sarah gill trying to kill us Flashcards
Fall with shoulder in external rotation?
Anterior dislocation of shoulder
What should you check if you have anterior shoulder dislocation?
Axillary badge patch!!
Fall with shoulder in internal rotation?
Posterior dislocation
Arm held in abduction
Humeral head inferior to the glenoid
Inferior dislocation
-NEEDS PROMPT NEUROVASCULAR ASSESSMENT AND REDUCTION
Light bulb sign on x-ray, which type of shoulder dislocation?
Posterior shoulder dislocation
Elbow dislocation gives small risk of which two fractures?
Coronoid process and radial head
Say you pull a child’s arm upwards, what could you dislocate?
Radial head
Management of shoulder dislocation?
Closed reduction under sedation
Open reduction
Stabilisation & rehabilitation
Management of elbow dislocation?
Closed reduction under sedation
Open reduction rarely required
2 weeks in sling & rehabilitation
Hippocratic, Kocher’s, in-line traction used to reduce which type of dislocation?
Shoudler
Traction in extension +/- pressure over olecranon used to reduce which type of dislocation?
Elbow dislocation
Closed reduction under digital or metacarpal block
Open reduction rarely required
2 weeks in neighbour strapping
Volar slab in Edinburgh position if unstable ++
IPJ dislocation
Which way will the patella dislocate?
It will always be a LATERAL dislocation
Always a lateral dislocation?
Patella!
Who is most likely to sustain a patella knee dislocation?
Teenage girls
Associations/causes of patella dislocation?
Hypermobility
Under-developed (hypoplastic) lateral femoral condyle
Increased Q-angle
Genu valgum
Increased femoral neck anteversion
Lateral quads insertions or weak vastus medialis
Q angle
Line 1: ASIS to midpoint of patella
Line 2: Tibial tuberosity to midpoint of patella
Examination of dislocated knee cap?
Pain medially (from torn medial retinaculum)
Effusion (haemarthrosis)
Patella apprehension test +ve
Management of knee dislocation
Reduce with knee extension Radiographs Aspiration Brace Physiotherapy
Surgery for repeat dislocations of the knee
Lateral release with medial reefing
Patellar tendon reallignment
Lateral collateral ligament injury and peroneal nerve injury, what have you probably done to your knee?
Dislocated it
-beware of spontaneous relocation, you do not want to miss diagnosis of dislocation!!
Knee dislocation and vascular damage, when do you observe and when do you do arteriorgram?
Vascular injuries: Popliteal artery / vein injury
May not be obvious (intimal tear or thrombus
NORMAL EXAM = OBSERVE IN HOSPITAL CLINICAL CONCERN = ARTERIOGRAM / MRI
How would you stabilise a knee after reduction?
Splint or external fixation
Time window for vascular repair following knee dislocation?
6 hours
Complications of knee dislocation
Arthrofibrosis and stiffness
Ligament laxity
Nerve or arterial injury
Fractures associated with hip dislocation?
Posterior acetabular wall
Femoral fractures
Flexed, internally rotated and adducted knee
Hip dislocation
Complications of hip dislocation
Sciatic nerve palsy
Avascular necrosis of the femoral head
Secondary osteoarthritis of hip
Myositis ossificans
General principles for treatment of open fractures?
Antibiotics, tetanus, early debridement and operative stabilisation
Approx blood loss in femoral fracture?
1 litre
Risks associated with femoral shaft fracture?
Fat embolism, ARDS
Analgesia for femoral shaft fracture?
Femoral block
Splintage for femoral shaft fracture?
Thomas splint
Treatment for unstable femoral shaft fracture?
IM nailing
Treatment for distal femur fractures?
Extra-articular If not too distal, can nail Distal = plating Intra-articular: Anatomical reduction, rigid fixation Plate and screws
Usual fracture of proximal tibia?
High energy young, low energy old
Usually Valgus stress lateral tibial plateau # with disruption articular surface
What investigation should you carry out for proximal tibial fracture?
CT scan!! (to determine personailty of fracture)
Internal rotation and tibial shaft fracture?
Internal rotation POORLY toerated
Can tolerate 5 degress angulation any plane, 50% bony contact
Pilon fracture?
Intra-articular distal tibial fracture
Injuries associated with a distal tibial fracture?
Calcaneous
Pelvis
Spine
(distal tibial fracture is usually high energy)
THIS IS A SIGNIFICANT SOFT INJURY
- external fixation
- +/- limited internal fixation
- CT
What happens if you have a distal fibular fracture with deltoid ligament rupture?
Talar shift
Often avulsion fracture from triceps contraction
Olecranon fracture
Radial head fracture
can occur with dislocation elbow
Minimally displaced marginal fractures treated conservatively (unless fragment blocking ROM)
Can fix displaced fractures with large fragments
Comminuted fractures excise +/- replacement
Galeazzi fracture
Fracture of radius, dislocation of DRUJ
Monteggia
Fracture of ulna and dislocation of radial HEAD