13 results
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
Wrist Extension C6 ... Knee Flexion L5 ... Tibial Nerve Knee ... #MuscleGroups #MSK ... Orthopedics #Neurology #Diagnosis
Trendelenburg Gait: Pathogenesis and clinical findings

Skeletal Pathology of the Hip
 • Arthritis
 • Congenital hip dysplasia
Superior gluteal nerve ... dislocation Iatrogenic ... Valgus position of knee ... pathophysiology #causes ... #msk
Reduction of Patellar Dislocation 
Most patellar dislocations are lateral, and they often reduce on their own.
or recline with hips ... consider a femoral nerve ... #Procedure #MSK ... #Knee #Clinical ... #Video #PhysicalExam
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
characteristic "waiter's tip ... to the radial nerve ... in the median nerve ... Anterior Shoulder Dislocation ... Dermatomes #Myotomes #diagnosis
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
Piriformis Test

The Piriformis test evaluates for pain from sciatic nerve irritation caused by the piriformis muscle.
With
pain from sciatic nerve ... irritation caused ... patient prone, the knees ... degrees and the hips ... #sports #msk #orthopedics
Bone Deformity / Limp - Differential Diagnosis Algorithm 
Infection
 • Septic Arthritis
 • Cortical Hypertrophy
 •
- Differential Diagnosis ... Arthritis Other Causes ... Legg-Calve-Perthes Disease Knee ... Tendon Rupture, Dislocation ... Deformity #Limp #MSK
Extreme Patellofemoral Joint Instability (PFJI)

In this video you can see an extreme rare case of bilateral
PFJI) In this video ... an extreme rare case ... 4️⃣core, and hip ... #Orthopedics #Knee ... #msk
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
Diagnosis Framework ... cells per μL • Diagnosis ... Demyelinating disease caused ... , palsy of the abducens ... nerve, and impaired
Posterior Knee Dislocation Injury
Specifically, POSTERIOR KNEE DISLOCATIONS can have significant associated injury that needs unique approach
Posterior Knee Dislocation ... : ~25% cases. ... Check hip and ankle ... #Injury #msk #clinical ... #video #nsfw