16 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
Axillary Nerve Shoulder ... Fingers Abduction T1 Ulnar ... #MuscleGroups #MSK ... #Orthopedics #Neurology ... #Diagnosis
Rotator Cuff Syndrome - SITS
Supraspinatus, Infraspinatus, Teres minor, and Subscapularis.
Causes: Calcific supraspinatus tendinitis 
Signs: painful abduction
Rotator Cuff Syndrome ... Causes: Calcific ... Rotator #Cuff #Syndrome ... #orthopedics #diagnosis ... #sports #MSK #anatomy
Mallet Finger
Absence of a fracture does NOT exclude Mallet finger, the extension function of the DIP
Finger deformity caused ... terminal extensor tendon ... Exam: Swollen and tender ... Radiology #XRay #Diagnosis ... #MSK
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
prevent radial and ulnar ... Discharge with orthopedic ... Radiology #XRay #Diagnosis ... Management #Hand #Orthopedics ... #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Motor Function Shoulder ... Abduction - C8-T1 (ulnar ... Adduction - C7-T1 (ulnar ... Anterior Shoulder ... Dermatomes #Myotomes #diagnosis
Tinel's Test for Tarsal Tunnel Syndrome

Perform a Tinel's over the tarsal tunnel, attempting to reproduce pain,
Tarsal Tunnel Syndrome ... numbness, or tingling caused ... #ankle #PhysicalExam ... clinical #video #sports ... #msk #orthopedics
Posterior Ankle Impingement (Os Trigonum) Syndrome - MSK Radiology
Imaging Findings:
 • Os trigonum which has marrow
(Os Trigonum) Syndrome ... - MSK Radiology ... Case description ... of the achilles tendon ... #msk
Bone Deformity / Limp - Differential Diagnosis Algorithm 
Infection
 • Septic Arthritis
 • Cortical Hypertrophy
 •
Patellofemoral Syndrome ... Patella (e.g., Tendon ... Deformity #Limp #MSK ... #Algorithm #Orthopedics ... #Causes
Calf Muscle Hematoma on POCUS

50 year old male playing tennis felt a pop in his leg.
felt a pop in his ... Diagnosis: “Tennis ... tear vs Peroneus tendon ... clinical #ultrasound #msk ... #orthopedics #sports
Orthopedic Emergencies
Compartment Syndrome
 • An increase in compartment pressure to the point where tissue perfusion is
Orthopedic Emergencies ... affected part should ... • Syndrome caused ... tibia/fibula) and hip ... • Diagnosis: