28 results
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
Scapholunate Dissociation ... dissociation. ... perilunate or lunate dislocation ... associated fracture or dislocation ... #Scapholunate #Dissociation
Femoral Head Fracture: Pathogenesis and clinical findings
 • Posterior hip dislocation -> Impaction force from femoral
Posterior hip dislocation ... • Anterior hip dislocation ... injury -> Ligaments tear ... Fractures #msk #diagnosis ... #pathophysiology
Argyll Robertson Pupil
Definition:
 - Irregular and small (1-2mm) pupil
 - Light-near dissociation (accommodation remains intact)
 -
pupil - Light-near ... dissociation (accommodation ... and classical association ... Pupil #neurology #diagnosis ... ophthalmology #physicalexam
Anterior Shoulder Dislocation: Pathogenesis, clinical, and radiographic findings

Trauma, Fall on, outstretched arm, Overhead throwing => Abduction
Anterior Shoulder Dislocation ... Anterior Shoulder Dislocation ... x-ray view -> Dislocation ... Anterior #Shoulder #Dislocation ... #Diagnosis #signs
Parinaud's Syndrome
What?
 - Impaired upgaze
 - Light-near dissociation
 - Convergence retraction nystagmus
 - Eyelid retraction (Collier's
upgaze - Light-near ... dissociation - ... retraction (Collier's sign ... → "setting sun sign ... Parinauds #Syndrome #diagnosis
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
Perilunate Dislocation ... In perilunate dislocation ... summary: • Dorsal dislocation ... #Perilunate #Dislocation ... #Orthopedics #Sports
Posterior Elbow Dislocation
The elbow is the second most commonly dislocated major joint in adults and the
Posterior Elbow Dislocation ... common major joint dislocation ... can't make A-OK sign ... triad = posterior dislocation ... MetroHealth_EM #Elbow #Dislocation
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
6mm); • Light-near ... dissociaton; • ... females Differential Diagnosis ... dissociation • ... #Adies #Pupil #PhysicalExam
Parinaud's syndrome
What?
 • Light-near dissociation (tectal pupils)
 • Convergence retraction nystagmus
 • Eyelid retraction (Collier's sign)
• Light-near dissociation ... retraction (Collier's sign ... "setting sun" sign ... syndrome #neurology #diagnosis
Patellar Apprehension Test for Patellar Instability on Knee Examination

The Patellar Apprehension Test evaluates for patellar subluxation
Patellar Apprehension Test ... subluxation or dislocation ... #Instability #PhysicalExam ... clinical #video #msk #sports ... #subluxation #dislocation