89 results
Hand Nerve Injuries - Common Presentations
 • Wrist Drop - Radial Nerve Injury
 • Claw Hand
Hand Nerve Injuries ... Presentations • Wrist ... Injury • Claw Hand ... - Ulnar Nerve Injury ... Differential #Diagnosis #MSK
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
Wrist Extension ... Fingers Abduction T1 Ulnar ... Knee Flexion L5 ... Tibial Nerve Knee ... #MuscleGroups #MSK
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Pronation - C7, C8 Wrist ... Abduction - C8-T1 (ulnar ... "waiter's tip" position ... Anterior Shoulder Dislocation ... sensory #motor #arm #physicalexam
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
Perilunate Dislocation ... On lateral wrist ... , pain with wrist ... fracture, median nerve ... Orthopedics #Sports #MSK
Midcarpal Instability (MCI) of the Wrist

Intrinsic Midcarpal Instability
Usually affects young, hypermobile patients.
It is due to progressive
slightly extended, and ... when ulnar deviation ... returns to its usual position ... #msk #orthopedics ... clinical #video #physicalexam
Reduction of Patellar Dislocation 
Most patellar dislocations are lateral, and they often reduce on their own.
consider a femoral nerve ... the patient a knee ... #Procedure #MSK ... #Knee #Clinical ... #Video #PhysicalExam
Monteggia Fracture 
Fracture of proximal ulnar shaft with radial head dislocation. Remember “MUGR” to recall where
Fracture of proximal ulnar ... with radial head dislocation ... the radial head dislocation ... posterior interosseous nerve ... Orthopedics #Proximal #MSK
Positive J-Sign - Maltracking Patella on Knee Physical Exam

The J sign correlates with poor patellar tracking
Positive J-Sign ... Maltracking Patella on Knee ... JSign #J #Sign #Knee ... #PhysicalExam # ... clinical #video #msk
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
Left Wrist Drop ... Examination Left hand ... trauma_modern #Wrist ... #Palsy #PhysicalExam ... #orthopedics #msk
Positive Lachman test in ACL Injury

Here is an exam of a patient under anesthesia with an
Positive Lachman ... during running and ... #Injury #Positive ... clinical #video #PhysicalExam ... cruciate #ligament #msk