22 results
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
with the distal radius ... with the distal radius ... , triquetrum), radial ... fracture, median nerve ... Orthopedics #Sports #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Erb's Palsy is caused ... nerve in the radial ... in the median nerve ... Anterior Shoulder Dislocation ... nerve damage resulting
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
Posterior Elbow Dislocation ... lateral epicondyle > radial ... anterior interosseous nerve ... + radial head fracture ... Orthopedics #Sports #MSK
Trendelenburg Gait: Pathogenesis and clinical findings

Skeletal Pathology of the Hip
 • Arthritis
 • Congenital hip dysplasia
Superior gluteal nerve ... Fracture • Hip dislocation ... Trendelenburg #Gait #pathophysiology ... #causes #symptoms ... signs #diagnosis #msk
Anterior Shoulder Dislocation: Pathogenesis, clinical, and radiographic findings

Trauma, Fall on, outstretched arm, Overhead throwing => Abduction
Anterior Shoulder Dislocation ... x-ray view -> Dislocation ... Structural damage to nerves ... signs #symptoms #msk ... #orthopedics #pathophysiology
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
Left Wrist Drop - Radial ... Nerve Palsy on ... nerve in its path ... sleeping as in this case ... #orthopedics #msk
Diplopia - Double Vision - Differential Diagnosis Algorithm
Clinical Pearls:
 • Diplopia is almost always binocular.
 •
Differential Diagnosis Algorithm ... a mass as the cause ... Cataract/Lens Dislocation ... Differential #Diagnosis #Algorithm ... #Causes #Ophthalmology
Unilateral Acute Vision Loss - Differential Diagnosis Algorithm
Painful - Cornea
 • Keratopathy
Painful - No Abnormalities of
Differential Diagnosis Algorithm ... Abnormalities of the Optic Nerve ... Abnormalities of the Optic Nerve ... Demyelination • MS ... #Causes #Ophthalmology
Monteggia Fracture 
Fracture of proximal ulnar shaft with radial head dislocation. Remember “MUGR” to recall where
ulnar shaft with radial ... head dislocation ... head dislocation ... posterior interosseous nerve ... Orthopedics #Proximal #MSK
Isocoria - Pupillary Defects - Differential Diagnosis Algorithm
Relative Afferent Pupil Defect
 • Optic Neuritis
 • Ischemic
Differential Diagnosis Algorithm ... Neuropathies • Optic Nerve ... Syphilis (light-near dissociation ... Differential #Diagnosis #Algorithm ... #Causes #Ophthalmology