13 results
Humeral Avulsion of the Inferior Glenohumeral Ligament (HAGL)
 • Imaging Findings:
 • Large defect of the
instability from ... Differential diagnosis ... #Ligament #shoulder ... clinical #Radiology #diagnosis ... #msk
Finger Collateral Ligament Stress Test

Ulnar collateral ligament stability can be tested at zero and thirty degrees
stability can be ... thirty degrees of flexion ... stability can be ... video #sports #msk ... #orthopedics #Hand
Mallet Finger
Absence of a fracture does NOT exclude Mallet finger, the extension function of the DIP
that is fixed in flexion ... due to inability ... #Radiology #XRay ... #Diagnosis #Management ... #MSK
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
capsule. collateral ligaments ... IPJoint #Radiology #XRay ... #Diagnosis #Management ... #Hand #Orthopedics ... #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
Axillary Nerve Shoulder ... Nerve Fingers ... #MuscleGroups #MSK ... #Orthopedics #Neurology ... #Diagnosis
Distal Radius Fracture 
Distal radius fracture is the most common orthopedic injury. Here's a quick summary.
•
lunotriquetral ligament ... reduction using finger ... Distal #Radiology #XRay ... #Diagnosis #Management ... #Orthopedics #MSK
Shoulder X-Ray Interpretation Checklist
1. Assess glenohumeral alignment
2. Outline the proximal humerus
3. Assess acromioclavicular joint and coracoclavicular
Shoulder X-Ray Interpretation ... Assess glenohumeral ... #XRay #interpretation ... #radiology #msk ... #diagnosis
Anterior Shoulder Dislocation: Pathogenesis, clinical, and radiographic findings

Trauma, Fall on, outstretched arm, Overhead throwing => Abduction
muscle, tendon, ligaments ... on axillary x-ray ... #Dislocation #Diagnosis ... signs #symptoms #msk ... #orthopedics #pathophysiology
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
all carpal bones should ... Thomas" sign to diagnosis ... scapholunate interosseous ligament ... Carpal #Radiology #XRay ... #MSK
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
tea cup") which should ... dorsally and no longer ... Carpal #Radiology #XRay ... #Diagnosis #Management ... #MSK