54 results
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity ... Motor Function Shoulder ... Anterior Shoulder ... #UpperLimb #Extremity ... sensory #motor #arm #physicalexam
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Bone/Joint Causes ... Leg Pain: • Fracture ... cyanosis - Cool extremity ... diagnosis #lower #extremity ... #msk #physicalexam
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... • Cauda Equina Syndrome ... Commonly caused ... such as fibular fracture ... sensory #motor #leg #physicalexam
Humeral Avulsion of the Inferior Glenohumeral Ligament (HAGL)
 • Imaging Findings:
 • Large defect of the
Case description ... HAGL) can be a cause ... BHAGL): Avulsion fracture ... #clinical #mri ... Radiology #diagnosis #msk
Vascular Joint Pain - Differential Diagnosis Algorithm 
 - Constant Pain (Ischemia)
 - Acute Onset
 -
Embolism (e.g. fractured ... Vessel (dislocation/fracture ... Marfan's Syndrome ... Vascular #JointPain #MSK ... #Orthopedics #Causes
Hippocratic Shoulder Reduction 
Shoulder reduction is the process of returning the shoulder to its normal position
Hippocratic Shoulder ... In cases where closed ... of associated fractures ... #Reduction #MSK ... #PhysicalExam #
Cauda Equina Syndrome Overview

Cauda Equina Syndrome:
 • Prevalence: 1:33,000-100,000 ppl/yr
 • Incidence: 1.5-3.4 million ppl/yr
 •
- Emergency Causes ... distinguishing feature ... or absent lower extremity ... Imaging studies: • MRI ... differential #diagnosis #causes
Evaluation of Electrical Injury in the Emergency Department 

Common Injuries by System:

CNS - Seizure, coma, spinal
ED arrival MSK ... - Fractures, dislocations ... (posterior shoulder ... compartment syndrome
Causes of Growth Discrepancy: Large for Gestational Age - Differential Diagnosis Algorithm
Maternal Factors:
 • Multiparity
 •
Causes of Growth ... Sotos syndrome, ... Complications: • Shoulder ... injury, clavicular fracture ... Diagnosis #Algorithm #Causes
Adhesive Capsulitis (Frozen Shoulder) - Pathogenesis and Clinical Findings

 • Primary (Idiopathic): Unknown etiology, but associated
Capsulitis (Frozen Shoulder ... , humeral head fracture ... ) or Prolonged shoulder ... a stroke that caused ... stages #staging #msk