11 results
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
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
Causes of Knee Effusions ... - Differential ... Intra-articulation fracture ... - Aneurysmal bone ... diagnosis #msk #
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Lower Extremity ... Reflexes: • Knee ... • Cauda Equina Syndrome ... Commonly caused ... such as fibular fracture
Leg Pain - Differential Diagnosis Framework

Bone/Joint Causes of Leg Pain:
 • Fracture
 • Arthritis
 • Gout/pseudogout
Leg Pain - Differential ... Diagnosis Framework Bone ... Leg Pain: • Fracture ... cyanosis - Cool extremity ... #msk #physicalexam
Posterior Knee Dislocation Injury
Specifically, POSTERIOR KNEE DISLOCATIONS can have significant associated injury that needs unique approach
Fractures-> Femur ... for associated fracture ... Avulsion fractures ... SEGOND FRACTURE: ... Avulsion fracture
Subchondral Insufficiency Fracture
Imaging Findings:
 • Circle demarcating the region of edema within the medial femoral condyle.
Insufficiency Fracture ... the subchondral bone ... Osteonecrosis of the Knee ... Differential diagnosis ... ) - Fracture line
Spinal Cord Disorders - Differential Diagnosis Framework

Spinal cord neurological lesion:
Clinical findings:
 • Symptoms and signs below
Cord Disorders - Differential ... compression by fractured ... vertebral body ... Non-compressive Spinal Cord Causes ... MCTD, Sjogren syndrome
Transient Patellar Dislocation - MSK Radiology
Imaging Findings:
 • Hyperintense marrow edema of the anterolateral femoral condyle
Dislocation - MSK ... Can get chondral fractures ... Differential diagnosis ... : • Patella fracture ... with or without a fracture
Nonossifying Fibroma with Pathologic Fracture - MSK Radiology
Imaging Findings:
 • Cortically based, geographic, lucent lesion with
with Pathologic Fracture ... nondisplaced linear fracture ... of pathologic fracture ... Differential diagnosis ... #Fibroma #NOF #Fracture
Amyotrophic Lateral Sclerosis (ALS) Summary
ALS: combination of the clinical examination finding of amyotrophy with the pathologic
- Causes progressive ... Can involve any body ... , lower extremity ... conditions listed in differential ... #diagnosis #management