23 results
Midcarpal Instability (MCI) of the Wrist

Intrinsic Midcarpal Instability
Usually affects young, hypermobile patients.
It is due to progressive
Midcarpal Instability ... Intrinsic Midcarpal Instability ... The proximal carpal ... ECRB) The distal carpal ... #Wrist #msk #orthopedics
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
capitate ("apple") should ... tea cup") which should ... associated injuries: Carpal ... Disposition: Pending orthopedic ... #Carpal #Radiology
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
bones should be ... bones should be ... box, pain with wrist ... follow-up with orthopedics ... #TerryThomas #Wrist
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
Complications are ... ulna, pain with wrist ... Discharge with orthopedic ... Triquetrum #Fracture #Wrist ... Diagnosis #Management #Orthopedics
Scaphoid Fractures
The scaphoid is the most commonly fractured carpal bone. Remember, if a fracture is suspected
fractures that are ... instability and ... follow-up with Orthopedics ... follow-up with PCP or orthopedics ... Scaphoid #Fracture #Wrist
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Motor Function Shoulder ... Carpal Tunnel Syndrome ... Anterior Shoulder ... Myotomes #diagnosis #neurology ... sensory #motor #arm
Mytomes - Segmental Innervation of Muscles
Shoulder	Abduction	C5	Axillary Nerve
Shoulder	Adduction	C6-C8	Thoracodorsal Nerve
Elbow	Flexion	C5	Musculocutaneous Nerve
Elbow	Extension	C7	Radial Nerve
Wrist	Extension	C6	Radial Nerve
Fingers	Flexion	C8	Median Nerve
Fingers	Abduction	T1	Ulnar Nerve
Hip	Flexion	L2	Nerve to Psoas
Hip	Extension	S1	Inferior Gluteal
Innervation of Muscles Shoulder ... Axillary Nerve Shoulder ... Radial Nerve Wrist ... MuscleGroups #MSK #Orthopedics ... #Neurology #Diagnosis
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
nerve of elbow, wrist ... the back of the arm ... motor branches are ... Anatomy #diagnosis #neurology ... #orthopedics
Sulcus Sign - Inferior Glenohumeral Instability

To test inferior glenohumeral stability place traction on the humerus with
Inferior Glenohumeral Instability ... humerus with the arm ... with inferior instability ... #Shoulder #PhysicalExam ... #sports #msk #orthopedics
Hamate Fracture on Wrist X-Ray

- point tenderness over the hamate should raise suspicion for a fracture,
Hamate Fracture on Wrist ... over the hamate should ... if plain films are ... negative a CT should ... prompt outpatient orthopedics