236 results
Spinal Cord Injury by Nerve Root Levels
Spinal Root	Sensory	Motor	Reflex
C4	Acromioclavicular Joint	Respiration	None
C5	Radial Antecubital Fossa	Elbow Flexion	Biceps Reflex
C6	Dorsal Thumb	Wrist Extension	Brachioradialis Reflex
C7	Dorsal
Dorsal Middle Finger ... Finger Flexion ... Femoral Condyle Knee ... Ankle Dorsiflexion Knee ... NerveRoots #Levels #differential
Myelopathy - Injury to the entire spinal cord - Signs and Symptoms
 • Ataxia (early sign)
are more rigid and ... late sign) • Hand ... paresthesias, fine ... finger dexterity ... signs #symptoms #msk
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
Radial Nerve Fingers ... Median Nerve Fingers ... Gluteal Nerve Knee ... Tibial Nerve Knee ... #MuscleGroups #MSK
Knee Examination
Right Knee - Examination maneuvers include the Lachman (ACL), anterior drawer (ACL), Lateral pivot shift,
Knee Examination ... Right Knee - Examination ... meniscal integrity) and ... Diagnosis #Sports #Knee ... #Drawer #Test #msk
Pivot-Shift Test in ACL-deficient Knee

This patient has pathologic varus alignment across the knee and a chronic
ACL-deficient Knee ... alignment across the knee ... and a chronic ACL ... his alignment and ... Sports #Ortho #msk
Diagram of different types of bone tumors that can occur around the knee on XRay -
occur around the knee ... @docskalski #Knee ... Diagnosis #Bony #Differential ... peds #pediatrics #msk
Lachman test in ACL-deficient Knee

This patient has pathologic varus alignment across the knee and a chronic
ACL-deficient Knee ... alignment across the knee ... and a chronic ACL ... his alignment and ... cruciate #ligament #msk
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 ... distal to the knee ... Effusions #causes #differential ... #diagnosis #msk
Positive J-Sign - Maltracking Patella on Knee Physical Exam

The J sign correlates with poor patellar tracking
Maltracking Patella on Knee ... patellar tracking and ... path with flexion and ... JSign #J #Sign #Knee ... clinical #video #msk
Varus Stress Test for LCL Injury on Knee Physical Exam

The knee is examined in extension and
LCL Injury on Knee ... Physical Exam The knee ... examined in extension and ... #Stress #Test #Knee ... video #sports #msk