48 results
Hand Nerve Injuries - Common Presentations
 • Wrist Drop - Radial Nerve Injury
 • Claw Hand
Presentations • Wrist ... • Claw Hand - Ulnar ... Differential #Diagnosis #MSK ... #Orthopedics
Interphalangeal Joint Dislocation
Interphalangeal joint dislocations almost always occur dorsally, look for associated avulsion fractures! Here's a
prevent radial and ulnar ... tendons attaches ... Discharge with orthopedic ... Management #Hand #Orthopedics ... #MSK
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
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
Example of 4th wrist extensor compartment tenosynovitis, note marked synovial hypertrophy and effusion in the tendon
Example of 4th wrist ... extensor compartment ... effusion in the tendon ... Ultrasound Site - MSK ... #pocus
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
Radial Nerve Wrist ... Extension C6 Radial ... Fingers Abduction T1 Ulnar ... #MuscleGroups #MSK ... #Orthopedics #Neurology
Mallet Finger
Absence of a fracture does NOT exclude Mallet finger, the extension function of the DIP
tendon distal to ... Exam: Swollen and tender ... Discharge with orthpedic ... Management #Hand #Orthopedics ... #MSK
Eichhoff's Test in de Quervain's Tenosynovitis

1) Patient makes a fist with fingers wrapped around the thumb
2)
stabilizes forearm and ulnar ... pollicis longus and extensor ... pollicis brevis tendons ... physicalexam #sports #msk ... #orthopedics #rheumatology
Triquetral Fracture
The triquetrum is the second most commonly fractured carpal bone. Look for the "pooping duck
distal to distal ulna ... , pain with wrist ... flexion and extension ... distal radius or ulna ... #Sports #MSK
Amsterdam Wrist Rules
Rules that dictate which patients require imaging based on the likelihood of wrist fracture
Amsterdam Wrist ... Visible deformity, Tender ... Visible deformity, Tender ... fracture #radiology #msk ... #orthopedics #diagnosis