11 results
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
injuries: Carpal fracture ... styloid fracture ... Disposition: Pending orthopedic ... Diagnosis #Management #Orthopedics ... #Sports #MSK
Scaphoid Fractures
The scaphoid is the most commonly fractured carpal bone. Remember, if a fracture is suspected
lead to carpal instability ... : Scapholunate dissociation ... , perilunate dislocation ... #Wrist #Carpal ... #Sports #MSK
Midcarpal Instability (MCI) of the Wrist

Intrinsic Midcarpal Instability
Usually affects young, hypermobile patients.
It is due to progressive
Midcarpal Instability ... (MCI) of the Wrist ... Intrinsic Midcarpal Instability ... with an audible “clunk ... #Wrist #msk #orthopedics
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
box, pain with wrist ... injuries: distal radius ... follow-up with orthopedics ... #TerryThomas #Wrist ... #Sports #MSK
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
ulna, pain with wrist ... injuries: Perilunate dislocation ... , distal radius ... #Wrist #Carpal ... #Sports #MSK
Watson's Test for Scapholunate Instability

1) The examiner places a thumb over the scaphoid tubercle, applying dorsal
from ulnar to radial ... Interpretation: A painful clunk ... #wrist #clinical ... #physicalexam #orthopedics ... sports #scaphoid #msk
Jerk Test for Glenohumeral Joint Posteroinferior Instability

The arm is held at 90 degrees abduction and internal
Posteroinferior Instability ... and applies an axial ... /clunk as it returns ... physicalexam #shoulder #msk ... #orthopedics #sports
Prior anterior glenohumeral joint dislocation with Hill-Sachs fracture and Perthes lesion
Imaging Findings:
 • The arrow is
glenohumeral joint dislocation ... surgical repair Differential ... medially → CHRONIC INSTABILITY ... lesion #clinical #mri ... Radiology #diagnosis #msk
Humeral Avulsion of the Inferior Glenohumeral Ligament (HAGL)
 • Imaging Findings:
 • Large defect of the
anterior shoulder instability ... Differential diagnosis ... BHAGL): Avulsion fracture ... shoulder #clinical #mri ... Radiology #diagnosis #msk
Transient Patellar Dislocation - MSK Radiology
Imaging Findings:
 • Hyperintense marrow edema of the anterolateral femoral condyle
- MSK Radiology ... maltracking and instability ... Differential diagnosis ... knee #clinical #mri ... Radiology #diagnosis #msk