cómo se dice plexus de brachial
The suprascapular n come off of this cord
What is no cord?
Your patient has told you that they recently started getting curious and wanted to get more into the curious world. They want to know what the scapular arterial anastomoses are (they could have just looked it up on google)
What is the suprascapular a, dorsal scapular a, scapular circumflex a, thoracodorsal a, and posterior intercostal aa? (Super Dinos Scare Tiny People Indefinitely)
After piercing this muscle in the forearm, a nerve becomes purely motor and causes finger extension deficits when injured.
What is the supinator m and PIN?
Your curious patient wants to know the 6 dorsal tunnels in order from lateral to medial.
What is APL and EPB in 1, ECRL and ECRB in 2, EPL in 3, ED and EI in 4, EDM in 5, ECU in 6?
Match injury → tendon avulsed → MOI → deficit → possible progression
Mallet finger
Boutonnière deformity
Jersey finger
Swan neck deformity
What is
1. ED tendon, DIP forced into flexion with finger extended, DIP extension, swan neck
2. Central slip of the extensor tendon is avulsed from the middle phalanx; PIP flexion + DIP extension
3. FDP tendon avulsed from DIP, cannot flex DIP
4. PIP hyperextension + DIP flexion, often in RA
Injury to this nerve at the elbow or forearm will result in
What is anteriorly, due to the presence of only one anterior rotator cuff tendon?
Charlie Kirk lowkirkenuinely has loss of wrist extension and sensory loss on the dorsum of the hand EXCEPT fingertips.
a. Injured nerve
b. Injury location
c. Associated artery
What is the radial n, spiral/radial groove, deep brachial a?
Compare Colles’ vs Smith’s fractures by:
MOI
Direction of distal fragment angulation
What is FOOSH and dorsal angulation (Colles') and Fall on flexed wrist and palmar angulation (Smith's)?
In carpal tunnel syndrome, what happens to FPL and why?
A patient presents to your clinic for "pain on the back near both shoulders." When reviewing his medications, you notice that the pt is on some pretty intense anabolic steroids. Additionally, you notice some major hypertrophy of his teres major and teres minor muscles. The nerve and artery MOST LIKELY impinged are
What is the scapular circumflex a and lower subscapular n?
The muscle that distally attaches to the lateral radius is innervated by which cord of the brachial plexus?
What are the lateral and medial cords? (muscle is pronator teres and nerve is median n)
Youngboy presents to your rural clinic in Atlanta with increasing pain, tightness, and neurovascular compromise following a crush injury to the arm.
a. Diagnosis
b. Pathophysiology
c. Why this is an emergency
What is compartment syndrome, leads to compression of structures so decreased perfusion, leads to ischemia and necrosis?
A patient cannot make a proper “OK” sign and has no sensory loss.
a. Diagnosis
b. Nerve involved
c. Muscles lost
What is Anterior Interosseous Syndrome, AIN, and lateral 1/2 FPD, FPL, PQ mm?
A patient can still flex the wrist, but it deviates ulnarly during flexion.
Where is the lesion and why does deviation happen?
What is the median n at the cubital fossa, FCU still intact so can still flex wrist but also ulnar deviates?
Your patient presents to your clinic on a left crutch for his broken femur and right arm sling after fracturing his right surgical neck of humerus. He is frustrated because his "grip strength isn't good" in his left hand, and he really wants to "go back to being able to climb tall buildings again," (he thinks he is a lizard). He also said that when he got a shot in his right middle deltoid m yesterday, he "couldn't feel the needle." You step outside of the room for a moment to take a puff of your vape (you're stressed) and walk back in to explain the nerve(s) most likely affected
What is the L radial n (crutches compresses the n) and R axillary n (has a motor and cutaneous branch)?
When viewing an X-ray of your patient's left shoulder, you notice that the space between the greater and lesser tubercles is much shallower than what is normal. You are concerned about the possible subluxation of these tendons due to this rare phenomenon
What are the L long head of the biceps brachii, L latissimus dorsi, L pectoralis major, and L teres major tendons?
Your pt is a child and was pulled abruptly by the hand and refuses to use the arm. X-ray appears normal.
a. Diagnosis
b. What structure lost contact?
c. Why imaging is often negative?
What is nursemaid's elbow, head of radius with annular ligament, radius self-reduces back into annular ligament?
A golfer presents with medial elbow pain radiating into the wrist and little finger.
a. Diagnosis
b. Inflamed structure
c. Why symptoms radiate distally
What is medial epicondylitis/golfer's elbow, common flexor tendon, compresses ulnar n?
Your bartender says he has a hyperextension injury → “spilled teacup” sign.
a) Diagnosis
b) Nerve most commonly injured and why
What is lunate dislocation, median n because lunate displaces anteriorly towards palm?
Your pediatric pt presents to your clinic with a L droopy eyelid and pinpoint pupil. He explains that he permanently looks like he "is throwing up a gang sign" (he is Boss Baby so he can talk). You can immediately reason that the secondary condition is this and attributed to what?
What is Horner Syndrome attributed to Klumpke's Palsy (inferior trunk stretch in vaginal birth delivery)?
This structure forms the roof of the subacromial space, and any inflammation here cause pain with abduction >90° because
What is the coracoacromial ligament and greater than 90 degrees compresses the structures below?
Your pt is a collegiate pitcher who presents with medial elbow pain radiating into the 4th and 5th digits. Valgus stress testing reveals joint gapping compared to the contralateral side.
a. Most likely injured structure
b. Primary force causing this injury
c. Why sensory symptoms are present
d. Operative management option
What is the UCL, excessive valgus forces (overuse), ulnar n. can be pinched in the cubital tunnel (also has cutaneous function in the medial hand and digits), tommy johns surgery with palmaris longus tendon graft?
A patient presents after a supracondylar fracture of the distal humerus. The forearm is pale and pulseless, with paresthesia in digits 1–3.
a. Which artery is most at risk?
b. Which nerve is most at risk?
c. Why is this fracture particularly dangerous?
What is brachial a, median n, risk of compartment syndrome and ischemia (and necrosis)?
FOOSH + snuffbox tenderness. Initial x-ray negative.
a) What fracture are you most worried about?
b) Why re-xray 1–2 weeks later?
c) What major complication are you preventing?
d) In FOOSH, what bones “smash” the scaphoid?
What is a scaphoid fx, fx may not show up initially on xray, AVN of scaphoid, capitate and radius.