35 results
Rock Paper Scissors - Assessment of Nerve Damage in Upper Limb Injuries
Rock - Median Nerve
 •
Assessment of Nerve ... Rock - Median Nerve ... (4%), Radius & Ulnar ... Fractures • Extension ... of wrist & MCP
Hand Nerve Injuries - Common Presentations
 • Wrist Drop - Radial Nerve Injury
 • Claw Hand
Hand Nerve Injuries ... Presentations • Wrist ... • Claw Hand - Ulnar ... Nerve Injury • ... Diagnosis #MSK #Orthopedics
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
Elbow Extension ... Wrist Extension ... Fingers Abduction T1 Ulnar ... Hip Extension ... MuscleGroups #MSK #Orthopedics
Eichhoff's Test in de Quervain's Tenosynovitis

1) Patient makes a fist with fingers wrapped around the thumb
2)
stabilizes forearm and ulnar ... deviates the wrist ... pollicis longus and extensor ... pollicis brevis tendons ... #sports #msk #orthopedics
Example of 4th wrist extensor compartment tenosynovitis, note marked synovial hypertrophy and effusion in the tendon
Example of 4th wrist ... tenosynovitis, ... effusion in the tendon ... #extensor #tenosynovitis ... ultrasound #msk #pocus
Common Hand Fractures on X-Ray
Mallet finger - injury to the lateral extensor slips
Boutonniere deformity - injury
to the lateral extensor ... central band of extensor ... tendon Volar plate ... thumb injury to ulnar ... XRay #Radiology #Wrist
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
prevent radial and ulnar ... tendons attaches ... tendon), mallet ... Discharge with orthopedic ... Management #Hand #Orthopedics
Radial Nerve Anatomy and Function
The Radial nerve is the nerve of elbow, wrist and digital extension.
elbow, wrist and ... digital extension ... space and the wrist ... extension) but ... diagnosis #neurology #orthopedics
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Pronation - C7, C8 Wrist ... Abduction - C8-T1 (ulnar ... Adduction - C7-T1 (ulnar ... Horner Syndrome Wrist ... to the radial nerve
Midcarpal Instability (MCI) of the Wrist

Intrinsic Midcarpal Instability
Usually affects young, hypermobile patients.
It is due to progressive
Instability (MCI) of the Wrist ... extended, and when ulnar ... deviation of the wrist ... extensors (ECU, ... #msk #orthopedics