ortho Flashcards
(134 cards)
1
Q
level 1 trauma center needs
A
all specialties/modalities avail 24hrs
MRI, Fluoroscopy, CT scan, etc avail for 24 hrs
2
Q
The “Golden Hour”
A
Time we have to make a difference
ii. 1 hour – if you’re going to crump, you will crump
3
Q
How does the PA student fit? Anticipate
A
Undress, log-roll (if on backboard), IV access, foley, doppler/API’s (looking for pulses, compartment syndrome), CPR, to CT
Lac repair, help ortho (reductions, etc), ophtho, ENT, etc
OR, care in-house
4
Q
primary survey
A
ABCDE hx (if awake)
GCS and a C spine and a ULS
pt is phonating =has an airway
5
Q
AMPLE survey
A
allergies meds PMH/PSH last PO events environment
6
Q
Secondary Survey
A
- Full systems exam, head to toe
2. More complete Hx
7
Q
how to management pt with . GSW
A
Stabilize the patient if unstable - undress
Determine where, how many, other injury
Neurovascular integrity is the priority in extremities
Penetrate the joint?
8
Q
checking neurovascular integrity should look like what
A
Check: pulses, pallor, temp (cold?), cap refill
2. Sensory exam
9
Q
how to evaluate weather or not a shot has penetrated the joint
A
Air in joint = penetration
10
Q
how should you report a fx with a GSW
A
“i have a GSW with an open fracture to the left tibia”
11
Q
how to treat fxs
A
- X-ray all – joint above/below
- If fx, treat as open fx
- Local wound care, debridement
- Surgery, ortho consult
- Consider Abx
- Splint, close follow-up
- Tetanus
12
Q
big concern with femur fracture
A
Risk for compartment syndrome
all of huge critical arteries that supply the leg will be pulled and the legg will probably need a steinman pin might be needed to correct
13
Q
what should we be thinking about with pelvis fx
A
Internal injury common (strap them with stabilization device)
Surg admit, ortho consult
worry about the bladder, reproductive organs, rectum
14
Q
big tell tale sign of hip fx
A
can’t bare weight
15
Q
risk for hip fx
A
Describe location
1. Classic – old woman who
fell down
Risk for AVN
Occult fx? CT(first test) or MRI*(definitive)
Ortho admits for pin or
replacement
16
Q
talking to pts about knife and stab wound
A
We deal with extremities/stable pt only
think immediately about assault and police reports
Good history; police report made?
tell me what happened and show me what position you were in
17
Q
how to approach stab wounds
A
Count, measure, explore deeper structures
i. Function, neurovascular exam
Imbedded objects are removed in the OR – don’t pull them out (may have lacerated one of the arteries but if you leave it in it stops the bleeding)
18
Q
why would you do delayed primary closure
A
High risk, contaminated or neglected wounds – don’t suture
- Hands, feet, over joints; immunocomp pt; crush, bite, puncture
- Predict high infection risk
19
Q
when to have pt return for high risk wounds
A
Copious irrigation, wound debriedment
iii. Leave open, no suture, dry dressing
iv. Follow-up in 3-5 days – suture the wound then if no infection
v. Pt Ed/document: Discussed, return signs infection, increased scar risk
20
Q
arterial bleed 1st approach
A
Universal precautions, ABC’s
Check for foreign body, elevate
21
Q
managing arterial bleed in the wilderness
A
1st small tightly folded nugget with pinpoint accuracy
2 incremental larger or less folded piece of gauze
22
Q
TXA used for
A
Tranexamic acid
clott promoter arterial bleed
23
Q
Traumatic ABI looks like
A
Comparison of ipsilateral upper and lower extremity systolic pressure
24
Q
how to take ABI
A
Pt supine, BP cuff, doppler
Doppler brachial SBP, then highest of dorsalis pedis and posterior tibial
25
ABI
ABI = Ankle SBP/Brachial SBP
26
Arterial Pressure Index (API)
Compare injured extremity to the other one (for example – compare L foot to R foot)
API = Injured SBP/Uninjured SBP
27
Approach to Ortho Injuries
Mechanism and when occurred
Associated sx’s/risk – fall, high energy, helmet, protective gear
Sx’s other than pain? Numb? Weak? LOC? Weight bear? Hear noise?
Pain right away or delayed?
Blood loss estimate; arterial?
Dominant hand? DON;T MISS
Hx same/other injury in past?
Occupation? Work related?
Assault? DV? Police report?
PMH, Meds, Allergies
Tetanus?
Social situation
28
PE for ortho needs
anatomy, neurovascular exam are key
Master exam for each area
29
medication and imaging that needs consideration for ortho injuries
Pain control. Abx? Oral? IV?
Imaging: Xray 1st. Need CT?
Repair, reduction, splint?
ED splints; no cylindrical casting
Ortho consult, rec’s, f/u
30
pt education should include
* Splint care
* Importance of f/u
* Red Flags to return
* Recovery period
* Document!
31
neurovascular test should include
Know anatomy of injury area
Check at injury area and distal
Neuro: sensory, motor, DTR’s
1. 2-point discrimination fingertips
2. <6mm normal
32
vascular check should include
: pulses, cap refill, temp, color, Allen’s test
33
no pulse or weak pulse?
GO GET THE DOPPLER
34
Neuropraxia
nerve contusion
| a. Temporary – recover
35
No sensation
nerve cut/damaged
| a. Which nerve, reproduce, compare
36
Cold extremity, pallor of the hand/foot means
) = Vascular emergency (Surg/Ortho
37
example of consulting hx
Lauri's example of talking to a specialist
Begin with Dx; then age, gender, PMH
1. If fx: open or closed?
iii. Mechanism, other injury
iv. Dominant hand. Occupation.
\Good PE prior to call: describe it
1. Know motor, neuro, vascular status
and what have you done
1. Imaging, ultrasound
2. Reduction?
3. Antibiotics, Tetanus
"i have a 35 yo male with an OPEN tip fib s/p MVA x1 hour BIBA xray show comminuted fx of the __ the pt is otherwise stable and placed in a splint, they are in bed 14"
38
scaphoid fx is at risk of AVM
at the waist
39
ortho should be consulted for
* All fractures to arrange f/u
* Joint infection/issues (may have cellulitis around the joint)
* Ligament/Tendon injury/rupture
* Hand/finger cellulitis
* Minor crush/soft tissue injury
* Major dislocations
* Ortho Admits:
* Fractures/injuries requiring surgery now
40
true emergencies
* Open fractures
* Compartment syndrome
* Septic joint (in the joint)
* Un-reducible dislocation
* Amputations
* Crush/mangled
* Pressure, air-gun injury**special (devastating, very high risk)
* Neurovascular compromise
41
mechanism of contusions
1. Crush is high risk
2. Spontaneous is high risk
3. Coumadin?
42
exam of contusions
need MOA
ii. Neurovascular exam
iii. Is this cellulitis/nec fasc?
1. Search for wound/gas
43
cellulitis
red
tender
warm
44
complications you are worried about in contusions
iv. Check for ligament/tendon rupture
v. Check joint above/below
vi. Check compartments; soft?
45
mnmgt from contusions
Xray for fx, gas, foreign body
Ice, elevation, return precautions
46
how to write about ligamentous injury
* Know ligamentous anatomy of injured area
* Know the “special moves” for each joint
* Stress joints to uncover laxity
* Sprains:
joint is stable to...
mcmurrys
lachmans
anterior drawer **
47
1st degree sprint
mod pain, minimal swelling, no laxity
48
2nd degree sprain
pain, swelling, loss function but no laxity
49
3rd degree sprint
complete ligamentous disruptions
• Significant pain/swelling/function loss
• Joint laxity present
50
collecting information on sprain should look like
i. Mechanism, when occurred, other injury, weight bear?
ii. Neurovascular exam
iii. Stable or unstable joint
iv. Look for wound, lesions
v. Infection? Septic joint?
51
sprain management
Xray – Ottawa Rules
vii. ACE/Brace/RICE if minor
viii. Joint disruption or unstable?
1. Splint like fracture
2. Ortho consult, f/u
52
Popeye sign (sling)
biceps tendon rupture
53
Can’t extend lower leg
Knee immobilizer
think
patellar rupture
54
Defect, hip flexion
| Knee immobilizer
quadriceps rupture
55
mangement achilles
Hear “pop”, local defect
Thompson’s test
Posterior splint, equinus
56
patellar rupture test
can you kick me while sitting down
"the patient has full extension of the patella"
57
mnmgt of patellar fx
Xray all, Ortho/Pods consult all
| Immobilize, outpt f/u
58
describe fx
open or closed
location
number of fragments
direction of fx line
alignment
special fxs
59
describing lcoation (5)
```
Which bone(s)?
Where in the bone?
“Head” proximal
Proximal, middle, distal shaft, neck
Intra-articular?
```
60
number of fragments think
simple (2)
comminuted (>2)
61
direction of fx line
Transverse, oblique spiral, longitudinal
62
alignment thnk
Displaced, distracted
Angulated
Shortened, impacted, depressed
Rotated
63
elbow look for
Post fat pad, sail sign
Anterior Humeral Line
Radiocapetellar Line
64
radial head
Subtle, common, FOOSH
65
Nightstick
Defensive, midshaft ulna
66
Fx ulna w/ radial head dislocation
Monteggia
67
Galeazzi
Fx distal 1/3 radius with ulna dislocation
68
special features of the wrist to consider with intra-articular
Check carpal bone arches
| spaces and alignment
69
scaphoid fx at risk at
AVN risk if at “waist”
| Check snuff box
70
Colles vs Smith’s
Colles dorsal, Smith’s volar
| FOOSH; need reduction?
71
Teacup is tipped over
lunate
72
teacup is empty
perilunate
carpals dislocated
73
Boxer’s Fx
what is it and when do you reduce
4-5th at neck (fight bite?)
Note finger rotation
Reduce >30deg angulation
74
review right now
Gamekeeper’s, Bennett’s, Rolando fx’s
75
Hyperextened finger
volar plate
76
Jammed
| suspect
extensor avulsion
mallet finger
77
patellar consideration
Direct blow
Sunrise view
Check patellar tendon
78
who get's tibila plateau fxs
```
MVA, Auto vs Ped
Jumpers
Can be subtle
Can’t weight bear
Get CT
```
79
Mortise fx
Wide? Disrupted?
| Ligamentous injury
80
Maisoneuve
Mortise plus proximal fibula fx
Palpate proximal leg in all ankle injuries
81
bimal
| vs trimal
Unstable both
check lateral for tri mal
82
mngmt of talus fx
CT
Not common
High risk AVN
CT all
83
SIGN w/ calcaneus fx
Mechanism, Mondor’s sign
| CT all
84
Lisfranc fx/dislocation
what are they and how are they manged
Mechanism
Check the 1st, 2nd, 3rd MT joints
CT all
THIS NEEDS TO BE ON THE DDX OF THE FOOT
goes to the operating room TONight
85
4 special bony conditions
open fxs
non-union or malunion
osteomyelitis
AVN
86
open fxs worry about
All get xrays first, then ortho consult
87
Non-union/malunion worry about
Deformity, pain after fx
chronic pain prone to stressors
Often non-compliance
88
who get's osteomyelitis
what are we worried about
DM, chronic infections
Ask: Is this nec fasc?
89
AVN risk
talus
navicular/scaphoid
head of the numerous
90
consideration in shoulder dislocation
Anterior or posterior?
Hill-Sachs--repetitive frequent dislocation
91
how to describe dislocations
always describe the distal portion
70% of hip dislocation posterioer
92
in all joint dislocations consider
```
Open or closed?
Neurovascular exam paramount
Xray all: fracture dislocation?
We try reduction first if no fx
Ultrasound guided nerve blocks
Intra-articular injection
Procedural sedation
Xray post reduction
Ortho consult, immobilize
```
93
considerations with effusions
mono articular vs. poly – ballottment (does the patella bounce)– hot/red? (eep think spetic)
94
big concerns for spetic joint
Atraumatic, +/- fever, red/hot, won’t move it
95
pathogens common with septic joint
S. aureus most common, N. gonorrhea 20%
GC big one for mono articular
96
Hemarthrosis is usually mono or poly?
usually in the setting of....
mono
| Post trauma
97
findings in gout
usually mono, or poly
Uric acid crystals (bi-refringent)
Pseudogout - CPPD
98
Reiter’s Syndrome
asking about penile of vaginal discharge
mono/poly
Arthritis, conjunctivitis, urethritis
99
Inflammatory – usually mono or poly?
Inflammatory – poly
100
labs for swollen joints
Get xrays, CBC (ESR, CRP)
101
Arthrocentesis
Consent pt, check contras
Cellulitis, coumadin, prosthetic jt
Strict sterile procedure
102
arthrocentesis is done for
Diagnostic and therapeutic
Suspect septic joint
Hemarthrosis post trauma
Gout diagnosis
103
how do you do a arthrocentesis
Big joint, big needle
Ultrasound guidance
Take out as much as possible: can inject bupivicaine after tap
Send fluid for cell count, culture
104
when to suspect infection after arthrocentesis
what are the complications
>50,000 WBC’s: infection***
Complications: iatrogenic infection, bleeding, local trauma
105
Five “P’s”:
Five “P’s”: pain, pallor, paralysis, pulselessness, paresthesias
106
do you need all 5 of the p's for compartment syndrome ?
Don’t need all for dx. All = late
107
first sign of compartment
Severe/pain out of porportion, w/ passive stretch: early hallmarks
108
common findings with compartment syndrome
```
Edema, bleeding = reduced blood flow
Muscle/nerve necrosis ensues
First few hours to 48hrs
Femur/tibia, humerus/elbow/hand fx/injury
Severe pain w/ cast? Remove it
```
109
Stryker pressures
???
Fasciotomy
Anticipation, high vigilance
110
who is at risk of puncture wounds
6-10% get infected: DM, immunocomp, PVD high risk
111
management of puncture
Xray all for FB, fx; low pressure irrigate, tetanus shot
irrigate softly with gravity
(don't push shit back in)
112
what is the time consideration with
<6hrs old, clean wound, healthy pt:
No abx, return precautions, do well
```
>6hrs, high risk pt/wound, plantar surface/hand:
Consider abx (Cipro, Keflex), strict return precautions
```
113
tennis shoe puncture wound?
psuedamonas !
cipro
Consider vascular/neuro/lig/tendon injury
114
Hand puncture wounds consider
Consider vasc/neuro/lig/tendon injury
115
complications with hands
Cellulitis, abscess, osteomyelitis (pseudomonas)
116
“No man’s land”
flexor tendon injury
117
mangement of flexor tendons
Flexor repaired in OR – ortho
| Some extensor – ED can repair
118
sausage finger held in flexion
Flexor tenosynovitis, cellulitis
119
why do we worry about a fight bite?
weird bite
Eikenella corrodans, polymicrobial
120
mngmt of human bite
Admit, IV abx fight bite. Others: Augmentin
Tetanus, consider Hep B vaccine
Don’t miss DV!!
DO NOT SUTURE human bites!
121
high risk pathogen of cat bites
Pasturella Multoceda, Staph, Strep, Moraxella
Bartonella: Cat scratch fever
122
tx of animal bits
Clean like puncture
Do not suture!
Augmentin, close f/u
123
management of dog bites
```
Medium risk infection
Polymicrobial
Copious irrigation, debridement
No suture if hand, feet; face/scalp ok
Abx if hand, foot, big. Close f/u
```
124
rabies concerns
```
Medium risk infection
Polymicrobial
Copious irrigation, debridement
No suture if hand, feet; face/scalp ok
Abx if hand, foot, big. Close f/u
```
125
splints for
Splint all fractures,
tendon injuries,
Grade 2,3 sprains, infections,
lacs over joint area,
post-reduction/tap
126
back pain-how many need imagining
1:100 need imaging today
vast majority are muscle spasms or muscle strain
127
history for low back pain
OPQRST, mechanism, Hx same, plus...
Fever, weakness, numbness/sensory changes, bowel/bladder incontinence or retention, weight loss, IVDU...abdominal/female GU/prostate
128
when would you get an MRI for back pain
Plain film rare (older, fx, mets), CT: bone or if suspect fx
MRI: cord: if fever, IVDU, true new weakness or true sensory deficit
129
everyday mngmt of bakc pain
NSAID’s, APAP, muscle relaxant, self-care, expectations, work note
130
PE for back pain must include
Abdominal exam – rectal only if weakness/sensory change
Back: rash/lesions, bony tenderness, ROM, SLR
Neuro: Strength, sensory exam, DTR’s, gait
131
managment of low back pain
Trauma/fall/assault/direct blow (plain or CT – depends on severity)
* Fever (MRI)
* Motor weakness (cord compression, Transverse Myelitis (TM) MRI)
* Numb, sensory deficit: check saddle distribution (Cauda Equina: MRI)
* Bowel/bladder incontinence/retention (Cauda Equina - MRI)
* Bony or central tenderness (Fx, met, TM – plain vs CT first)
* Weight loss (Cancer – CT for mets)
* Elderly and no trauma (Think Aorta – CT)
* IVDU (Fever, back pain? Think Spinal Epidural AbscessMRI)
132
concerning low back pain
radicular sx’s, positive SLR, loss of DTR’s
| May need outpt MRI - unless precipitous progression (TM, cord)
133
Limp in Kids ddx
```
Acute Septic Arthritis
Transient (Toxic) Synovitis
Slipped Capital Femoral Epiphysis
Legg-Calve-Perthes
Rheumatic fever: 2-6wks after Grp A Strep
Juvenile Rheumatoid Arthritis
```
134
Acute Septic Arthritis
Often younger; hip, knee, elbow
| Fever, +/- toxic appearing
