ... Vertebral burst fracture ... herniation - Trauma
Posterior Knee Dislocation Injury
Specifically, POSTERIOR KNEE DISLOCATIONS can have significant associated injury that needs unique approach
DISLOCATION: ~25% cases ... Neurologic deficit ... Neurologic injuries ... Consider trauma/ ... Posterior #Injury #msk
Positive Posterior Drawer Test in Total Knee Arthroplasty 

73 yo M with hx of L TKA
Test in Total Knee ... + post drawer Xrays ... Intra-op: Fractured ... Drawer #Test #TKA #MSK ... #physicalexam #
Authors: Mark M. Ramzy, DO, EMT-P (@MarkRamzyDO, EM Resident Physician, Drexel University, Department of Emergency Medicine)
suffered no head trauma ... arise from blunt trauma ... following chest trauma ... Pulmonary Contusion ... Most commonly caused
Causes of Myoclonus - Differential Diagnosis
LOCALIZATION:
 • Cortical: Focal/multifocal: Distal UL+ Face, Action/sensitive induced
 • Sub-Cortical:
Causes of Myoclonus ... , post stroke, trauma ... Inflammatory (MS ... hepatic, septic, pulmonary ... #neurology