5947 results
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
Musculocutaneous Nerve Elbow Extension ... Radial Nerve Wrist Extension ... to Psoas Hip Extension ... Tibial Nerve Knee Extension ... Orthopedics #Neurology #Diagnosis
Lumbar spine reporting - Nomenclature
Bulge (>25% disc circumference)
  - Symmetric (Circumferential) 
  - Asymmetric
base > dome - Extrusion ... Protrusion #Radiology #Diagnosis
Diagnostic Testing for Meningitis
History:
 • Triad: Fever, neck stiffness, and altered mental status
 • Sens: 44%
Diagnostic Testing ... Kernig Sign: • Leg extension ... back/thighs or extension ... #Meningitis #diagnosis ... #Specificity #diagnosis
Spinal Cord Injury by Nerve Root Levels
Spinal Root	Sensory	Motor	Reflex
C4	Acromioclavicular Joint	Respiration	None
C5	Radial Antecubital Fossa	Elbow Flexion	Biceps Reflex
C6	Dorsal Thumb	Wrist Extension	Brachioradialis Reflex
C7	Dorsal
Dorsal Thumb Wrist Extension ... Middle Finger Elbow Extension ... Femoral Condyle Knee Extension ... 2nd MTP) Big Toe Extension ... #differential #diagnosis
Chronic Shoulder Pain - Differential Diagnosis Algorithm
4 tests for the AC joint:
1. Direct palpation
2. Cross-arm shoulder
- Differential Diagnosis ... Resisted shoulder extension ... #Differential #Diagnosis
Flexor Tenosynovitis (FTS)

The clinical diagnosis of FTS is made using Kanavel’s Signs:
 - Fusiform swelling.
 -
The clinical diagnosis ... Pain with passive extension ... Sign #Hand #MSK #Diagnosis
Epicondylitis - Lateral: Focal epicondyle tenderness, decreased grip strength, pain with resisted wrist extension. Medial: Focal
resisted wrist extension ... #Diagnosis #EM #
Thyroid Goiter on Physical Exam - Likelihood Ratios by Finding
 • No goiter by palpation or
only after neck extension ... #PhysicalExam #diagnosis
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
musculocutaneous) • Extension ... C7 (median) • Extension ... C8 (median) • Extension ... Dermatomes #Myotomes #diagnosis
Jones Fracture
 - More distal than your base 5MT fractures (and will also look a bit
Intermetatarsal extension ... Orthopedics #Clinical #Diagnosis