SM shoulder conditions MSK

Question 1

what’s the most common type of shoulder dislocation presentation?

Answer 1

arm being externally rotated and abducted

Question 2

most common direction of shoulder dislocation

Answer 2

anterior >least supported by the joint capsule

Question 3

mechanism of anterior shoulder dislocation

Answer 3

blow to the posterior shoulder, or a posterior force on the arm when the hand is behind the head.

Question 4

what is Erbs-Duchenne palsy ?

Answer 4

upper/superior brachial plexus injury (C5 C6)
commonly caused by shoulder dystocia during vaginal childbirth

ape hand
waiters tilt palsy
giving someone a backhander

Question 5

what is Klumpke palsy?

Answer 5

claw hand- gun fingers if ur a real ravaaaa
>ulnar claw distal elision
thenar wasting-adductor pollicis gone

klumping to the floor > lower brachial plexus injury

Question 6

Which condition is described as ‘inflammation of the capsule of the glenohumeral joint’?

Answer 6

Adhesive capsulitis,
colloquially known as a frozen shoulder
> causing severely restricted movement of the shoulder joint and pain.

Question 7

what condition commonly occurs secondarily to a dislocated shoulder?

Answer 7

Hill-Sachs lesion > is a dent in the humeral head caused by the lip of the glenoid fossa during the dislocation.

Question 8

A displaced mid-clavicular fracture presents with…

Answer 8

dropped shoulder and adducted arm. This is due to the weight of the arm, and the lack of the clavicle’s function as a strut.

Question 9

what is the cause of calcific supraspinatus tendinitis?

Answer 9

Macroscopic hydroxyapatite deposits