11 results
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
all carpal bones should ... "Terry Thomas" sign ... • Due to injury ... ("Terry Thomas sign ... Orthopedics #Sports #MSK
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
"pooping duck sign ... " on lateral x-ray ... injuries: Perilunate dislocation ... Radiology #XRay #Diagnosis ... Orthopedics #Sports #MSK
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
On lateral wrist ... tea cup") which should ... , median nerve injury ... Radiology #XRay #Diagnosis ... Orthopedics #Sports #MSK
Femoral Head Fracture: Pathogenesis and clinical findings
 • Posterior hip dislocation -> Impaction force from femoral
Posterior hip dislocation ... Avulsion or shearing injury ... from impact onto lateral ... hip Signs/Symptoms ... #msk #diagnosis
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
(medial/lateral ... can't make A-OK sign ... ), ligamentous injury ... Radiology #XRay #Diagnosis ... Orthopedics #Sports #MSK
RADIAL HEAD FRACTURE 
Radial head fractures are the most common elbow fracture in adults and are
anterior sail sign ... Tenderness to lateral ... , elbow dislocation ... Radiology #XRay #Diagnosis ... #Orthopedics #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Upper Extremity Dermatomes ... spared in this injury ... Dislocation - May ... #Myotomes #diagnosis ... #neurology #sensory
Humeral Avulsion of the Inferior Glenohumeral Ligament (HAGL)
 • Imaging Findings:
 • Large defect of the
dislocation WITHOUT ... capsuloligamentous injury ... BHAGL): Avulsion fracture ... GAGL): "Reverse J sign ... #msk
Adhesive Capsulitis (Frozen Shoulder) - Pathogenesis and Clinical Findings

 • Primary (Idiopathic): Unknown etiology, but associated
injury (i.e. post ... , humeral head fracture ... pathophysiology #diagnosis ... #symptoms #signs ... stages #staging #msk
Trendelenburg Gait: Pathogenesis and clinical findings

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