13 results
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
posterolateral. ... anterior interosseous nerve ... procedural sedation and reduction ... #Radiology #XRay ... #Sports #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
Elbow Flexion ... Elbow Extension ... Wrist Extension ... #MuscleGroups #MSK ... #Orthopedics #Neurology
Median Nerve Tension Test (Upper-Limb Neurodynamic Tests, ULNT1)

To assess for Median Nerve Peripheral Neuropathy

Shoulder abduction →
Median Nerve Tension ... external rotation → elbow ... positive with symptom ... physicalexam #sports #msk ... #orthopedics #neurology
Anterior Shoulder Dislocation - ED Management
The shoulder is the most commonly dislocated major joint, 95% of
injuries: Axillary nerve ... injury, difficult reduction ... Anterior #Radiology #XRay ... Diagnosis #Management #Orthopedics ... #Sports #MSK
Anterior Shoulder Dislocation: Pathogenesis, clinical, and radiographic findings

Trauma, Fall on, outstretched arm, Overhead throwing => Abduction
Force exceeds tensile ... on axillary x-ray ... Structural damage to nerves ... Diagnosis #signs #symptoms ... #msk #orthopedics
Median Nerve Tension Test (Upper-Limb Neurodynamic Tests, ULNT2)

To assess for Median Nerve Peripheral Neuropathy

Elbow extension →
Median Nerve Tension ... Neuropathy Elbow ... → shoulder abduction ... physicalexam #sports #msk ... #orthopedics #neurology
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
pain with wrist extension ... fracture, median nerve ... sedation and emergent reduction ... Carpal #Radiology #XRay ... #Sports #MSK
Monteggia Fracture 
Fracture of proximal ulnar shaft with radial head dislocation. Remember “MUGR” to recall where
Exam: swollen elbow ... posterior interosseous nerve ... • If stable reduction ... Ulnar #Radiology #XRay ... #Proximal #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
- C6, C7, C8 Elbow ... to the radial nerve ... in the median nerve ... Anterior Shoulder Dislocation ... Myotomes #diagnosis #neurology
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
of the extensor tendon ... Digital block and reduction ... Discharge with orthopedic ... IPJoint #Radiology #XRay ... #MSK