12 results
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
Scapholunate Dissociation ... dissociation. ... • Due to injury ... #Scapholunate #Dissociation ... #MSK
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
Perilunate Dislocation ... On lateral wrist ... In perilunate dislocation ... summary: • Dorsal dislocation ... #Perilunate #Dislocation
Anterior Shoulder Dislocation - ED Management
The shoulder is the most commonly dislocated major joint, 95% of
Dislocation - ED ... common major joint dislocation ... #Dislocation #Anterior ... #Orthopedics #Sports ... #MSK
Anterior Shoulder Dislocation: Pathogenesis, clinical, and radiographic findings

Trauma, Fall on, outstretched arm, Overhead throwing => Abduction
Dislocation: Pathogenesis ... Dislocation ... x-ray view -> Dislocation ... #Dislocation #Diagnosis ... #signs #symptoms
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
Posterior Elbow Dislocation ... common major joint dislocation ... triad = posterior dislocation ... MetroHealth_EM #Elbow #Dislocation ... #MSK
Femoral Head Fracture: Pathogenesis and clinical findings
 • Posterior hip dislocation -> Impaction force from femoral
Posterior hip dislocation ... • Anterior hip dislocation ... Avulsion or shearing injury ... from impact onto lateral ... FemoralHead #Fractures #msk
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
" on lateral x-ray ... injuries: Perilunate dislocation ... Radiology #XRay #Diagnosis ... #Orthopedics #Sports ... #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Motor Function Shoulder ... spared in this injury ... Dislocation - May ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory
Humeral Avulsion of the Inferior Glenohumeral Ligament (HAGL)
 • Imaging Findings:
 • Large defect of the
dislocation WITHOUT ... Differential diagnosis ... capsuloligamentous injury ... GAGL): "Reverse J sign ... #msk
Trendelenburg Gait: Pathogenesis and clinical findings

Skeletal Pathology of the Hip
 • Arthritis
 • Congenital hip dysplasia
Chondrodysplasia Neurologic ... Fracture • Hip dislocation ... of knee due to laterally ... causes #symptoms #signs ... #diagnosis #msk