31 results
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 Diagnosis ... fracture - Patellar dislocation ... #Effusions #causes ... #msk #physicalexam
Mytomes - Segmental Innervation of Muscles
Shoulder	Abduction	C5	Axillary Nerve
Shoulder	Adduction	C6-C8	Thoracodorsal Nerve
Elbow	Flexion	C5	Musculocutaneous Nerve
Elbow	Extension	C7	Radial Nerve
Wrist	Extension	C6	Radial Nerve
Fingers	Flexion	C8	Median Nerve
Fingers	Abduction	T1	Ulnar Nerve
Hip	Flexion	L2	Nerve to Psoas
Hip	Extension	S1	Inferior Gluteal
Gluteal Nerve Knee ... Tibial Nerve Knee ... #MuscleGroups #MSK ... #Orthopedics #Neurology ... #Diagnosis
Osgood-Schlatter Disease - MSK Radiology
Imaging Findings:
 • Infrapatellar fat-pad edema with loss of the patellar tendon
Osgood-Schlatter Disease - MSK ... • MRI is more sensitive ... Schlatter #Disease #Knee ... patella #clinical #mri ... #msk
Trendelenburg Gait: Pathogenesis and clinical findings

Skeletal Pathology of the Hip
 • Arthritis
 • Congenital hip dysplasia
Chondrodysplasia Neurologic ... Fracture • Hip dislocation ... Valgus position of knee ... pathophysiology #causes ... #msk
Vascular Joint Pain - Differential Diagnosis Algorithm 
 - Constant Pain (Ischemia)
 - Acute Onset
 -
- Differential Diagnosis ... Trauma to Vessel (dislocation ... Vascular #JointPain #MSK ... #Algorithm #Orthopedics ... #Causes
Pes Anserine Bursitis - MSK Radiology
Imaging Findings:
 • T2-hyperintense fluid-like signal along the medial aspect of
Anserine Bursitis - MSK ... aspect of the knee ... Case description ... #clinical #mri ... #msk
Focal Periphyseal Edema (FOPE lesion) - MSK Radiology
Imaging Findings:
 • Arrows identifying the characteristic edema-like signal
FOPE lesion) - MSK ... atraumatic adolescent knee ... repeated follow-up MRI ... lesion #clinical #mri ... #msk
Patellar dislocation 
Patella dislocation refers to when the kneecap is completely displaced out of its normal
patella is primarily caused ... direct blow) to the knee ... while bending your knee ... PhysicalExam #Sports #Orthopedics ... #Knee #msk
Bone Deformity / Limp - Differential Diagnosis Algorithm 
Infection
 • Septic Arthritis
 • Cortical Hypertrophy
 •
Legg-Calve-Perthes Disease Knee ... Tendon Rupture, Dislocation ... Deformity #Limp #MSK ... #Algorithm #Orthopedics ... #Causes
Humeral Avulsion of the Inferior Glenohumeral Ligament (HAGL)
 • Imaging Findings:
 • Large defect of the
HAGL) can be a cause ... anterior shoulder dislocation ... Differential diagnosis ... shoulder #clinical #mri ... #msk