11 results
Midcarpal Instability (MCI) of the Wrist

Intrinsic Midcarpal Instability
Usually affects young, hypermobile patients.
It is due to progressive
The proximal carpal ... extensors (ECU, ... ECRB) The distal carpal ... with an audible “clunk ... #msk #orthopedics
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Shoulder: • Abduction ... Pronation - C7, C8 Wrist ... C8 (radial) • Abduction ... Carpal Tunnel Syndrome ... Dermatomes #Myotomes #diagnosis
WHAT test - Wrist Hyperflexion and Abduction of the Thumb 

The wrist is hyperflexed and the
Hyperflexion and Abduction ... interphalangeal extension ... #Thumb #Test #DeQuervains ... video #sports #msk ... #orthopedics #rheumatology
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
Muscles Shoulder Abduction ... Radial Nerve Wrist ... #MuscleGroups #MSK ... #Orthopedics #Neurology ... #Diagnosis
Eichhoff's Test in de Quervain's Tenosynovitis

1) Patient makes a fist with fingers wrapped around the thumb
2)
tendinopathy of the abductor ... pollicis longus and extensor ... Eichhoffs #Test #deQuervains ... physicalexam #sports #msk ... #orthopedics #rheumatology
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
extension • ... associated injuries: Carpal ... #Carpal #Radiology ... #XRay #Diagnosis ... #Sports #MSK
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
ulna, pain with wrist ... flexion and extension ... Discharge with orthopedic ... #XRay #Diagnosis ... #Sports #MSK
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
Thomas" sign to diagnosis ... box, pain with wrist ... extension • Possible ... #TerryThomas #Wrist ... #Sports #MSK
Distal Radius Fracture 
Distal radius fracture is the most common orthopedic injury. Here's a quick summary.
•
variable gross wrist ... injury, acute carpal ... procedural sedation and reduction ... Radiology #XRay #Diagnosis ... #MSK
Extensor Carpi Ulnaris (ECU) subluxation 
The Extensor Carpi Ulnaris (ECU), is the must ulnar of the
Extensor Carpi Ulnaris ... Carpi Ulnaris ( ... ECU Subluxation diagnosed ... physicalexam #video #Orthopedics ... #Wrist #msk