45 results
Knee Examination
Right Knee - Examination maneuvers include the Lachman (ACL), anterior drawer (ACL), Lateral pivot shift,
Knee Examination ... Right Knee - Examination ... #Diagnosis #Sports ... #Knee #PhysicalExam
Left Wrist Drop - Radial Nerve Palsy on Physical Examination

Left hand drop due to compression of
Left Wrist Drop - Radial ... compression of the radial ... #Nerve #Palsy #PhysicalExam ... orthopedics #msk #sports ... #neurology
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 C7 Radial ... Gluteal Nerve Knee ... Tibial Nerve Knee ... #Orthopedics #Neurology ... #Diagnosis
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
- Differential Diagnosis ... Osteoarthritis - Overuse syndrome ... Seronegative Reactive Syndrome ... #differential #diagnosis ... #msk #physicalexam
Cushing Syndrome - Likelihood Ratios of Physical Exam Findings
Moon facies LR +1.6
Central obesity LR +3.0
Generalized obesity
Cushing Syndrome ... - Likelihood Ratios ... SatyaPatelMD #Cushings #Syndrome ... #LRs #PhysicalExam ... #diagnosis #endocrinology
Upper Extremity Dermatomes and Myotomes
Motor Function
Shoulder:
 • Abduction - C5,C6 (axillary)
 • Adduction - C6, C7,
hand" ± Horner Syndrome ... Carpal Tunnel Syndrome ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory ... #motor #arm #physicalexam
Adie's Pupil
What? Unknown nature & benign
 • Regular and mildly dilated pupil (4-6mm);
 • Light-near dissociaton;
Holmes-Adie Syndrome ... females Differential Diagnosis ... @neudrawlogy #Adies ... #Pupil #PhysicalExam ... #neurology #ophthalmology
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
Respiration None C5 Radial ... Femoral Condyle Knee ... Ankle Dorsiflexion Knee ... #differential #diagnosis ... #Neurology #Spine
Lower Extremity Dermatomes and Myotomes
Reflexes: 
 • Knee - L2, L3, L4
 • Ankle - S1
Reflexes: • Knee ... • Cauda Equina Syndrome ... Dermatomes #Myotomes #diagnosis ... #neurology #sensory ... #motor #leg #physicalexam
Causes of Hypokalemia - Differential Diagnosis Algorithm
Defining the cause of hypokalemia starts by measuring urinary K
- Differential Diagnosis ... of hypokalemia starts ... , Gitelman's syndrome ... #differential #diagnosis ... algorithm #causes #nephrology