Shoulder pathologies and upper limb nerve entrapment Flashcards
What is the most likely presentations at 20-30s
instability
What is the most likely presentations at 30-40s
impingement
What is the most likely presentations at 40-50s
Frozen shoulder
What is the most likely presentations at 50-60s
Cuff tear
What is the most likely presentation over 60
arthritis
What are the intrinsic muscles of the rotator cuff
Supraspinatus
infraspinatus
teres minor
subscapularis
What is the shoulder ROM
forward flexion
adbuction
external rotation
internal rotation
What is the usual picture of shoulder instability?
Teenage to 30s, young, sporty, mostly traumatic
Anterior dislocation
common 95%
traumatic
sports
Posterior dislocation
infrequent 5%
epileptic fit
electrocution
(lightbulb sign on X-ray)
Instability acute presentation
A and E department reduction
painful
in sling
Instability chronic presentation
atraumatic laxity/subluxations
not painful
no support
In instability presentation what is it important to ask about
traumatic event mechanism of injury ease of dislocation frequency general laxity
On EXAM OF INSTABILITY WHAT DO YOU Look,feel,move,test for
LOOK-abnoraml shoulder contour, muscle wasting
feel-tenderness,muscle spasm
move-good ROM,scapula winging
Test-RC strength
In anterior shoulder dislocation
Reduced by manipulation
analgesia and sedation IV and O2
What are the extrinsic muscles of the shoulder
Deltoid
trapez
latissimus dorsi
Post-reduction treatment
2-3 weeks sling
analgesia
gradual mobilisation
physiotherapy
Instability investigations
MRI arthrogram
Instability physiotherapy- what does it hope to improve
RC and core strengthening scapula stabilising
What is impingement syndrome
Pain originating from the sub-acromial space
common and most transient
intrinsic and extrinsic causes
Intrinsic causes of impingement syndrome
tendon vascularity
watershed area
tendon degeneration
Cuff dysfunction
Extrinsic causes of impingement syndrome
External “pressure”
- type of acromium
- coraco-acromial ligament
- clavicular spur/osteophyte
Impingement syndrome can look different at different ages
RC tendinitis/subacromial bursitis-20s
Calcific tendonitis-30-40s
Cuff tear-50-60s
Cuff arthropathy-70s
What is the classification for Impingement syndrome
Neer’s classification (1-3)
Impingement rehab
Painful
Sling 1-2 weeks
Early PT and ROM exercises
RC strengthening
Cuff tear presentation
age 50-60
grey hair-cuff tear
acute traumatic or chronic attrition
What on examination are you looking for in a cuff tear?
Look-contour,wasting
Feel-tenderness sub deltoid region
Move- ROM active
Cuff tear investigations
-
Frozen shoulder
40-50s more common in female (2;1) not uncommonly bilateral gradual severe pain association with diabetes, lipid and endocrine disease and dupuytren's
Pathology of frozen shoulder
contracture and thickening of Glenn-humeral ligament
Frozen shoulder operative options
1-manipulation under anaesthesia
2-arthroscopic capsular release
Glenhumoral arthritis presentation
over 60
uncommon location
OA,RA, post-traumatic arthritis
What is the mnemonic to remember the median nerve innervation
LOAF