12 results
Humeral Avulsion of the Inferior Glenohumeral Ligament (HAGL)
 • Imaging Findings:
 • Large defect of the
Differential diagnosis ... capsuloligamentous injury ... #Ligament #shoulder ... clinical #Radiology #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
Axillary Nerve Shoulder ... Radial Nerve Wrist ... Gluteal Nerve Knee ... #MuscleGroups #MSK ... Orthopedics #Neurology #Diagnosis
Perilunate Dislocation
On lateral wrist XR, the capitate ("apple") should sit in the lunate ("tea cup") which
capitate ("apple") should ... tea cup") which should ... , median nerve injury ... Radiology #XRay #Diagnosis ... Orthopedics #Sports #MSK
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
- Differential Diagnosis ... bearing after injury ... injuries - Meniscal injury ... #differential #diagnosis ... #msk #physicalexam
Adhesive Capsulitis (Frozen Shoulder) - Pathogenesis and Clinical Findings

 • Primary (Idiopathic): Unknown etiology, but associated
injury (i.e. post ... shoulder surgery ... women > men), the glenohumeral ... pathophysiology #diagnosis ... stages #staging #msk
Scapholunate Dissociation
The spacing between all carpal bones should be 1-2 mm, look for the "Terry Thomas"
all carpal bones should ... Thomas" sign to diagnosis ... • Due to injury ... box, pain with wrist ... Orthopedics #Sports #MSK
Positive Lachman's Test

The Lachman test is a clinical test used to diagnose injury of the anterior
clinical test used to diagnose ... injury of the anterior ... The knee is flexed ... The examiner should ... Lachman #Test #ACL #PhysicalExam
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
Motor Function Shoulder ... spared in this injury ... Anterior Shoulder ... Dermatomes #Myotomes #diagnosis ... sensory #motor #arm #physicalexam
Demonstration of the Lachman Test for assess for ACL Injury - Normal Exam

Demonstration by Dan Smith,
assess for ACL Injury ... clinical test used to diagnose ... The knee is flexed ... The examiner should ... Lachman #Test #ACL #PhysicalExam
Belly Press Test for Subscapularis Injury

An alternative to the lift-off test, or when the lift-off test
Subscapularis Injury ... movement of the wrist ... #shoulder #clinical ... #video #physicalexam ... #msk #orthopedics